Zone Weather Forecast - Willamette Valley

Cowlitz County Lowlands-
Including the cities of Kelso, Longview, Castle Rock, Kalama, and Woodland
Dec 15 2025 145 PM PST ...FLOOD WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH LATE FRIDAY NIGHT...
Tonight:
Mostly cloudy. A chance of rain with a slight chance of thunderstorms this evening, then rain after midnight. Lows in the upper 40s. South wind 5 to 10 mph. Chance of rain 90 percent. Rainfall amounts around a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday:
Rain. Highs in the mid 50s. South wind 10 to 15 mph. Chance of rain near 100 percent. Rainfall amounts a quarter to a half of an inch.
Tuesday Night:
Rain with a slight chance of thunderstorms. Lows in the lower 40s. South wind 15 to 20 mph, becoming west after midnight. Gusts up to 45 mph. Chance of rain near 100 percent. Rainfall amounts a half to three quarters of an inch, except higher amounts possible in thunderstorms.
Wednesday:
A slight chance of thunderstorms. Rain in the morning, then rain showers in the afternoon. Highs in the upper 40s. Southwest wind 10 to 15 mph. Chance of rain near 100 percent.
Wednesday Night:
Rain. Lows around 40. South wind 5 to 10 mph. Chance of rain near 100 percent.
Thursday:
Rain. Highs in the lower 50s. Chance of rain near 100 percent.
Thursday Night:
Rain. Lows around 40. Chance of rain near 100 percent.
Friday:
Rain. Highs in the mid 40s. Chance of rain 90 percent.
Friday Night:
Rain likely. Lows in the upper 30s. Chance of rain 70 percent.
Saturday:
Rain. Highs in the mid 40s. Chance of rain 80 percent.
Saturday Night:
Rain likely. Lows in the upper 30s. Chance of rain 70 percent.
Sunday:
Rain likely. Highs in the mid 40s. Chance of rain 60 percent.
Sunday Night:
Rain likely. Lows in the upper 30s. Chance of rain 70 percent.
Monday:
Rain likely. Highs in the upper 40s. Chance of rain 60 percent.

Kelso/Longview 47 56 42 49 Kalama 48 57 42 49 Castle Rock 46 55 41 48

Lower Columbia River-
Including the cities of Scappoose, St. Helens, Rainier, and Clatskanie
Dec 15 2025 145 PM PST ...FLOOD WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH LATE FRIDAY NIGHT...
Tonight:
Mostly cloudy. A chance of rain this evening, then rain likely after midnight. Lows in the upper 40s. South wind 5 to 10 mph. Chance of rain 70 percent. Rainfall amounts less than a tenth of an inch.
Tuesday:
Rain. Highs in the upper 50s. South wind 10 to 15 mph. Gusts up to 35 mph in the afternoon. Chance of rain near 100 percent. Rainfall amounts a quarter to a half of an inch.
Tuesday Night:
Rain with a slight chance of thunderstorms. Lows in the lower 40s. South wind 15 to 20 mph, becoming west after midnight. Gusts up to 45 mph. Chance of rain near 100 percent. Rainfall amounts a half to three quarters of an inch, except higher amounts possible in thunderstorms.
Wednesday:
Rain with a slight chance of thunderstorms. Highs around 50. Southwest wind 10 to 15 mph. Chance of rain near 100 percent.
Wednesday Night:
Rain. Lows in the lower 40s. South wind 5 to 10 mph. Chance of rain near 100 percent.
Thursday:
Rain. Highs in the mid 50s. Chance of rain near 100 percent.
Thursday Night:
Rain. Lows in the lower 40s. Chance of rain 90 percent.
Friday:
Rain. Highs in the upper 40s. Chance of rain 90 percent.
Friday Night:
Rain likely. Lows in the upper 30s. Chance of rain 70 percent.
Saturday:
Rain likely. Highs in the mid 40s. Chance of rain 70 percent.
Saturday Night:
Rain likely. Lows in the upper 30s. Chance of rain 70 percent.
Sunday:
Rain likely. Highs in the upper 40s. Chance of rain 70 percent.
Sunday Night:
Rain likely. Lows in the upper 30s. Chance of rain 70 percent.
Monday:
Rain likely. Highs in the upper 40s. Chance of rain 60 percent.

Scappoose 46 57 41 49 St Helens 48 57 43 49 Clatskanie 49 58 43 50

North Clark County Lowlands-
Including the cities of Ridgefield, Battle Ground, Hockinson, Brush Prairie, and La Center
Dec 15 2025 145 PM PST ...FLOOD WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH LATE FRIDAY NIGHT...
Tonight:
Mostly cloudy. A chance of rain with a slight chance of thunderstorms this evening, then rain after midnight. Lows in the upper 40s. South wind 5 to 10 mph. Chance of rain 90 percent. Rainfall amounts around a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday:
Rain. Highs in the upper 50s. South wind 10 to 15 mph. Chance of rain near 100 percent. Rainfall amounts around a quarter of an inch.
Tuesday Night:
Rain with a slight chance of thunderstorms. Breezy with lows in the lower 40s. South wind 15 to 25 mph, becoming west after midnight. Gusts up to 45 mph. Chance of rain near 100 percent. Rainfall amounts a half to three quarters of an inch, except higher amounts possible in thunderstorms.
Wednesday:
Rain. Highs around 50. Southwest wind 10 to 15 mph. Chance of rain near 100 percent.
Wednesday Night:
Rain. Lows around 40. Southeast wind 5 to 10 mph. Chance of rain near 100 percent.
Thursday:
Rain. Highs in the mid 50s. Chance of rain near 100 percent.
Thursday Night:
Rain. Lows around 40. Chance of rain near 100 percent.
Friday:
Rain. Highs in the upper 40s. Chance of rain 90 percent.
Friday Night:
Rain likely. Lows in the upper 30s. Chance of rain 70 percent.
Saturday:
Rain likely. Highs in the mid 40s. Chance of rain 70 percent.
Saturday Night:
Rain likely. Lows in the upper 30s. Chance of rain 70 percent.
Sunday:
Mostly cloudy with a 50 percent chance of rain. Highs in the upper 40s.
Sunday Night:
Rain likely. Lows in the upper 30s. Chance of rain 70 percent.
Monday:
Rain likely. Highs in the upper 40s. Chance of rain 70 percent.

Ridgefield 47 56 41 49 Battle Ground 46 56 40 48 Brush Prairie 47 57 41 49

Inner Vancouver Metro-
Including the cities of Vancouver, Salmon Creek, and Evergreen 145 PM PST Mon Dec 15 2025
...FLOOD WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH LATE FRIDAY NIGHT...
Tonight:
Mostly cloudy. A chance of rain with a slight chance of thunderstorms this evening, then rain after midnight. Lows in the upper 40s. South wind 5 to 10 mph. Chance of rain 90 percent. Rainfall amounts less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday:
Rain. Highs in the upper 50s. South wind 10 to 15 mph. Chance of rain near 100 percent. Rainfall amounts a tenth to a quarter of an inch.
Tuesday Night:
Rain with a slight chance of thunderstorms. Breezy with lows in the lower 40s. South wind 15 to 25 mph, becoming west after midnight. Gusts up to 45 mph. Chance of rain near 100 percent. Rainfall amounts around a half of an inch, except higher amounts possible in thunderstorms.
Wednesday:
Rain. Highs in the upper 40s. Southwest wind 10 to 15 mph. Chance of rain 90 percent.
Wednesday Night:
Rain. Lows in the lower 40s. Southeast wind 5 to 10 mph. Chance of rain near 100 percent.
Thursday:
Rain. Highs in the mid 50s. Chance of rain near 100 percent.
Thursday Night:
Rain. Lows in the lower 40s. Chance of rain near 100 percent.
Friday:
Rain likely. Highs in the upper 40s. Chance of rain 70 percent.
Friday Night:
Rain likely. Lows in the upper 30s. Chance of rain 60 percent.
Saturday:
Rain likely. Highs in the upper 40s. Chance of rain 60 percent.
Saturday Night:
Mostly cloudy with a 50 percent chance of rain. Lows in the upper 30s.
Sunday:
Mostly cloudy with a 50 percent chance of rain. Highs in the upper 40s.
Sunday Night:
Rain likely. Lows in the upper 30s. Chance of rain 60 percent.
Monday:
Rain likely. Highs in the upper 40s. Chance of rain 60 percent.

Vancouver 49 57 43 49 Salmon Creek 48 57 42 49

Inner Portland Metro-
Including the cities of Portland, Sellwood, Happy Valley, Lake Oswego, Oregon City, and Eagle Creek
Dec 15 2025 145 PM PST ...FLOOD WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH LATE FRIDAY NIGHT...
Tonight:
Mostly cloudy. A chance of rain with a slight chance of thunderstorms this evening, then rain after midnight. Lows in the upper 40s. South wind 5 to 10 mph. Chance of rain 90 percent. Rainfall amounts around a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday:
Rain. Highs in the upper 50s. South wind 10 to 15 mph. Chance of rain near 100 percent. Rainfall amounts a tenth to a quarter of an inch.
Tuesday Night:
Rain with a slight chance of thunderstorms. Breezy with lows in the lower 40s. Southwest wind 15 to 25 mph, becoming west after midnight. Gusts up to 45 mph. Chance of rain near 100 percent. Rainfall amounts a half to three quarters of an inch, except higher amounts possible in thunderstorms.
Wednesday:
Rain. Highs around 50. Southwest wind 10 to 15 mph. Chance of rain 90 percent.
Wednesday Night:
Rain. Lows in the lower 40s. South wind 5 to 10 mph. Chance of rain near 100 percent.
Thursday:
Rain. Highs in the mid 50s. Chance of rain near 100 percent.
Thursday Night:
Rain. Lows in the lower 40s. Chance of rain near 100 percent.
Friday:
Rain likely. Highs in the upper 40s. Chance of rain 70 percent.
Friday Night:
Mostly cloudy with a 50 percent chance of rain. Lows in the upper 30s.
Saturday:
Rain likely. Highs in the upper 40s. Chance of rain 70 percent.
Saturday Night:
Mostly cloudy with a 50 percent chance of rain. Lows in the upper 30s.
Sunday:
Mostly cloudy with a 50 percent chance of rain. Highs in the upper 40s.
Sunday Night:
Rain likely. Lows in the upper 30s. Chance of rain 70 percent.
Monday:
Rain likely. Highs in the upper 40s. Chance of rain 70 percent.

Portland 50 58 44 50 Parkrose 49 59 44 50 Lake Oswego 50 59 44 50 Happy Valley 48 57 42 47

Portland West Hills and Chehalem Mountain-
Including the cities of Sylvan Hill, Skyline Drive, and Chehalem Mountain
Dec 15 2025 145 PM PST ...FLOOD WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH LATE FRIDAY NIGHT...
Tonight:
Mostly cloudy. A chance of rain with a slight chance of thunderstorms this evening, then rain after midnight. Lows in the upper 40s. Southwest wind 5 to 10 mph. Chance of rain 90 percent. Rainfall amounts less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday:
A chance of rain in the morning, then rain in the afternoon. Highs in the mid 50s. South wind 10 to 15 mph. Chance of rain near 100 percent. Rainfall amounts a tenth to a quarter of an inch.
Tuesday Night:
Rain with a slight chance of thunderstorms. Windy with lows in the lower 40s. South wind 20 to 30 mph, becoming west 15 to 25 mph after midnight. Gusts up to 45 mph. Chance of rain near 100 percent. Rainfall amounts around a half of an inch, except higher amounts possible in thunderstorms.
Wednesday:
Rain. Highs in the upper 40s. Southwest wind 15 to 20 mph, easing to 5 to 10 mph in the afternoon. Chance of rain 90 percent.
Wednesday Night:
Rain. Lows in the lower 40s. South wind 5 to 10 mph. Chance of rain near 100 percent.
Thursday:
Rain. Highs in the lower 50s. Chance of rain near 100 percent.
Thursday Night:
Rain. Lows in the lower 40s. Chance of rain 90 percent.
Friday:
Rain likely. Highs in the upper 40s. Chance of rain 70 percent.
Friday Night:
Rain likely. Lows in the upper 30s. Chance of rain 60 percent.
Saturday:
Rain likely. Highs in the mid 40s. Chance of rain 60 percent.
Saturday Night:
Mostly cloudy with rain likely. Lows in the upper 30s. Chance of rain 60 percent.
Sunday:
Mostly cloudy with a 50 percent chance of rain. Highs in the mid 40s.
Sunday Night:
Rain likely. Lows in the upper 30s. Chance of rain 60 percent.
Monday:
Rain likely. Highs in the mid 40s. Chance of rain 60 percent.

Sylvan 48 55 43 47

East Portland Metro-
Including the cities of Fairview, Gresham, and Troutdale 145 PM PST Mon Dec 15 2025
...FLOOD WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH LATE FRIDAY NIGHT...
Tonight:
Cloudy. A chance of rain with a slight chance of thunderstorms this evening, then rain after midnight. Lows in the upper 40s. South wind 10 to 15 mph. Chance of rain 90 percent. Rainfall amounts around a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday:
Rain. Highs in the upper 50s. South wind 15 to 20 mph with gusts up to 35 mph. Chance of rain near 100 percent. Rainfall amounts around a quarter of an inch.
Tuesday Night:
A slight chance of thunderstorms. Rain, breezy with lows in the lower 40s. Southwest wind 20 to 25 mph with gusts up to 55 mph. Chance of rain near 100 percent. Rainfall amounts a half to three quarters of an inch, except higher amounts possible in thunderstorms.
Wednesday:
Rain. Highs in the upper 40s. Southwest wind 15 to 20 mph. Gusts up to 40 mph in the morning. Chance of rain near 100 percent.
Wednesday Night:
Rain. Lows in the lower 40s. South wind 5 to 10 mph, becoming southeast after midnight. Chance of rain near 100 percent.
Thursday:
Rain. Highs in the mid 50s. Chance of rain near 100 percent.
Thursday Night:
Rain. Lows in the lower 40s. Chance of rain near 100 percent.
Friday:
Rain likely. Highs in the upper 40s. Chance of rain 70 percent.
Friday Night:
Mostly cloudy with a 50 percent chance of rain. Lows in the upper 30s.
Saturday:
Rain likely. Highs in the upper 40s. Chance of rain 70 percent.
Saturday Night:
Mostly cloudy with rain likely. Lows in the upper 30s. Chance of rain 60 percent.
Sunday:
Mostly cloudy with a 50 percent chance of rain. Highs in the upper 40s.
Sunday Night:
Rain likely. Lows in the upper 30s. Chance of rain 70 percent.
Monday:
Rain likely. Highs in the upper 40s. Chance of rain 70 percent.

Troutdale 48 58 43 49 Gresham 49 58 42 48

Outer Southeast Portland Metro-
Including the cities of Boring, Sandy, and Estacada 145 PM PST Mon Dec 15 2025
...FLOOD WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH LATE FRIDAY NIGHT...
Tonight:
A chance of rain with a slight chance of thunderstorms this evening, then rain after midnight. Lows in the upper 40s. Southwest wind 10 to 15 mph. Chance of rain 90 percent. Rainfall amounts a tenth to a quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday:
Rain. Highs in the upper 50s. Southwest wind 10 to 15 mph. Chance of rain near 100 percent. Rainfall amounts a tenth to a quarter of an inch.
Tuesday Night:
A slight chance of thunderstorms. Rain, breezy with lows in the lower 40s. Southwest wind 15 to 25 mph with gusts up to 50 mph. Chance of rain near 100 percent. Rainfall amounts three quarters of an inch to one inch, except higher amounts possible in thunderstorms.
Wednesday:
Rain. Highs in the upper 40s. Southwest wind 10 to 15 mph. Chance of rain near 100 percent.
Wednesday Night:
Rain. Lows around 40. South wind 5 to 10 mph, becoming southeast after midnight. Chance of rain near 100 percent.
Thursday:
Rain. Highs in the mid 50s. Chance of rain near 100 percent.
Thursday Night:
Rain. Lows around 40. Chance of rain near 100 percent.
Friday:
Rain. Highs in the upper 40s. Chance of rain 90 percent.
Friday Night:
Rain likely. Lows in the upper 30s. Chance of rain 70 percent.
Saturday:
Rain likely. Highs in the mid 40s. Chance of rain 70 percent.
Saturday Night:
Mostly cloudy with rain likely. Lows in the mid 30s. Chance of rain 70 percent.
Sunday:
Rain likely. Highs in the upper 40s. Chance of rain 70 percent.
Sunday Night:
Rain likely. Lows in the upper 30s. Chance of rain 70 percent.
Monday:
Rain likely. Highs in the upper 40s. Chance of rain 70 percent.

Damascus 48 57 41 47 Sandy 48 55 39 44 Estacada 48 57 39 46

Tualatin Valley-
Including the cities of Sherwood, Hillsboro, Forest Grove, Rockcreek, and Tigard
Dec 15 2025 145 PM PST ...FLOOD WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH LATE FRIDAY NIGHT...
Tonight:
Mostly cloudy. A chance of rain with a slight chance of thunderstorms this evening, then rain after midnight. Lows in the upper 40s. South wind 5 to 10 mph. Chance of rain 90 percent. Rainfall amounts less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday:
Rain. Highs in the upper 50s. South wind 10 to 15 mph. Chance of rain near 100 percent. Rainfall amounts a tenth to a quarter of an inch.
Tuesday Night:
Rain with a slight chance of thunderstorms. Lows in the lower 40s. South wind 15 to 20 mph, becoming west after midnight. Gusts up to 40 mph. Chance of rain near 100 percent. Rainfall amounts around a half of an inch, except higher amounts possible in thunderstorms.
Wednesday:
Rain. Highs around 50. Southwest wind 10 to 15 mph. Chance of rain 90 percent.
Wednesday Night:
Rain. Lows in the lower 40s. Winds light. Chance of rain near 100 percent.
Thursday:
Rain. Highs in the mid 50s. Chance of rain near 100 percent.
Thursday Night:
Rain. Lows in the lower 40s. Chance of rain near 100 percent.
Friday:
Rain likely. Highs in the upper 40s. Chance of rain 70 percent.
Friday Night:
Rain likely. Lows in the upper 30s. Chance of rain 70 percent.
Saturday:
Rain likely. Highs in the upper 40s. Chance of rain 70 percent.
Saturday Night:
Mostly cloudy with a 50 percent chance of rain. Lows in the upper 30s.
Sunday:
Mostly cloudy with a 50 percent chance of rain. Highs in the upper 40s.
Sunday Night:
Rain likely. Lows in the upper 30s. Chance of rain 60 percent.
Monday:
Mostly cloudy with rain likely. Highs in the upper 40s. Chance of rain 60 percent.

Beaverton 49 59 43 51 Hillsboro 46 58 42 50 Forest Grove 47 58 42 49 Tualatin 49 59 44 51