Zone Weather Forecast - Willamette Valley

Cowlitz County Lowlands-
Including the cities of Kelso, Longview, Castle Rock, Kalama, and Woodland
Oct 31 2025 545 AM PDT
Today:
Mostly cloudy. A slight chance of rain this morning, then rain likely this afternoon. Highs in the upper 50s. South wind 5 to 10 mph. Chance of rain 70 percent. Rainfall amounts around a tenth of an inch.
Tonight:
Rain. Lows in the lower 50s. Southeast wind 10 mph. Chance of rain near 100 percent. Rainfall amounts a half of an inch to one inch.
Saturday:
Rain. Highs in the lower 60s. South wind 10 to 15 mph. Chance of rain near 100 percent. Rainfall amounts a quarter to a half of an inch.
Saturday Night:
Mostly cloudy. Rain likely, mainly in the evening. Lows in the lower 40s. Southwest wind 5 to 10 mph. Chance of rain 70 percent.
Sunday:
Partly sunny. A chance of rain in the morning. Highs in the upper 50s. Winds light. Chance of rain 30 percent.
Sunday Night:
Mostly cloudy. Lows in the lower 40s.
Monday:
Rain likely. Highs in the mid 50s. Chance of rain 60 percent.
Monday Night:
Rain. Lows in the mid 40s. Chance of rain 80 percent.
Tuesday:
Rain likely. Highs in the upper 50s. Chance of rain 70 percent.
Tuesday Night:
Rain. Lows around 50. Chance of rain 90 percent.
Wednesday:
Rain. Highs in the upper 50s. Chance of rain near 100 percent.
Wednesday Night:
Rain. Lows in the upper 40s. Chance of rain near 100 percent.
Thursday:
Rain. Highs in the upper 50s. Chance of rain near 100 percent.

Kelso/Longview 58 52 61 Kalama 60 54 63 Castle Rock 59 51 61

Lower Columbia River-
Including the cities of Scappoose, St. Helens, Rainier, and Clatskanie
Oct 31 2025 545 AM PDT
Today:
Mostly cloudy. A chance of rain this afternoon. Highs around 60. Southeast wind 5 to 10 mph. Chance of rain 50 percent. Rainfall amounts less than a tenth of an inch.
Tonight:
Rain. Lows in the lower 50s. Southeast wind 5 to 10 mph. Chance of rain near 100 percent. Rainfall amounts a half to three quarters of an inch.
Saturday:
Rain. Highs in the lower 60s. South wind 10 to 15 mph. Chance of rain near 100 percent. Rainfall amounts a quarter to a half of an inch.
Saturday Night:
Mostly cloudy. Rain likely, mainly in the evening. Lows in the mid 40s. Southwest wind 5 to 10 mph. Chance of rain 70 percent.
Sunday:
Partly sunny. A slight chance of rain in the morning. Highs in the upper 50s. Winds light. Chance of rain 20 percent.
Sunday Night:
Mostly cloudy. Lows in the mid 40s.
Monday:
Rain likely. Highs in the mid 50s. Chance of rain 60 percent.
Monday Night:
Rain. Lows in the upper 40s. Chance of rain 80 percent.
Tuesday:
Rain likely. Highs in the upper 50s. Chance of rain 70 percent.
Tuesday Night:
Rain. Lows in the lower 50s. Chance of rain 90 percent.
Wednesday:
Rain. Highs around 60. Chance of rain 90 percent.
Wednesday Night:
Rain. Lows around 50. Chance of rain 90 percent.
Thursday:
Rain. Highs in the upper 50s. Chance of rain near 100 percent.

Scappoose 58 51 61 St Helens 58 52 61 Clatskanie 59 55 61

North Clark County Lowlands-
Including the cities of Ridgefield, Battle Ground, Hockinson, Brush Prairie, and La Center
Oct 31 2025 545 AM PDT
Today:
Mostly cloudy. A chance of rain this afternoon. Highs in the lower 60s. Winds light. Chance of rain 50 percent. Rainfall amounts less than a tenth of an inch.
Tonight:
Rain. Lows in the lower 50s. Southeast wind 5 to 10 mph. Chance of rain near 100 percent. Rainfall amounts a half to three quarters of an inch.
Saturday:
Rain. Highs in the lower 60s. South wind 10 to 15 mph. Chance of rain near 100 percent. Rainfall amounts a quarter to a half of an inch.
Saturday Night:
Mostly cloudy. Rain likely, mainly in the evening. Lows in the lower 40s. Southwest wind 5 to 10 mph. Chance of rain 70 percent.
Sunday:
Partly sunny. A slight chance of rain in the morning. Highs in the upper 50s. Winds light in the morning, becoming light and variable. Chance of rain 20 percent.
Sunday Night:
Mostly cloudy. Lows in the lower 40s.
Monday:
Rain likely. Highs in the mid 50s. Chance of rain 60 percent.
Monday Night:
Rain. Lows in the mid 40s. Chance of rain 80 percent.
Tuesday:
Rain likely. Highs in the upper 50s. Chance of rain 70 percent.
Tuesday Night:
Rain. Lows in the upper 40s. Chance of rain 90 percent.
Wednesday:
Rain. Highs in the upper 50s. Chance of rain 90 percent.
Wednesday Night:
Rain. Lows in the upper 40s. Chance of rain 90 percent.
Thursday:
Rain. Highs in the upper 50s. Chance of rain near 100 percent.

Ridgefield 58 52 61 Battle Ground 60 50 61 Brush Prairie 60 51 61

Inner Vancouver Metro-
Including the cities of Vancouver, Salmon Creek, and Evergreen 545 AM PDT Fri Oct 31 2025

Today:
Mostly cloudy. A chance of rain this afternoon. Highs around 60. Winds light. Chance of rain 50 percent. Rainfall amounts less than a tenth of an inch.
Tonight:
Rain. Lows in the lower 50s. Southeast wind 5 to 10 mph. Chance of rain near 100 percent. Rainfall amounts around a half of an inch.
Saturday:
Rain. Highs in the lower 60s. South wind 10 to 15 mph. Chance of rain near 100 percent. Rainfall amounts around a quarter of an inch.
Saturday Night:
Mostly cloudy. Rain likely, mainly in the evening. Lows in the mid 40s. Southwest wind 5 to 10 mph. Chance of rain 70 percent.
Sunday:
Partly sunny. A slight chance of rain in the morning. Highs in the upper 50s. Winds light. Chance of rain 20 percent.
Sunday Night:
Mostly cloudy. Lows in the mid 40s.
Monday:
Rain likely. Highs in the mid 50s. Chance of rain 60 percent.
Monday Night:
Rain. Lows in the upper 40s. Chance of rain 80 percent.
Tuesday:
Rain likely. Highs in the upper 50s. Chance of rain 60 percent.
Tuesday Night:
Rain. Lows in the lower 50s. Chance of rain 90 percent.
Wednesday:
Rain. Highs around 60. Chance of rain 90 percent.
Wednesday Night:
Rain. Lows around 50. Chance of rain 90 percent.
Thursday:
Rain. Highs in the upper 50s. Chance of rain 90 percent.

Vancouver 59 54 61 Salmon Creek 59 52 61

Inner Portland Metro-
Including the cities of Portland, Sellwood, Happy Valley, Lake Oswego, Oregon City, and Eagle Creek
Oct 31 2025 545 AM PDT
Today:
Mostly cloudy. A slight chance of rain this afternoon. Highs in the lower 60s. Winds light. Chance of rain 20 percent.
Tonight:
Rain. Lows in the mid 50s. South wind 5 to 10 mph. Chance of rain near 100 percent. Rainfall amounts a quarter to a half of an inch.
Saturday:
Rain. Highs in the lower 60s. South wind 10 to 15 mph. Chance of rain near 100 percent. Rainfall amounts a quarter to a half of an inch.
Saturday Night:
Mostly cloudy. Rain likely, mainly in the evening. Lows in the mid 40s. Southwest wind 5 to 10 mph. Chance of rain 70 percent.
Sunday:
Partly sunny. A slight chance of rain in the morning. Highs in the upper 50s. Winds light. Chance of rain 20 percent.
Sunday Night:
Mostly cloudy. Lows in the mid 40s.
Monday:
Rain likely. Highs in the upper 50s. Chance of rain 60 percent.
Monday Night:
Rain. Lows in the upper 40s. Chance of rain 80 percent.
Tuesday:
Rain likely. Highs around 60. Chance of rain 70 percent.
Tuesday Night:
Rain. Lows in the lower 50s. Chance of rain 90 percent.
Wednesday:
Rain. Highs in the lower 60s. Chance of rain 90 percent.
Wednesday Night:
Rain. Lows around 50. Chance of rain 90 percent.
Thursday:
Rain. Highs in the upper 50s. Chance of rain 90 percent.

Portland 59 54 61 Parkrose 61 54 63 Lake Oswego 60 54 62 Happy Valley 58 53 59

Portland West Hills and Chehalem Mountain-
Including the cities of Sylvan Hill, Skyline Drive, and Chehalem Mountain
Oct 31 2025 545 AM PDT
Today:
Mostly cloudy. A chance of rain this afternoon. Highs in the upper 50s. Winds light. Chance of rain 50 percent. Rainfall amounts less than a tenth of an inch.
Tonight:
Rain. Lows 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.
Saturday:
Rain. Highs around 60. South wind 15 to 20 mph. Chance of rain near 100 percent. Rainfall amounts a quarter to a half of an inch.
Saturday Night:
Mostly cloudy. Rain likely, mainly in the evening. Lows in the lower 40s. Southwest wind 5 to 10 mph. Chance of rain 70 percent.
Sunday:
Mostly sunny. Highs in the mid 50s. Winds light.
Sunday Night:
Mostly cloudy. Lows in the mid 40s.
Monday:
Cloudy with a 50 percent chance of rain. Highs in the lower 50s.
Monday Night:
Rain. Lows in the upper 40s. Chance of rain 80 percent.
Tuesday:
Mostly cloudy with a 50 percent chance of rain. Highs in the upper 50s.
Tuesday Night:
Rain. Lows around 50. Chance of rain 90 percent.
Wednesday:
Rain. Highs in the upper 50s. Chance of rain 90 percent.
Wednesday Night:
Rain. Lows around 50. Chance of rain 90 percent.
Thursday:
Rain. Highs in the mid 50s. Chance of rain 90 percent.

Sylvan 57 54 58

East Portland Metro-
Including the cities of Fairview, Gresham, and Troutdale 545 AM PDT Fri Oct 31 2025

Today:
Mostly cloudy. A chance of rain this afternoon. Highs in the lower 60s. Winds light. Chance of rain 30 percent. Rainfall amounts less than a tenth of an inch.
Tonight:
Rain. Lows in the lower 50s. Southeast wind 5 to 10 mph. Chance of rain near 100 percent. Rainfall amounts a quarter to a half of an inch.
Saturday:
Rain. Highs in the lower 60s. South wind 10 to 15 mph. Chance of rain near 100 percent. Rainfall amounts a quarter to a half of an inch.
Saturday Night:
Mostly cloudy. Rain likely, mainly in the evening. Lows in the mid 40s. Southwest wind 5 to 10 mph. Chance of rain 70 percent.
Sunday:
Mostly cloudy with a slight chance of rain in the morning, then mostly sunny in the afternoon. Highs in the upper 50s. Winds light. Chance of rain 20 percent.
Sunday Night:
Mostly cloudy. Lows in the mid 40s.
Monday:
Rain likely. Highs in the upper 50s. Chance of rain 60 percent.
Monday Night:
Rain. Lows in the upper 40s. Chance of rain 80 percent.
Tuesday:
Rain likely. Highs in the upper 50s. Chance of rain 70 percent.
Tuesday Night:
Rain. Lows in the lower 50s. Chance of rain 90 percent.
Wednesday:
Rain. Highs around 60. Chance of rain 90 percent.
Wednesday Night:
Rain. Lows around 50. Chance of rain 90 percent.
Thursday:
Rain. Highs in the upper 50s. Chance of rain 90 percent.

Troutdale 60 52 62 Gresham 60 54 61

Outer Southeast Portland Metro-
Including the cities of Boring, Sandy, and Estacada 545 AM PDT Fri Oct 31 2025

Today:
Mostly cloudy. A slight chance of rain this afternoon. Highs in the lower 60s. Winds light. Chance of rain 20 percent.
Tonight:
Rain. Lows in the lower 50s. Southeast wind 5 to 10 mph. Chance of rain near 100 percent. Rainfall amounts around a quarter of an inch.
Saturday:
Rain. Highs in the lower 60s. South wind 10 to 15 mph. Chance of rain near 100 percent. Rainfall amounts around a half of an inch.
Saturday Night:
Mostly cloudy. Rain likely, mainly in the evening. Lows in the lower 40s. Southwest wind 5 to 10 mph. Chance of rain 70 percent.
Sunday:
Partly sunny. A slight chance of rain in the morning. Highs in the upper 50s. Winds light. Chance of rain 20 percent.
Sunday Night:
Mostly cloudy. Lows in the mid 40s.
Monday:
Rain likely. Highs in the mid 50s. Chance of rain 60 percent.
Monday Night:
Rain. Lows in the upper 40s. Chance of rain 80 percent.
Tuesday:
Rain likely. Highs in the upper 50s. Chance of rain 70 percent.
Tuesday Night:
Rain. Lows around 50. Chance of rain 90 percent.
Wednesday:
Rain. Highs in the upper 50s. Chance of rain 90 percent.
Wednesday Night:
Rain. Lows in the upper 40s. Chance of rain 90 percent.
Thursday:
Rain. Highs in the upper 50s. Chance of rain 90 percent.

Damascus 59 53 59 Sandy 58 51 58 Estacada 60 52 60

Tualatin Valley-
Including the cities of Sherwood, Hillsboro, Forest Grove, Rockcreek, and Tigard
Oct 31 2025 545 AM PDT
Today:
Mostly cloudy. A chance of rain this afternoon. Highs in the lower 60s. Winds light. Chance of rain 50 percent. Rainfall amounts less than a tenth of an inch.
Tonight:
Rain. Lows in the lower 50s. South wind 5 to 10 mph. Chance of rain near 100 percent. Rainfall amounts a quarter to a half of an inch.
Saturday:
Rain. Highs in the lower 60s. South wind 10 to 15 mph. Chance of rain near 100 percent. Rainfall amounts a quarter to a half of an inch.
Saturday Night:
Mostly cloudy. Rain likely, mainly in the evening. Lows in the lower 40s. Southwest wind 5 to 10 mph. Chance of rain 70 percent.
Sunday:
Mostly sunny. Highs in the upper 50s. Light and variable winds, becoming light in the afternoon.
Sunday Night:
Mostly cloudy. Lows in the mid 40s.
Monday:
Cloudy with a 50 percent chance of rain. Highs in the mid 50s.
Monday Night:
Rain. Lows in the upper 40s. Chance of rain 80 percent.
Tuesday:
Mostly cloudy with a 50 percent chance of rain. Highs in the upper 50s.
Tuesday Night:
Rain. Lows around 50. Chance of rain 90 percent.
Wednesday:
Rain. Highs in the lower 60s. Chance of rain 90 percent.
Wednesday Night:
Rain. Lows in the upper 40s. Chance of rain 90 percent.
Thursday:
Rain. Highs in the upper 50s. Chance of rain 90 percent.

Beaverton 60 54 63 Hillsboro 58 52 62 Forest Grove 59 52 63 Tualatin 61 54 63