Zone Weather Forecast - Willamette Valley

Cowlitz County Lowlands-
Including the cities of Kelso, Longview, Castle Rock, Kalama, and Woodland
Jan 20 2025 345 AM PST Jan 20 2025 345 AM PST
Today:
Widespread frost this morning. Sunny. Highs in the mid 40s. Winds light.
Tonight:
Mostly cloudy. Widespread frost. Lows in the upper 20s. Light and variable winds.
Tuesday:
Widespread frost in the morning. Mostly sunny. Highs in the mid 40s. Light and variable winds.
Tuesday Night:
Partly cloudy. Widespread frost. Lows in the upper 20s. Light and variable winds.
Wednesday:
Widespread frost in the morning. Mostly sunny. Highs in the mid 40s. Winds light.
Wednesday Night:
Partly cloudy. Lows in the upper 20s.
Thursday:
Partly sunny with a slight chance of rain and snow. Highs in the mid 40s. Chance of precipitation 20 percent.
Thursday Night:
Mostly cloudy with a 50 percent chance of rain. Lows in the lower 30s.
Friday:
Mostly cloudy in the morning, then becoming mostly sunny. A 40 percent chance of rain. Highs in the lower 40s.
Friday Night:
Mostly clear. Lows in the upper 20s.
Saturday:
Sunny. Highs in the lower 40s.
Saturday Night:
Mostly clear. Lows in the mid 20s.
Sunday:
Sunny. Highs in the mid 40s.

Kelso/Longview 43 28 44 Kalama 45 28 44 Castle Rock 42 28 44

Lower Columbia River-
Including the cities of Scappoose, St. Helens, Rainier, and Clatskanie
Jan 20 2025 345 AM PST Jan 20 2025 345 AM PST
Today:
Widespread frost this morning. Sunny. Highs in the mid 40s. Winds light.
Tonight:
Mostly cloudy. Widespread frost. Lows in the upper 20s. Winds light in the evening, becoming light and variable.
Tuesday:
Widespread frost in the morning. Mostly sunny. Highs in the mid 40s. Light and variable winds.
Tuesday Night:
Partly cloudy. Widespread frost. Lows in the upper 20s. Light and variable winds.
Wednesday:
Widespread frost in the morning. Mostly sunny. Highs in the mid 40s. Winds light.
Wednesday Night:
Partly cloudy. Lows in the upper 20s.
Thursday:
Mostly sunny with a slight chance of rain and snow. Highs in the mid 40s. Chance of precipitation 20 percent.
Thursday Night:
Mostly cloudy with a 50 percent chance of rain. Lows in the mid 30s.
Friday:
Partly sunny with a 40 percent chance of rain. Highs in the mid 40s.
Friday Night:
Mostly clear. Lows in the upper 20s.
Saturday:
Sunny. Highs in the mid 40s.
Saturday Night:
Mostly clear. Lows in the upper 20s.
Sunday:
Sunny. Highs in the mid 40s.

Scappoose 43 26 43 St Helens 44 28 43 Clatskanie 43 30 44

North Clark County Lowlands-
Including the cities of Ridgefield, Battle Ground, Hockinson, Brush Prairie, and La Center
Jan 20 2025 345 AM PST Jan 20 2025 345 AM PST
Today:
Sunny. Highs in the mid 40s. Northeast wind 5 to 10 mph, becoming light this afternoon.
Tonight:
Mostly cloudy. Widespread frost. Lows in the mid 20s. Winds light.
Tuesday:
Partly sunny in the morning, then clearing. Widespread frost in the morning. Highs in the mid 40s. Light and variable winds.
Tuesday Night:
Mostly clear in the evening, then becoming partly cloudy. Widespread frost. Lows in the upper 20s. Light and variable winds.
Wednesday:
Widespread frost in the morning. Mostly sunny. Highs in the mid 40s. Winds light.
Wednesday Night:
Partly cloudy. Lows in the upper 20s.
Thursday:
Mostly sunny with a slight chance of rain and snow. Highs in the mid 40s. Chance of precipitation 20 percent.
Thursday Night:
Mostly cloudy with a 50 percent chance of rain. Lows in the lower 30s.
Friday:
Mostly cloudy in the morning, then becoming mostly sunny. A 50 percent chance of rain. Highs in the lower 40s.
Friday Night:
Mostly clear with a 20 percent chance of rain. Snow level 1000 feet. Lows in the mid 20s.
Saturday:
Sunny. Highs in the mid 40s.
Saturday Night:
Mostly clear. Lows in the mid 20s.
Sunday:
Sunny. Highs in the mid 40s.

Ridgefield 43 26 42 Battle Ground 43 26 43 Brush Prairie 43 26 43

Inner Vancouver Metro-
Including the cities of Vancouver, Salmon Creek, and Evergreen 345 AM PST Mon Jan 20 2025
Jan 20 2025 345 AM PST
Today:
Sunny. Highs in the mid 40s. North wind 5 to 10 mph.
Tonight:
Mostly cloudy. Widespread frost. Lows in the upper 20s. Winds light.
Tuesday:
Partly sunny in the morning, then clearing. Widespread frost in the morning. Highs in the mid 40s. Light and variable winds.
Tuesday Night:
Mostly clear in the evening, then becoming partly cloudy. Widespread frost. Lows in the upper 20s. Light and variable winds.
Wednesday:
Widespread frost in the morning. Mostly sunny. Highs in the mid 40s. Winds light.
Wednesday Night:
Partly cloudy. Lows in the upper 20s.
Thursday:
Mostly sunny with a 20 percent chance of rain. Highs in the mid 40s.
Thursday Night:
Mostly cloudy with a 40 percent chance of rain. Lows in the lower 30s.
Friday:
Mostly cloudy in the morning, then becoming mostly sunny. A 40 percent chance of rain. Highs in the mid 40s.
Friday Night:
Mostly clear. Lows in the upper 20s.
Saturday:
Sunny. Highs in the mid 40s.
Saturday Night:
Mostly clear. Lows in the upper 20s.
Sunday:
Sunny. Highs in the mid 40s.

Vancouver 43 28 43 Salmon Creek 43 26 43

Inner Portland Metro-
Including the cities of Portland, Sellwood, Happy Valley, Lake Oswego, Oregon City, and Eagle Creek
Jan 20 2025 345 AM PST Jan 20 2025 345 AM PST
Today:
Sunny. Highs in the mid 40s. Northeast wind 10 to 15 mph.
Tonight:
Mostly cloudy. Widespread frost. Lows in the upper 20s. Winds light.
Tuesday:
Widespread frost in the morning. Mostly sunny. Highs in the mid 40s. Winds light.
Tuesday Night:
Mostly clear in the evening, then becoming partly cloudy. Widespread frost. Lows in the upper 20s. Winds light.
Wednesday:
Widespread frost in the morning. Mostly sunny. Highs in the mid 40s. Winds light.
Wednesday Night:
Partly cloudy. Lows in the upper 20s.
Thursday:
Mostly sunny. Highs in the mid 40s.
Thursday Night:
Mostly cloudy with a 50 percent chance of rain. Lows in the mid 30s.
Friday:
Mostly cloudy in the morning, then becoming mostly sunny. A 50 percent chance of rain. Highs in the lower 40s.
Friday Night:
Mostly clear with a 20 percent chance of rain. Snow level 1000 feet. Lows in the upper 20s.
Saturday:
Sunny. Highs in the mid 40s.
Saturday Night:
Mostly clear. Lows in the upper 20s.
Sunday:
Sunny. Highs in the mid 40s.

Portland 42 29 43 Parkrose 42 29 44 Lake Oswego 42 28 43 Happy Valley 41 28 41

Portland West Hills and Chehalem Mountain-
Including the cities of Sylvan Hill, Skyline Drive, and Chehalem Mountain
Jan 20 2025 345 AM PST Jan 20 2025 345 AM PST
Today:
Widespread frost this morning. Sunny. Highs in the lower 40s. Northeast wind 10 to 15 mph.
Tonight:
Mostly cloudy. Widespread frost. Lows in the upper 20s. Winds light.
Tuesday:
Mostly sunny. Widespread frost in the morning, then areas of frost in the afternoon. Highs in the lower 40s. Light and variable winds.
Tuesday Night:
Mostly clear. Widespread frost. Lows in the upper 20s. Light and variable winds, becoming light after midnight.
Wednesday:
Widespread frost in the morning. Mostly sunny. Highs in the mid 40s. Winds light.
Wednesday Night:
Partly cloudy. Lows in the upper 20s.
Thursday:
Mostly sunny. Highs in the lower 40s.
Thursday Night:
Mostly cloudy with a 40 percent chance of rain. Lows in the lower 30s.
Friday:
Partly sunny with a 40 percent chance of rain. Highs in the lower 40s.
Friday Night:
Mostly clear. Lows in the upper 20s.
Saturday:
Sunny. Highs in the lower 40s.
Saturday Night:
Mostly clear. Lows in the mid 20s.
Sunday:
Sunny. Highs in the lower 40s.

Sylvan 39 28 40

East Portland Metro-
Including the cities of Fairview, Gresham, and Troutdale 345 AM PST Mon Jan 20 2025
Jan 20 2025 345 AM PST
Today:
Sunny. Highs in the lower 40s. East wind 15 to 20 mph with gusts up to 40 mph.
Tonight:
Mostly cloudy. Widespread frost after midnight. Lows in the upper 20s. East wind 10 to 15 mph, easing to light after midnight.
Tuesday:
Widespread frost in the morning. Mostly sunny. Highs in the mid 40s. Winds light.
Tuesday Night:
Mostly clear in the evening, then becoming partly cloudy. Widespread frost. Lows in the upper 20s. Winds light.
Wednesday:
Widespread frost in the morning. Mostly sunny. Highs in the mid 40s. Winds light.
Wednesday Night:
Partly cloudy. Lows around 30.
Thursday:
Mostly sunny. Highs in the mid 40s.
Thursday Night:
Mostly cloudy with a 50 percent chance of rain. Lows in the mid 30s.
Friday:
Mostly cloudy in the morning, then becoming partly sunny. A 50 percent chance of rain. Highs in the lower 40s.
Friday Night:
Partly cloudy in the evening, then becoming mostly clear. A 20 percent chance of rain. Snow level 1000 feet. Lows in the upper 20s.
Saturday:
Sunny. Highs in the mid 40s.
Saturday Night:
Mostly clear. Lows in the upper 20s.
Sunday:
Sunny. Highs in the mid 40s.

Troutdale 42 31 45 Gresham 41 29 42

Outer Southeast Portland Metro-
Including the cities of Boring, Sandy, and Estacada 345 AM PST Mon Jan 20 2025
Jan 20 2025 345 AM PST
Today:
Sunny. Highs in the mid 40s. Northeast wind 10 to 15 mph.
Tonight:
Mostly cloudy. Widespread frost. Lows in the upper 20s. East wind 5 to 10 mph, becoming light after midnight.
Tuesday:
Widespread frost in the morning. Mostly sunny. Highs in the mid 40s. Winds light.
Tuesday Night:
Mostly clear. Widespread frost. Lows in the upper 20s. Winds light.
Wednesday:
Widespread frost in the morning. Mostly sunny. Highs in the mid 40s. Winds light.
Wednesday Night:
Partly cloudy. Lows in the upper 20s.
Thursday:
Mostly sunny. Highs in the mid 40s.
Thursday Night:
Mostly cloudy with a 50 percent chance of rain. Lows in the lower 30s.
Friday:
Mostly cloudy in the morning, then becoming partly sunny. A 50 percent chance of rain. Highs around 40.
Friday Night:
Partly cloudy in the evening, then clearing. A 20 percent chance of rain. Snow level 1000 feet. Lows in the mid 20s.
Saturday:
Sunny. Highs in the lower 40s.
Saturday Night:
Mostly clear. Lows in the mid 20s.
Sunday:
Sunny. Highs in the mid 40s.

Damascus 42 28 42 Sandy 43 28 41 Estacada 45 28 44

Tualatin Valley-
Including the cities of Sherwood, Hillsboro, Forest Grove, Rockcreek, and Tigard
Jan 20 2025 345 AM PST Jan 20 2025 345 AM PST
Today:
Widespread frost this morning. Sunny. Highs in the lower 40s. Northeast wind 5 to 10 mph.
Tonight:
Mostly cloudy. Widespread frost. Lows in the mid 20s. Winds light in the evening, becoming light and variable.
Tuesday:
Widespread frost in the morning. Mostly sunny. Highs in the lower 40s. Light and variable winds.
Tuesday Night:
Mostly clear. Widespread frost. Lows in the upper 20s. Light and variable winds.
Wednesday:
Widespread frost in the morning. Mostly sunny. Highs in the mid 40s. Light and variable winds, becoming light in the afternoon.
Wednesday Night:
Partly cloudy. Lows in the upper 20s.
Thursday:
Mostly sunny. Highs in the mid 40s.
Thursday Night:
Mostly cloudy with a 40 percent chance of rain. Lows in the lower 30s.
Friday:
Partly sunny with a 40 percent chance of rain. Highs in the mid 40s.
Friday Night:
Mostly clear. Lows in the upper 20s.
Saturday:
Sunny. Highs in the mid 40s.
Saturday Night:
Clear. Lows in the mid 20s.
Sunday:
Sunny. Highs in the mid 40s.

Beaverton 42 27 43 Hillsboro 43 24 44 Forest Grove 42 26 43 Tualatin 43 28 44