Weather for West Linn, Oregon
Current Weather
Five Day Weather Forecast
Tue
H: 65°F
L: 45°F
Wed
H: 67°F
L: 41°F
Thu
H: 71°F
L: 44°F
Fri
H: 67°F
L: 48°F
Sat
H: 52°F
L: 44°F
Air Quality
Nitrogen Dioxide: 23.95 μg/m3
Sulphur Dioxide: 2.65 μg/m3
Ozone: 54 μg/m3
Astronomical
Sun Transit: 1:13 PM
Sunset: 7:48 PM
Daylight: 13 hrs 7 mins
Moon Transit: 5:15 AM
Moonset: 9:12 AM
Moon Phase: Waning Gibbous
Moon Illumination: 64.3%
Best Times for Fishing or Hunting
Major Periods
4:45 AM - 7:15 AM12:38 AM - 3:08 PM
Minor Periods
8:42 AM - 10:12 AM12:47 AM - 2:17 AM
Action Rating: 2 out of 5
Frost Advisory issued April 7 at 12:58AM PDT until April 8 at 9:00AM PDT by NWS Portland OR
Effective: Tue April 7, 2026, 12:58 AM
Expires: Wed April 8, 2026, 9:00 AM
* WHAT...Temperatures as low as 33 to 36 degrees will result in frost formation. * WHERE...Willapa Hills and Adjacent River Valleys of Pacific and Wahkiakum Counties, Lower Columbia River and Cowlitz River Valleys, North Oregon Coast Range Lowlands, North Oregon Coast Range, Upper Hood River Valley, North Clark County Lowlands, and South Washington Cascade Foothills. * WHEN...From 11 PM this evening to 9 AM PDT Wednesday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.
Take steps now to protect tender outdoor plants from the cold. Consider temporarily moving outdoor potted plants indoors if they are sensitive to cold temperatures. Consider temporarily covering sensitive plants with a lightweight cotton fabric (i.e., bedsheets, thin blankets), as this will help retain heat and provide frost protection for your plants.
Frost Advisory issued April 7 at 9:21AM PDT until April 8 at 9:00AM PDT by NWS Portland OR
Effective: Tue April 7, 2026, 9:21 AM
Expires: Wed April 8, 2026, 9:00 AM
* WHAT...Temperatures as low as 34 to 36 degrees will result in frost formation. * WHERE...Central and Southern Willamette Valley, Tualatin Valley, and Inner Vancouver Metro. * WHEN...From 11 PM this evening to 9 AM PDT Wednesday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.
Take steps now to protect tender outdoor plants from the cold. Consider temporarily moving outdoor potted plants indoors if they are sensitive to cold temperatures. Consider temporarily covering sensitive plants with a lightweight cotton fabric (i.e., bedsheets, thin blankets), as this will help retain heat and provide frost protection for your plants.
Frost Advisory issued April 7 at 9:21AM PDT until April 8 at 9:00AM PDT by NWS Portland OR
Effective: Tue April 7, 2026, 9:21 AM
Expires: Wed April 8, 2026, 9:00 AM
* WHAT...Temperatures as low as 33 to 36 degrees will result in frost formation. * WHERE...Willapa Hills and Adjacent River Valleys of Pacific and Wahkiakum Counties, Lower Columbia River and Cowlitz River Valleys, North Oregon Coast Range Lowlands, North Oregon Coast Range, Upper Hood River Valley, North Clark County Lowlands, and South Washington Cascade Foothills. * WHEN...From 11 PM this evening to 9 AM PDT Wednesday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.
Take steps now to protect tender outdoor plants from the cold. Consider temporarily moving outdoor potted plants indoors if they are sensitive to cold temperatures. Consider temporarily covering sensitive plants with a lightweight cotton fabric (i.e., bedsheets, thin blankets), as this will help retain heat and provide frost protection for your plants.
Weather Forecast
Air Quality
Nitrogen Dioxide: 13.4 μg/m3
Sulphur Dioxide: 2.17 μg/m3
Ozone: 49.88 μg/m3
Astronomical
Sun Transit: 1:13 PM
Sunset: 7:48 PM
Daylight: 13 hrs 7 mins
Moon Transit: 5:15 AM
Moonset: 9:12 AM
Moon Phase: Waning Gibbous
Moon Illumination: 64.3%
Best Times for Fishing or Hunting
Major Periods
4:45 AM - 7:15 AM12:38 AM - 3:08 PM
Minor Periods
8:42 AM - 10:12 AM12:47 AM - 2:17 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 16.86 μg/m3
Sulphur Dioxide: 2.71 μg/m3
Ozone: 50 μg/m3
Astronomical
Sun Transit: 1:13 PM
Sunset: 7:49 PM
Daylight: 13 hrs 10 mins
Moon Transit: 6:07 AM
Moonset: 10:04 AM
Moon Phase: Last Quarter
Moon Illumination: 53.2%
Best Times for Fishing or Hunting
Major Periods
5:37 AM - 8:07 AM1:30 PM - 4:00 PM
Minor Periods
9:34 AM - 11:04 AM1:42 AM - 3:12 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 29.42 μg/m3
Sulphur Dioxide: 3.64 μg/m3
Ozone: 52.64 μg/m3
Astronomical
Sun Transit: 1:13 PM
Sunset: 7:50 PM
Daylight: 13 hrs 13 mins
Moon Transit: 6:58 AM
Moonset: 11:04 AM
Moon Phase: Last Quarter
Moon Illumination: 41.9%
Best Times for Fishing or Hunting
Major Periods
6:28 AM - 8:58 AM2:20 PM - 4:50 PM
Minor Periods
10:34 AM - 12:04 AM2:27 AM - 3:57 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 21.87 μg/m3
Sulphur Dioxide: 3.13 μg/m3
Ozone: 54.88 μg/m3
Astronomical
Sun Transit: 1:13 PM
Sunset: 7:52 PM
Daylight: 13 hrs 16 mins
Moon Transit: 7:48 AM
Moonset: 12:10 AM
Moon Phase: Last Quarter
Moon Illumination: 31.0%
Best Times for Fishing or Hunting
Major Periods
7:18 AM - 9:48 AM3:10 PM - 5:40 PM
Minor Periods
11:40 AM - 1:10 PM3:04 AM - 4:34 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 14.6 μg/m3
Sulphur Dioxide: 2.74 μg/m3
Ozone: 55.23 μg/m3
Astronomical
Sun Transit: 1:12 PM
Sunset: 7:53 PM
Daylight: 13 hrs 19 mins
Moon Transit: 8:37 AM
Moonset: 1:19 PM
Moon Phase: Last Quarter
Moon Illumination: 21.1%
Best Times for Fishing or Hunting
Major Periods
8:07 AM - 10:37 AM3:58 PM - 6:28 PM
Minor Periods
12:49 AM - 2:19 PM3:33 AM - 5:03 AM
Action Rating: 2 out of 5