Water Temperature of the Willamette River in West Linn, OR

Current Water Temperature

52.2°F

Measurement Time: Thursday, April 16, 2026, 1:15 PM PDT

Temperature Locations

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Willamette River

Station Name: WILLAMETTE RIVER AT NEWBERG, OR
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 76 feet

Nearest Address:
965 SW Borland Rd
West Linn, OR 97132
Yamhill County

GPS Coordinates: 45.2845625, -122.9614893

Nearby Water Temperatures

Chicken Creek, Sherwood, OR (8 mi)
Tualatin River, Beaverton, OR (8.7 mi)
Fanno Creek, Tigard, OR (13 mi)
Wapato Creek, Gaston, OR (13.4 mi)
Fanno Creek, Beaverton, OR (14.1 mi)
Tualatin River , West Linn, OR (14.3 mi)
Tualatin River, Hillsboro, OR (15 mi)
Scoggins Creek, Gaston, OR (15.3 mi)
Tualatin River, Dilley, OR (15.3 mi)
Rock Creek, Hillsboro, OR (15.5 mi)
Beaverton Creek, Beaverton, OR (15.9 mi)
Scoggins Creek, Gaston, OR (17.2 mi)
Gales Creek, Forest Grove, OR (17.3 mi)
Johnson Creek, Milwaukie, OR (19.3 mi)
Clackamas River, Oregon City, OR (19.8 mi)

Weather for West Linn, Oregon

Current Weather

48°F
Clear
Clear
45.4°F
47.9°F
66%
WNW 5.8 mph
12.2 mph
45.4°F
39.8°F
0 in
0%
9 mi
1026 mbar
0

Five Day Weather Forecast

Patchy rain nearby
Thu
H: 54°F
L: 37°F
Partly Cloudy
Fri
H: 56°F
L: 41°F
Partly Cloudy
Sat
H: 67°F
L: 43°F
Overcast
Sun
H: 72°F
L: 54°F
Partly Cloudy
Mon
H: 72°F
L: 48°F

Air Quality

AQI: 1 - Good
PM2.5: 12.95 μg/m3
PM10: 16.95 μg/m3
Carbon Monoxide: 259.85 μg/m3
Nitrogen Dioxide: 22.25 μg/m3
Sulphur Dioxide: 2.25 μg/m3
Ozone: 28 μg/m3

Astronomical

Sunrise: 6:25 AM
Sun Transit: 1:11 PM
Sunset: 7:59 PM
Daylight: 13 hrs 35 mins
Moonrise: 5:46 AM
Moon Transit: 12:31 AM
Moonset: 7:34 PM
Moon Phase: New
Moon Illumination: 0.8%

Best Times for Fishing or Hunting

Major Periods

7:54 PM - 10:24 PM
12:01 AM - 2:31 PM

Minor Periods

7:04 PM - 8:34 PM
5:16 AM - 6:46 AM

Action Rating: 5 out of 5

Frost Advisory issued April 16 at 10:45AM PDT until April 17 at 9:00AM PDT by NWS Portland OR

Effective: Thu April 16, 2026, 10:45 AM
Expires: Fri April 17, 2026, 1:00 AM

* WHAT...Temperatures of 32 to 36 degrees will result in frost formation. * WHERE...Northern and Central Coast Range Valleys and Mountains of Oregon, Eastern Portland/Vancouver Metro, Lower Columbia River and Cowlitz River Valleys, Central Willamette Valley, Tillamook County Coast, Central Coast of Oregon, Tualatin Valley, Portland West Hills and Chehalem Mountain, Willapa Hills, North Clark County Lowlands, and South Washington Cascade Foothills. * WHEN...From 1 AM to 9 AM PDT Friday. * IMPACTS...Frost could harm sensitive outdoor vegetation.

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 or 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.


Freeze Warning issued April 16 at 10:45AM PDT until April 17 at 9:00AM PDT by NWS Portland OR

Effective: Thu April 16, 2026, 10:45 AM
Expires: Fri April 17, 2026, 1:00 AM

* WHAT...Sub-freezing temperatures as low as 28 degrees expected. * WHERE...South Willamette Valley, West Columbia River Gorge of Oregon above 500 ft, and Clackamas County Cascade Foothills. * WHEN...From 1 AM to 9 AM PDT Friday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

To prevent water pipes from freezing; wrap or drain or allow them to drip slowly. 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.


Freeze Warning issued April 16 at 10:45AM PDT until April 17 at 9:00AM PDT by NWS Portland OR

Effective: Thu April 16, 2026, 10:45 AM
Expires: Fri April 17, 2026, 1:00 AM

* WHAT...Sub-freezing temperatures as low as 25 degrees expected. * WHERE...Upper Hood River Valley, Cascade Foothills of Marion and Linn Counties, and Lane County Cascade Foothills. * WHEN...From 1 AM to 9 AM PDT Friday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

To prevent water pipes from freezing; wrap or drain or allow them to drip slowly. 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.


Thursday, April 16, 2026

Weather Forecast

Patchy rain nearby
54°F
36.9°F
44.9°F
77%
0.01 in
85%
0%
9.2 mph
1.3


Air Quality

AQI: 1 - Good
PM2.5: 5.43 μg/m3
PM10: 7.94 μg/m3
Carbon Monoxide: 169.33 μg/m3
Nitrogen Dioxide: 3.62 μg/m3
Sulphur Dioxide: 1.43 μg/m3
Ozone: 71.76 μg/m3

Astronomical

Sunrise: 6:25 AM
Sun Transit: 1:11 PM
Sunset: 7:59 PM
Daylight: 13 hrs 35 mins
Moonrise: 5:46 AM
Moon Transit: 12:31 AM
Moonset: 7:34 PM
Moon Phase: New
Moon Illumination: 0.8%

Best Times for Fishing or Hunting

Major Periods

7:54 PM - 10:24 PM
12:01 AM - 2:31 PM

Minor Periods

7:04 PM - 8:34 PM
5:16 AM - 6:46 AM

Action Rating: 5 out of 5

Friday, April 17, 2026

Weather Forecast

Partly Cloudy
56.3°F
41.2°F
48.2°F
69%
0 in
0%
0%
3.6 mph
1.4


Air Quality

AQI: 1 - Good
PM2.5: 9.83 μg/m3
PM10: 13.24 μg/m3
Carbon Monoxide: 198.73 μg/m3
Nitrogen Dioxide: 11.8 μg/m3
Sulphur Dioxide: 1.97 μg/m3
Ozone: 58.44 μg/m3

Astronomical

Sunrise: 6:23 AM
Sun Transit: 1:11 PM
Sunset: 8:01 PM
Daylight: 13 hrs 38 mins
Moonrise: 6:09 AM
Moon Transit: 1:24 PM
Moonset: 8:57 PM
Moon Phase: New
Moon Illumination: 4.1%

Best Times for Fishing or Hunting

Major Periods

8:47 PM - 11:17 PM
12:54 AM - 3:24 PM

Minor Periods

8:27 PM - 9:57 PM
5:39 AM - 7:09 AM

Action Rating: 4 out of 5

Saturday, April 18, 2026

Weather Forecast

Partly Cloudy
66.9°F
42.8°F
55°F
65%
0 in
0%
0%
3.1 mph
1.6


Air Quality

AQI: 1 - Good
PM2.5: 11.71 μg/m3
PM10: 15.01 μg/m3
Carbon Monoxide: 294.81 μg/m3
Nitrogen Dioxide: 21.83 μg/m3
Sulphur Dioxide: 2.61 μg/m3
Ozone: 51.8 μg/m3

Astronomical

Sunrise: 6:21 AM
Sun Transit: 1:11 PM
Sunset: 8:02 PM
Daylight: 13 hrs 41 mins
Moonrise: 6:36 AM
Moon Transit: 2:21 PM
Moonset: 10:23 PM
Moon Phase: New
Moon Illumination: 1.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:51 PM - 4:21 PM

Minor Periods

9:53 PM - 11:23 PM
6:06 AM - 7:36 AM

Action Rating: 4 out of 5

Sunday, April 19, 2026

Weather Forecast

Overcast
72.1°F
53.8°F
62.2°F
63%
0 in
0%
0%
4.7 mph
1.1


Air Quality

AQI: 1 - Good
PM2.5: 4.93 μg/m3
PM10: 6.53 μg/m3
Carbon Monoxide: 173.31 μg/m3
Nitrogen Dioxide: 10.31 μg/m3
Sulphur Dioxide: 1.72 μg/m3
Ozone: 44.6 μg/m3

Astronomical

Sunrise: 6:20 AM
Sun Transit: 1:10 PM
Sunset: 8:03 PM
Daylight: 13 hrs 44 mins
Moonrise: 7:12 AM
Moon Transit: 3:22 PM
Moonset: 11:46 PM
Moon Phase: Waxing Crescent
Moon Illumination: 4.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:52 PM - 5:22 PM

Minor Periods

12:00 AM - 12:00 AM
6:42 AM - 8:12 AM

Action Rating: 3 out of 5

Monday, April 20, 2026

Weather Forecast

Partly Cloudy
71.5°F
47.8°F
57.7°F
75%
0 in
0%
0%
5.6 mph
1.4


Air Quality

AQI: 1 - Good
PM2.5: 4.7 μg/m3
PM10: 4.9 μg/m3
Carbon Monoxide: 223.04 μg/m3
Nitrogen Dioxide: 16.44 μg/m3
Sulphur Dioxide: 2.28 μg/m3
Ozone: 22.92 μg/m3

Astronomical

Sunrise: 6:18 AM
Sun Transit: 1:10 PM
Sunset: 8:05 PM
Daylight: 13 hrs 47 mins
Moonrise: 7:59 AM
Moon Transit: 4:27 PM
Moonset: 12:46 AM
Moon Phase: Waxing Crescent
Moon Illumination: 10.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:57 PM - 6:27 PM

Minor Periods

7:29 AM - 8:59 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

The times presented here are based upon the solunar theory, which is the idea that the movements of fish and other animals are affected by the location of the sun and moon. The major periods are believed to be the times of the greatest animal activity and occur when the moon is directly overhead or underfoot (lunar transits). The minor periods also see increased activity and occur when the moon is rising or setting. The strongest activity occurs during full or new moons, and the weakest during quarter or three quarter moons. This is indicated by the Action Rating.

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