Water Temperature of the Tualatin River in West Linn, OR

Current Water Temperature

32.0°F

Measurement Time: Thursday, September 24, 2026, 2:46 PM PDT

Temperature Locations

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Local Points of Interest

Oswego Dam

Tualatin River

Station Name: TUALATIN RIVER AT OSWEGO DAM, NEAR WEST LINN, OR
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 151 feet

Nearest Address:
967 SW Borland Rd
West Linn, OR 97068
Clackamas County

GPS Coordinates: 45.35650877, -122.6850937

Nearby Water Temperatures

Fanno Creek, Tigard, OR (4.7 mi)
Clackamas River, Oregon City, OR (5.5 mi)
Johnson Creek, Milwaukie, OR (7 mi)
Crystal Springs Creek, Portland, OR (8.4 mi)
Fanno Creek, Beaverton, OR (8.4 mi)
Chicken Creek, Sherwood, OR (8.5 mi)
Tualatin River, Beaverton, OR (10.7 mi)
Willamette River, Portland, OR (11.1 mi)
Johnson Creek, Portland, OR (12 mi)
Kelley Creek, Portland, OR (12.3 mi)
Beaverton Creek, Beaverton, OR (12.8 mi)
Willamette River, West Linn, OR (14.3 mi)
Johnson Creek, Gresham, OR (15.6 mi)
Rock Creek, Hillsboro, OR (16 mi)
Clackamas River, Estacada, OR (16.6 mi)

Weather for West Linn, Oregon

Current Weather

66°F
Chance Light Rain
Chance Light Rain
64%
SW 3 mph
53°F

Weather Forecast

Rain
Tonight
54°F - Rain
Showers And Thunderstorms
Friday
61°F - Showers And Thunderstorms
Patchy Fog
Friday Night
46°F - Patchy Fog
Patchy Fog then Partly Sunny
Saturday
64°F - Patchy Fog then Partly Sunny
Mostly Cloudy
Saturday Night
47°F - Mostly Cloudy
Mostly Sunny
Sunday
67°F - Mostly Sunny
Partly Cloudy
Sunday Night
47°F - Partly Cloudy
Partly Sunny
Monday
65°F - Partly Sunny
Mostly Cloudy then Slight Chance Light Rain
Monday Night
49°F - Mostly Cloudy then Slight Chance Light Rain
Slight Chance Light Rain
Tuesday
66°F - Slight Chance Light Rain
Slight Chance Light Rain
Tuesday Night
50°F - Slight Chance Light Rain
Mostly Sunny
Wednesday
68°F - Mostly Sunny
Mostly Cloudy
Wednesday Night
50°F - Mostly Cloudy
Partly Sunny
Thursday
67°F - Partly Sunny

Astronomical

Sunrise: 7:00 AM
Sun Transit: 1:02 PM
Sunset: 7:04 PM
Daylight: 12 hrs 3 mins
Moonrise: 6:12 PM
Moon Transit: 11:56 PM
Moonset: 4:42 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.0%

Best Times for Fishing or Hunting

Major Periods

6:34 AM - 9:04 AM
12:00 AM - 12:00 AM

Minor Periods

5:42 PM - 7:12 PM
4:12 AM - 5:42 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:00 AM
Sun Transit: 1:02 PM
Sunset: 7:04 PM
Daylight: 12 hrs 3 mins
Moonrise: 6:12 PM
Moon Transit: 11:56 PM
Moonset: 4:42 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.0%

Best Times for Fishing or Hunting

Major Periods

6:34 AM - 9:04 AM
12:00 AM - 12:00 AM

Minor Periods

5:42 PM - 7:12 PM
4:12 AM - 5:42 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:02 AM
Sun Transit: 1:02 PM
Sunset: 7:02 PM
Daylight: 12 hrs mins
Moonrise: 6:30 PM
Moon Transit: 12:00 AM
Moonset: 5:53 AM
Moon Phase: Full
Moon Illumination: 99.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
7:18 AM - 9:48 AM

Minor Periods

6:00 PM - 7:30 PM
5:23 AM - 6:53 AM

Action Rating: 6 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:02 AM
Sun Transit: 1:02 PM
Sunset: 7:02 PM
Daylight: 12 hrs mins
Moonrise: 6:30 PM
Moon Transit: 12:00 AM
Moonset: 5:53 AM
Moon Phase: Full
Moon Illumination: 99.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
7:18 AM - 9:48 AM

Minor Periods

6:00 PM - 7:30 PM
5:23 AM - 6:53 AM

Action Rating: 6 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:03 AM
Sun Transit: 1:01 PM
Sunset: 7:00 PM
Daylight: 11 hrs 57 mins
Moonrise: 6:49 PM
Moon Transit: 5:33 AM
Moonset: 7:05 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

5:03 AM - 7:33 AM
5:03 AM - 7:33 AM

Minor Periods

6:19 PM - 7:49 PM
6:35 AM - 8:05 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:03 AM
Sun Transit: 1:01 PM
Sunset: 7:00 PM
Daylight: 11 hrs 57 mins
Moonrise: 6:49 PM
Moon Transit: 5:33 AM
Moonset: 7:05 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

5:03 AM - 7:33 AM
5:03 AM - 7:33 AM

Minor Periods

6:19 PM - 7:49 PM
6:35 AM - 8:05 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:04 AM
Sun Transit: 1:01 PM
Sunset: 6:58 PM
Daylight: 11 hrs 54 mins
Moonrise: 7:09 PM
Moon Transit: 1:26 AM
Moonset: 8:20 AM
Moon Phase: Full
Moon Illumination: 97.3%

Best Times for Fishing or Hunting

Major Periods

12:56 AM - 3:26 AM
8:50 AM - 11:20 AM

Minor Periods

6:39 PM - 8:09 PM
7:50 AM - 9:20 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:04 AM
Sun Transit: 1:01 PM
Sunset: 6:58 PM
Daylight: 11 hrs 54 mins
Moonrise: 7:09 PM
Moon Transit: 1:26 AM
Moonset: 8:20 AM
Moon Phase: Full
Moon Illumination: 97.3%

Best Times for Fishing or Hunting

Major Periods

12:56 AM - 3:26 AM
8:50 AM - 11:20 AM

Minor Periods

6:39 PM - 8:09 PM
7:50 AM - 9:20 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:05 AM
Sun Transit: 1:01 PM
Sunset: 6:56 PM
Daylight: 11 hrs 51 mins
Moonrise: 7:33 PM
Moon Transit: 2:15 AM
Moonset: 9:37 AM
Moon Phase: Full
Moon Illumination: 92.4%

Best Times for Fishing or Hunting

Major Periods

1:45 AM - 4:15 AM
9:39 AM - 12:09 AM

Minor Periods

7:03 PM - 8:33 PM
9:07 AM - 10:37 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:05 AM
Sun Transit: 1:01 PM
Sunset: 6:56 PM
Daylight: 11 hrs 51 mins
Moonrise: 7:33 PM
Moon Transit: 2:15 AM
Moonset: 9:37 AM
Moon Phase: Full
Moon Illumination: 92.4%

Best Times for Fishing or Hunting

Major Periods

1:45 AM - 4:15 AM
9:39 AM - 12:09 AM

Minor Periods

7:03 PM - 8:33 PM
9:07 AM - 10:37 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:07 AM
Sun Transit: 1:00 PM
Sunset: 6:55 PM
Daylight: 11 hrs 48 mins
Moonrise: 8:04 PM
Moon Transit: 3:07 AM
Moonset: 10:58 AM
Moon Phase: Waning Gibbous
Moon Illumination: 85.4%

Best Times for Fishing or Hunting

Major Periods

2:37 AM - 5:07 AM
10:33 AM - 1:03 PM

Minor Periods

7:34 PM - 9:04 PM
10:28 AM - 11:58 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:07 AM
Sun Transit: 1:00 PM
Sunset: 6:55 PM
Daylight: 11 hrs 48 mins
Moonrise: 8:04 PM
Moon Transit: 3:07 AM
Moonset: 10:58 AM
Moon Phase: Waning Gibbous
Moon Illumination: 85.4%

Best Times for Fishing or Hunting

Major Periods

2:37 AM - 5:07 AM
10:33 AM - 1:03 PM

Minor Periods

7:34 PM - 9:04 PM
10:28 AM - 11:58 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:08 AM
Sun Transit: 1:00 PM
Sunset: 6:53 PM
Daylight: 11 hrs 45 mins
Moonrise: 8:45 PM
Moon Transit: 4:04 AM
Moonset: 12:18 AM
Moon Phase: Waning Gibbous
Moon Illumination: 76.5%

Best Times for Fishing or Hunting

Major Periods

3:34 AM - 6:04 AM
11:31 AM - 2:01 PM

Minor Periods

8:15 PM - 9:45 PM
11:48 AM - 1:18 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:08 AM
Sun Transit: 1:00 PM
Sunset: 6:53 PM
Daylight: 11 hrs 45 mins
Moonrise: 8:45 PM
Moon Transit: 4:04 AM
Moonset: 12:18 AM
Moon Phase: Waning Gibbous
Moon Illumination: 76.5%

Best Times for Fishing or Hunting

Major Periods

3:34 AM - 6:04 AM
11:31 AM - 2:01 PM

Minor Periods

8:15 PM - 9:45 PM
11:48 AM - 1:18 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:09 AM
Sun Transit: 1:00 PM
Sunset: 6:51 PM
Daylight: 11 hrs 42 mins
Moonrise: 9:37 PM
Moon Transit: 5:04 AM
Moonset: 1:33 PM
Moon Phase: Waning Gibbous
Moon Illumination: 66.3%

Best Times for Fishing or Hunting

Major Periods

4:34 AM - 7:04 AM
12:33 AM - 3:03 PM

Minor Periods

9:07 PM - 10:37 PM
1:03 PM - 2:33 PM

Action Rating: 3 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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