Water Temperature of the Tualatin River in West Linn, OR

Current Water Temperature

60.1°F

Measurement Time: Tuesday, May 20, 2025, 2:00 PM PDT

Temperature Locations

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Local Points of Interest

Oswego Dam

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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 / 46 meters

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 (7.0 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 (12.0 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 (16.0 mi)
Clackamas River, Estacada, OR (16.6 mi)

Weather for West Linn, Oregon

Current Weather

55°F
Overcast
Conditions: Overcast
Humidity: 59%
Feels Like: 55.1°F
Wind: NNW 3.4 mph
Wind Gusts: 6.3 mph
Pressure: 30.29 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Moderate rain
Tue
H: 60°F
L: 48°F
Patchy rain nearby
Wed
H: 64°F
L: 41°F
Patchy rain nearby
Thu
H: 67°F
L: 47°F
Patchy rain nearby
Fri
H: 60°F
L: 46°F
Patchy rain nearby
Sat
H: 70°F
L: 49°F

Air Quality

PM2.5: 9.62 μg/m3
PM10: 12.58 μg/m3
Carbon Monoxide: 331.15 μg/m3
Nitrogen Dioxide: 18.13 μg/m3
Sulphur Dioxide: 2.22 μg/m3
Ozone: 49 μg/m3

Astronomical

Sunrise: 5:35 AM
Sun Transit: 1:07 PM
Sunset: 8:41 PM
Daylight: 15 hrs 6 mins
Moonrise: 2:23 AM
Moon Transit: 7:32 AM
Moonset: 12:54 AM
Moon Phase: Last Quarter
Moon Illumination: 32.7%

Best Times for Fishing or Hunting

Major Periods

7:02 AM - 9:32 AM
2:55 PM - 5:25 PM

Minor Periods

12:24 AM - 1:54 PM
1:53 AM - 3:23 AM

Action Rating: 2 out of 5

Frost Advisory issued May 20 at 2:45PM PDT until May 21 at 8:00AM PDT by NWS Portland OR

Effective: Tue May 20, 2025, 2:45 PM
Expires: Wed May 21, 2025, 8:00 AM

* WHAT...Temperatures as low as 35 will result in areas of frost. * WHERE...Upper Hood River Valley. * WHEN...From midnight tonight to 8 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.
Tuesday, May 20, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 51.4°F
Average Humidity: 77%
Chance of Rain: 88%
Wind: 5.6 mph
UV Index: 1.2

Air Quality

AQI: 1 - Good
PM2.5: 12.23 μg/m3
PM10: 16.94 μg/m3
Carbon Monoxide: 354.16 μg/m3
Nitrogen Dioxide: 16.92 μg/m3
Sulphur Dioxide: 1.64 μg/m3
Ozone: 58.28 μg/m3

Astronomical

Sunrise: 5:35 AM
Sun Transit: 1:07 PM
Sunset: 8:41 PM
Daylight: 15 hrs 6 mins
Moonrise: 2:23 AM
Moon Transit: 7:32 AM
Moonset: 12:54 AM
Moon Phase: Last Quarter
Moon Illumination: 32.7%

Best Times for Fishing or Hunting

Major Periods

7:02 AM - 9:32 AM
2:55 PM - 5:25 PM

Minor Periods

12:24 AM - 1:54 PM
1:53 AM - 3:23 AM

Action Rating: 2 out of 5

Wednesday, May 21, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 52.1°F
Average Humidity: 73%
Chance of Rain: 84%
Wind: 7.2 mph
UV Index: 1.4

Air Quality

AQI: 1 - Good
PM2.5: 9.11 μg/m3
PM10: 11.68 μg/m3
Carbon Monoxide: 339.26 μg/m3
Nitrogen Dioxide: 17.59 μg/m3
Sulphur Dioxide: 1.79 μg/m3
Ozone: 57.85 μg/m3

Astronomical

Sunrise: 5:34 AM
Sun Transit: 1:07 PM
Sunset: 8:42 PM
Daylight: 15 hrs 8 mins
Moonrise: 2:43 AM
Moon Transit: 8:19 AM
Moonset: 2:10 PM
Moon Phase: Last Quarter
Moon Illumination: 22.6%

Best Times for Fishing or Hunting

Major Periods

7:49 AM - 10:19 AM
12:00 AM - 12:00 AM

Minor Periods

1:40 PM - 3:10 PM
2:13 AM - 3:43 AM

Action Rating: 2 out of 5

Thursday, May 22, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 53.3°F
Average Humidity: 82%
Chance of Rain: 88%
Wind: 2.9 mph
UV Index: 0

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: 5:33 AM
Sun Transit: 1:07 PM
Sunset: 8:43 PM
Daylight: 15 hrs 10 mins
Moonrise: 3:02 AM
Moon Transit: 9:07 AM
Moonset: 3:27 PM
Moon Phase: Waning Crescent
Moon Illumination: 13.9%

Best Times for Fishing or Hunting

Major Periods

8:37 AM - 11:07 AM
9:16 AM - 11:46 AM

Minor Periods

2:57 PM - 4:27 PM
2:32 AM - 4:02 AM

Action Rating: 2 out of 5

Friday, May 23, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 53.3°F
Average Humidity: 74%
Chance of Rain: 86%
Wind: 11 mph
UV Index: 3

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: 5:32 AM
Sun Transit: 1:07 PM
Sunset: 8:44 PM
Daylight: 15 hrs 12 mins
Moonrise: 3:21 AM
Moon Transit: 12:00 AM
Moonset: 4:48 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
5:21 PM - 7:51 PM

Minor Periods

4:18 PM - 5:48 PM
2:51 AM - 4:21 AM

Action Rating: 2 out of 5

Saturday, May 24, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 58.4°F
Average Humidity: 66%
Chance of Rain: 89%
Wind: 3.4 mph
UV Index: 3

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: 5:31 AM
Sun Transit: 1:07 PM
Sunset: 8:45 PM
Daylight: 15 hrs 14 mins
Moonrise: 3:43 AM
Moon Transit: 10:48 AM
Moonset: 6:12 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.4%

Best Times for Fishing or Hunting

Major Periods

6:14 PM - 8:44 PM
10:18 AM - 12:48 AM

Minor Periods

5:42 PM - 7:12 PM
3:13 AM - 4:43 AM

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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