Water Temperature of the Tualatin River in West Linn, OR

Current Water Temperature

64.9°F

Measurement Time: Monday, May 25, 2026, 9:00 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

50.2°F
Overcast
Overcast
49.5°F
49.9°F
89%
S 3.4 mph
5 mph
48.8°F
46.8°F
0 in
100%
9 mi
1011 mbar
0

Five Day Weather Forecast

Patchy rain nearby
Tue
H: 61°F
L: 47°F
Overcast
Wed
H: 68°F
L: 45°F
Partly Cloudy
Thu
H: 78°F
L: 48°F
Patchy rain nearby
Fri
H: 58°F
L: 48°F
Patchy rain nearby
Sat
H: 66°F
L: 46°F

Air Quality

AQI: 1 - Good
PM2.5: 2.85 μg/m3
PM10: 3.55 μg/m3
Carbon Monoxide: 123.85 μg/m3
Nitrogen Dioxide: 2.35 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 62 μg/m3

Astronomical

Sunrise: 5:30 AM
Sun Transit: 1:07 PM
Sunset: 8:47 PM
Daylight: 15 hrs 17 mins
Moonrise: 4:32 PM
Moon Transit: 10:00 PM
Moonset: 2:59 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.9%

Best Times for Fishing or Hunting

Major Periods

4:39 AM - 7:09 AM
12:00 AM - 12:00 AM

Minor Periods

4:02 PM - 5:32 PM
2:29 AM - 3:59 AM

Action Rating: 2 out of 5

Tuesday, May 26, 2026

Weather Forecast

Patchy rain nearby
61.2°F
47°F
53.3°F
82%
0.1 in
92%
0%
5.1 mph
5.2


Air Quality

AQI: 1 - Good
PM2.5: 4.03 μg/m3
PM10: 5.16 μg/m3
Carbon Monoxide: 129.05 μg/m3
Nitrogen Dioxide: 3.38 μg/m3
Sulphur Dioxide: 1.32 μg/m3
Ozone: 58.76 μg/m3

Astronomical

Sunrise: 5:30 AM
Sun Transit: 1:07 PM
Sunset: 8:47 PM
Daylight: 15 hrs 17 mins
Moonrise: 4:32 PM
Moon Transit: 10:00 PM
Moonset: 2:59 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.9%

Best Times for Fishing or Hunting

Major Periods

4:39 AM - 7:09 AM
12:00 AM - 12:00 AM

Minor Periods

4:02 PM - 5:32 PM
2:29 AM - 3:59 AM

Action Rating: 2 out of 5

Wednesday, May 27, 2026

Weather Forecast

Overcast
67.7°F
44.7°F
54°F
83%
0 in
0%
0%
4.7 mph
6.8


Air Quality

AQI: 1 - Good
PM2.5: 7.92 μg/m3
PM10: 9.98 μg/m3
Carbon Monoxide: 142.41 μg/m3
Nitrogen Dioxide: 6.81 μg/m3
Sulphur Dioxide: 1.54 μg/m3
Ozone: 53.48 μg/m3

Astronomical

Sunrise: 5:29 AM
Sun Transit: 1:07 PM
Sunset: 8:48 PM
Daylight: 15 hrs 19 mins
Moonrise: 5:38 PM
Moon Transit: 10:42 PM
Moonset: 3:17 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 85.7%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

5:08 PM - 6:38 PM
2:47 AM - 4:17 AM

Action Rating: 3 out of 5

Thursday, May 28, 2026

Weather Forecast

Partly Cloudy
77.5°F
48.2°F
61.3°F
72%
0 in
0%
0%
5.6 mph
6.4


Air Quality

AQI: 1 - Good
PM2.5: 14.61 μg/m3
PM10: 18.02 μg/m3
Carbon Monoxide: 177.21 μg/m3
Nitrogen Dioxide: 11.09 μg/m3
Sulphur Dioxide: 1.82 μg/m3
Ozone: 58.52 μg/m3

Astronomical

Sunrise: 5:28 AM
Sun Transit: 1:08 PM
Sunset: 8:49 PM
Daylight: 15 hrs 20 mins
Moonrise: 6:46 PM
Moon Transit: 11:27 PM
Moonset: 3:37 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 92.7%

Best Times for Fishing or Hunting

Major Periods

6:04 AM - 8:34 AM
12:00 AM - 12:00 AM

Minor Periods

6:16 PM - 7:46 PM
3:07 AM - 4:37 AM

Action Rating: 2 out of 5

Friday, May 29, 2026

Weather Forecast

Patchy rain nearby
57.9°F
47.6°F
53.5°F
84%
0.06 in
89%
0%
8.7 mph
2.3


Air Quality

AQI: 1 - Good
PM2.5: 6.97 μg/m3
PM10: 9.57 μg/m3
Carbon Monoxide: 124.21 μg/m3
Nitrogen Dioxide: 3.32 μg/m3
Sulphur Dioxide: 1.4 μg/m3
Ozone: 58.28 μg/m3

Astronomical

Sunrise: 5:27 AM
Sun Transit: 1:08 PM
Sunset: 8:49 PM
Daylight: 15 hrs 22 mins
Moonrise: 7:53 PM
Moon Transit: 12:00 AM
Moonset: 4:01 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
6:50 AM - 9:20 AM

Minor Periods

7:23 PM - 8:53 PM
3:31 AM - 5:01 AM

Action Rating: 4 out of 5

Saturday, May 30, 2026

Weather Forecast

Patchy rain nearby
66°F
45.6°F
52.9°F
73%
0.01 in
89%
0%
7.2 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 12.16 μg/m3
PM10: 18.23 μg/m3
Carbon Monoxide: 136.54 μg/m3
Nitrogen Dioxide: 4.47 μg/m3
Sulphur Dioxide: 1.57 μg/m3
Ozone: 68.54 μg/m3

Astronomical

Sunrise: 5:27 AM
Sun Transit: 1:08 PM
Sunset: 8:50 PM
Daylight: 15 hrs 24 mins
Moonrise: 8:58 PM
Moon Transit: 12:14 AM
Moonset: 4:30 AM
Moon Phase: Full
Moon Illumination: 99.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
7:38 AM - 10:08 AM

Minor Periods

8:28 PM - 9:58 PM
4:00 AM - 5:30 AM

Action Rating: 5 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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