Water Temperature of the Tualatin River in West Linn, OR

Current Water Temperature

72.0°F

Measurement Time: Saturday, July 18, 2026, 4:00 AM 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

69.1°F
Sunny
Sunny
69.1°F
77.1°F
59%
NNW 5.1 mph
5.9 mph
74.1°F
58.6°F
0 in
25%
9 mi
1021 mbar
7.3

Five Day Weather Forecast

Sunny
Sat
H: 86°F
L: 54°F
Sunny
Sun
H: 88°F
L: 53°F
Sunny
Mon
H: 89°F
L: 60°F
Sunny
Tue
H: 98°F
L: 64°F
Sunny
Wed
H: 98°F
L: 64°F

Air Quality

AQI: 1 - Good
PM2.5: 4.8 μg/m3
PM10: 6.2 μg/m3
Carbon Monoxide: 104 μg/m3
Nitrogen Dioxide: 1.3 μg/m3
Sulphur Dioxide: 0.8 μg/m3
Ozone: 76 μg/m3

Astronomical

Sunrise: 5:40 AM
Sun Transit: 1:17 PM
Sunset: 8:53 PM
Daylight: 15 hrs 13 mins
Moonrise: 10:58 AM
Moon Transit: 5:10 PM
Moonset: 11:09 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:40 PM - 7:10 PM

Minor Periods

12:00 AM - 12:00 AM
10:28 AM - 11:58 AM

Action Rating: 2 out of 5

Saturday, July 18, 2026

Weather Forecast

Sunny
85.8°F
54.1°F
68.4°F
64%
0 in
4%
0%
9.4 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 4.77 μg/m3
PM10: 5.83 μg/m3
Carbon Monoxide: 106.08 μg/m3
Nitrogen Dioxide: 5.01 μg/m3
Sulphur Dioxide: 0.68 μg/m3
Ozone: 58.75 μg/m3

Astronomical

Sunrise: 5:40 AM
Sun Transit: 1:17 PM
Sunset: 8:53 PM
Daylight: 15 hrs 13 mins
Moonrise: 10:58 AM
Moon Transit: 5:10 PM
Moonset: 11:09 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:40 PM - 7:10 PM

Minor Periods

12:00 AM - 12:00 AM
10:28 AM - 11:58 AM

Action Rating: 2 out of 5

Sunday, July 19, 2026

Weather Forecast

Sunny
87.9°F
52.7°F
69.6°F
55%
0 in
2%
0%
7.2 mph
8.5


Air Quality

AQI: 1 - Good
PM2.5: 6.4 μg/m3
PM10: 7.88 μg/m3
Carbon Monoxide: 108.33 μg/m3
Nitrogen Dioxide: 4.02 μg/m3
Sulphur Dioxide: 0.77 μg/m3
Ozone: 72.04 μg/m3

Astronomical

Sunrise: 5:41 AM
Sun Transit: 1:17 PM
Sunset: 8:53 PM
Daylight: 15 hrs 12 mins
Moonrise: 12:09 AM
Moon Transit: 5:53 PM
Moonset: 12:09 AM
Moon Phase: Waxing Crescent
Moon Illumination: 22.6%

Best Times for Fishing or Hunting

Major Periods

12:32 AM - 3:02 AM
5:23 PM - 7:53 PM

Minor Periods

11:39 AM - 1:09 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Monday, July 20, 2026

Weather Forecast

Sunny
89.1°F
59.7°F
72.6°F
50%
0 in
4%
0%
3.1 mph
7.3


Air Quality

AQI: 1 - Good
PM2.5: 8.7 μg/m3
PM10: 10.11 μg/m3
Carbon Monoxide: 128.29 μg/m3
Nitrogen Dioxide: 6.38 μg/m3
Sulphur Dioxide: 0.93 μg/m3
Ozone: 71.29 μg/m3

Astronomical

Sunrise: 5:42 AM
Sun Transit: 1:17 PM
Sunset: 8:52 PM
Daylight: 15 hrs 10 mins
Moonrise: 1:18 PM
Moon Transit: 6:37 PM
Moonset: 12:27 AM
Moon Phase: Waxing Crescent
Moon Illumination: 32.7%

Best Times for Fishing or Hunting

Major Periods

1:15 AM - 3:45 AM
6:07 PM - 8:37 PM

Minor Periods

12:48 AM - 2:18 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Tuesday, July 21, 2026

Weather Forecast

Sunny
98.2°F
63.5°F
80°F
40%
0 in
1%
0%
6.3 mph
8.7


Air Quality

AQI: 1 - Good
PM2.5: 8.52 μg/m3
PM10: 10.91 μg/m3
Carbon Monoxide: 123.81 μg/m3
Nitrogen Dioxide: 4.59 μg/m3
Sulphur Dioxide: 0.83 μg/m3
Ozone: 70.21 μg/m3

Astronomical

Sunrise: 5:43 AM
Sun Transit: 1:17 PM
Sunset: 8:51 PM
Daylight: 15 hrs 8 mins
Moonrise: 2:27 PM
Moon Transit: 7:21 PM
Moonset: 12:46 AM
Moon Phase: First Quarter
Moon Illumination: 43.7%

Best Times for Fishing or Hunting

Major Periods

1:59 AM - 4:29 AM
6:51 PM - 9:21 PM

Minor Periods

1:57 PM - 3:27 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, July 22, 2026

Weather Forecast

Sunny
97.5°F
63.6°F
80.3°F
40%
0 in
1%
0%
4.5 mph
9


Air Quality

AQI: 1 - Good
PM2.5: 10.38 μg/m3
PM10: 14 μg/m3
Carbon Monoxide: 129.5 μg/m3
Nitrogen Dioxide: 7.27 μg/m3
Sulphur Dioxide: 0.88 μg/m3
Ozone: 46.67 μg/m3

Astronomical

Sunrise: 5:44 AM
Sun Transit: 1:17 PM
Sunset: 8:50 PM
Daylight: 15 hrs 6 mins
Moonrise: 3:34 PM
Moon Transit: 8:07 PM
Moonset: 12:07 AM
Moon Phase: First Quarter
Moon Illumination: 55.0%

Best Times for Fishing or Hunting

Major Periods

2:44 AM - 5:14 AM
7:37 PM - 10:07 PM

Minor Periods

3:04 PM - 4:34 PM
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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