Water Temperature of the Tualatin River in West Linn, OR

Current Water Temperature

62.6°F

Measurement Time: Saturday, May 16, 2026, 2:00 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

46.9°F
Light rain
Light rain
45.3°F
49.2°F
90%
W 4 mph
8.3 mph
48.9°F
44.1°F
0 in
100%
9 mi
1025 mbar
0

Five Day Weather Forecast

Moderate rain
Sat
H: 55°F
L: 46°F
Patchy rain nearby
Sun
H: 64°F
L: 41°F
Sunny
Mon
H: 69°F
L: 43°F
Overcast
Tue
H: 65°F
L: 43°F
Partly Cloudy
Wed
H: 69°F
L: 41°F

Air Quality

AQI: 1 - Good
PM2.5: 7.05 μg/m3
PM10: 10.05 μg/m3
Carbon Monoxide: 166.85 μg/m3
Nitrogen Dioxide: 8.45 μg/m3
Sulphur Dioxide: 1.45 μg/m3
Ozone: 35 μg/m3

Astronomical

Sunrise: 5:39 AM
Sun Transit: 1:07 PM
Sunset: 8:36 PM
Daylight: 14 hrs 57 mins
Moonrise: 5:03 AM
Moon Transit: 1:02 PM
Moonset: 9:16 PM
Moon Phase: New
Moon Illumination: 2.0%

Best Times for Fishing or Hunting

Major Periods

8:30 PM - 11:00 PM
12:32 AM - 3:02 PM

Minor Periods

8:46 PM - 10:16 PM
4:33 AM - 6:03 AM

Action Rating: 6 out of 5

Winter Weather Advisory issued May 16 at 10:34AM PDT until May 16 at 11:00PM PDT by NWS Portland OR

Effective: Sat May 16, 2026, 10:34 AM
Expires: Sat May 16, 2026, 11:00 PM

* WHAT...Snow expected above 4000 feet. Storm total snow accumulations between 4 to 8 inches, highest amounts at Government Camp, and 12 to 18 inches of snow above 5000 feet. Winds gusting as high as 35 mph. * WHERE...South Washington Cascades and the Northern and Central Cascades of Oregon. * WHEN...Until 11 PM PDT this evening. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. * ADDITIONAL DETAILS...Additional snowfall of most likely 1 to 4 inches after 11 AM today. There is a 20% chance of an additional 6 inches or more at pass-level.

Have a winter emergency driving kit readily available. Common items to include: flashlight, batteries, blankets, a shovel, water, non-perishable food items, tire chains, etc. Be aware that walking surfaces may be slick. Walk with extra care. For the latest road conditions and chain restrictions in Oregon, call 5 1 1, or visit: www.tripcheck.com. For the latest road conditions and chain restrictions in Washington, visit: wsdot.com/travel/real-time/map
Saturday, May 16, 2026

Weather Forecast

Moderate rain
55.4°F
46.4°F
50.4°F
76%
0.25 in
85%
0%
8.9 mph
4.4


Air Quality

AQI: 1 - Good
PM2.5: 4.72 μg/m3
PM10: 6.69 μg/m3
Carbon Monoxide: 143.17 μg/m3
Nitrogen Dioxide: 2.8 μg/m3
Sulphur Dioxide: 1.2 μg/m3
Ozone: 63.64 μg/m3

Astronomical

Sunrise: 5:39 AM
Sun Transit: 1:07 PM
Sunset: 8:36 PM
Daylight: 14 hrs 57 mins
Moonrise: 5:03 AM
Moon Transit: 1:02 PM
Moonset: 9:16 PM
Moon Phase: New
Moon Illumination: 2.0%

Best Times for Fishing or Hunting

Major Periods

8:30 PM - 11:00 PM
12:32 AM - 3:02 PM

Minor Periods

8:46 PM - 10:16 PM
4:33 AM - 6:03 AM

Action Rating: 6 out of 5

Sunday, May 17, 2026

Weather Forecast

Patchy rain nearby
63.5°F
40.8°F
51.2°F
68%
0.01 in
82%
0%
4.7 mph
6.1


Air Quality

AQI: 1 - Good
PM2.5: 7.35 μg/m3
PM10: 10.23 μg/m3
Carbon Monoxide: 155.57 μg/m3
Nitrogen Dioxide: 5.35 μg/m3
Sulphur Dioxide: 1.45 μg/m3
Ozone: 52.48 μg/m3

Astronomical

Sunrise: 5:38 AM
Sun Transit: 1:07 PM
Sunset: 8:37 PM
Daylight: 14 hrs 59 mins
Moonrise: 5:45 AM
Moon Transit: 2:06 PM
Moonset: 10:37 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:36 PM - 4:06 PM

Minor Periods

10:07 PM - 11:37 PM
5:15 AM - 6:45 AM

Action Rating: 4 out of 5

Monday, May 18, 2026

Weather Forecast

Sunny
68.9°F
43.4°F
54.6°F
63%
0 in
0%
0%
8.1 mph
6.8


Air Quality

AQI: 1 - Good
PM2.5: 9.51 μg/m3
PM10: 12.87 μg/m3
Carbon Monoxide: 164.53 μg/m3
Nitrogen Dioxide: 7.27 μg/m3
Sulphur Dioxide: 1.55 μg/m3
Ozone: 53.72 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 1:07 PM
Sunset: 8:38 PM
Daylight: 15 hrs 1 mins
Moonrise: 6:42 AM
Moon Transit: 3:13 PM
Moonset: 11:45 PM
Moon Phase: New
Moon Illumination: 2.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:43 PM - 5:13 PM

Minor Periods

12:00 AM - 12:00 AM
6:12 AM - 7:42 AM

Action Rating: 3 out of 5

Tuesday, May 19, 2026

Weather Forecast

Overcast
65.4°F
43.4°F
53.4°F
71%
0 in
0%
0%
6.5 mph
6.6


Air Quality

AQI: 1 - Good
PM2.5: 8.22 μg/m3
PM10: 10.55 μg/m3
Carbon Monoxide: 158.88 μg/m3
Nitrogen Dioxide: 8.1 μg/m3
Sulphur Dioxide: 1.54 μg/m3
Ozone: 54.24 μg/m3

Astronomical

Sunrise: 5:36 AM
Sun Transit: 1:07 PM
Sunset: 8:39 PM
Daylight: 15 hrs 4 mins
Moonrise: 7:52 AM
Moon Transit: 4:19 PM
Moonset: 12:45 AM
Moon Phase: Waxing Crescent
Moon Illumination: 7.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:49 PM - 6:19 PM

Minor Periods

7:22 AM - 8:52 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, May 20, 2026

Weather Forecast

Partly Cloudy
69.2°F
41.2°F
55.5°F
66%
0 in
0%
0%
5.1 mph
7.6


Air Quality

AQI: 1 - Good
PM2.5: 6.11 μg/m3
PM10: 7.73 μg/m3
Carbon Monoxide: 144.18 μg/m3
Nitrogen Dioxide: 8.73 μg/m3
Sulphur Dioxide: 1.39 μg/m3
Ozone: 46.85 μg/m3

Astronomical

Sunrise: 5:35 AM
Sun Transit: 1:07 PM
Sunset: 8:40 PM
Daylight: 15 hrs 6 mins
Moonrise: 9:12 AM
Moon Transit: 5:21 PM
Moonset: 12:37 AM
Moon Phase: Waxing Crescent
Moon Illumination: 14.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:51 PM - 7:21 PM

Minor Periods

8:42 AM - 10:12 AM
12:07 AM - 1:37 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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