Water Temperature of the Tualatin River in West Linn, OR

Current Water Temperature

55.2°F 12.9°C
Cold Thermal Gear Required
55.2°F
Frigid < 50°F
Cold 50°–60°
Cool 60°–70°
Comfortable 70°–80°
Warm 80°+

Cold shock risk with rapid dexterity loss (10–15 mins). Wetsuit or drysuit strongly advised for any immersion.

Measurement Time: Thursday, November 12, 2026, 11:00 PM PST

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

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

50.4°F
Overcast
Conditions: Overcast
Humidity: 77%
Feels Like: 47.1°F
Wind: N 3.5 mph
Wind Gusts: 3.8 mph
Pressure: 29.23 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 9.1 mi
UV Index: 0

Five-Day Weather Forecast

Moderate Drizzle
Fri
H: 55°F
L: 48°F
Moderate Drizzle
Sat
H: 55°F
L: 47°F
Slight Rain
Sun
H: 54°F
L: 49°F
Light Drizzle
Mon
H: 50°F
L: 43°F
Moderate Drizzle
Tue
H: 54°F
L: 42°F

Air Quality

EPA Index 3 • Unhealthy for Sensitive Groups

Members of sensitive groups may experience health effects. The general public is less likely to be affected.

PM2.5
6.4 μg/m³
Good
PM10
7.1 μg/m³
Good
Ozone (O3)
36 μg/m³
Photochemical
NO2
18.3 μg/m³
Nitrogen Dioxide
SO2
1.6 μg/m³
Sulfur Dioxide
CO
229 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 36m daylight
Sunrise 7:07 AM
Solar Noon 11:55 AM
Sunset 4:43 PM
Moon
Waxing Crescent • 13%
Moonrise 11:31 AM
Transit 3:38 PM
Moonset 7:48 PM

Best Times for Fishing or Hunting

Major Periods

2:43 AM - 5:13 AM
3:08 PM - 5:38 PM

Minor Periods

11:01 AM - 12:31 PM
7:18 PM - 8:48 PM
Action Rating:
Fair Action 2/5
Friday, November 13, 2026

Weather Forecast

Conditions: Moderate Drizzle
Average Temperature: 51.6°F
Average Humidity: 80%
Chance of Rain: 91%
Wind: 16.5 mph
UV Index: 0.8

Air Quality

EPA Index 3 • Unhealthy for Sensitive Groups
PM2.5
15.2 μg/m³
Moderate
PM10
16.1 μg/m³
Good
Ozone (O3)
45.5 μg/m³
Photochemical
NO2
13.7 μg/m³
Nitrogen Dioxide
SO2
1.1 μg/m³
Sulfur Dioxide
CO
220.5 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 36m daylight
Sunrise 7:07 AM
Solar Noon 11:55 AM
Sunset 4:43 PM
Moon
Waxing Crescent • 13%
Moonrise 11:31 AM
Transit 3:38 PM
Moonset 7:48 PM

Best Times for Fishing or Hunting

Major Periods

2:43 AM - 5:13 AM
3:08 PM - 5:38 PM

Minor Periods

11:01 AM - 12:31 PM
7:18 PM - 8:48 PM
Action Rating:
Fair Action 2/5
Saturday, November 14, 2026

Weather Forecast

Conditions: Moderate Drizzle
Average Temperature: 51.6°F
Average Humidity: 82%
Chance of Rain: 92%
Wind: 15.3 mph
UV Index: 2

Air Quality

EPA Index 2 • Moderate
PM2.5
6.1 μg/m³
Good
PM10
6.5 μg/m³
Good
Ozone (O3)
59.2 μg/m³
Photochemical
NO2
5.5 μg/m³
Nitrogen Dioxide
SO2
0.6 μg/m³
Sulfur Dioxide
CO
166 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 34m daylight
Sunrise 7:08 AM
Solar Noon 11:55 AM
Sunset 4:42 PM
Moon
Waxing Crescent • 21%
Moonrise 12:06 PM
Transit 4:26 PM
Moonset 8:53 PM

Best Times for Fishing or Hunting

Major Periods

3:32 AM - 6:02 AM
3:56 PM - 6:26 PM

Minor Periods

11:36 AM - 1:06 PM
8:23 PM - 9:53 PM
Action Rating:
Fair Action 2/5
Sunday, November 15, 2026

Weather Forecast

Conditions: Slight Rain
Average Temperature: 51.1°F
Average Humidity: 84%
Chance of Rain: 92%
Wind: 12.4 mph
UV Index: 1.7

Air Quality

EPA Index 1 • Good
PM2.5
7.5 μg/m³
Good
PM10
8.4 μg/m³
Good
Ozone (O3)
61.8 μg/m³
Photochemical
NO2
5.1 μg/m³
Nitrogen Dioxide
SO2
0.5 μg/m³
Sulfur Dioxide
CO
151.5 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 31m daylight
Sunrise 7:10 AM
Solar Noon 11:55 AM
Sunset 4:41 PM
Moon
Waxing Crescent • 31%
Moonrise 12:35 PM
Transit 5:12 PM
Moonset 9:59 PM

Best Times for Fishing or Hunting

Major Periods

4:19 AM - 6:49 AM
4:42 PM - 7:12 PM

Minor Periods

12:05 PM - 1:35 PM
9:29 PM - 10:59 PM
Action Rating:
Very Good 4/5
Monday, November 16, 2026

Weather Forecast

Conditions: Light Drizzle
Average Temperature: 46.9°F
Average Humidity: 83%
Chance of Rain: 54%
Wind: 4.9 mph
UV Index: 2.1

Air Quality

EPA Index 2 • Moderate
PM2.5
10.7 μg/m³
Good
PM10
11.5 μg/m³
Good
Ozone (O3)
49.5 μg/m³
Photochemical
NO2
8.1 μg/m³
Nitrogen Dioxide
SO2
0.7 μg/m³
Sulfur Dioxide
CO
191.9 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 29m daylight
Sunrise 7:11 AM
Solar Noon 11:55 AM
Sunset 4:40 PM
Moon
First Quarter • 42%
Moonrise 12:57 PM
Transit 5:56 PM
Moonset 11:06 PM

Best Times for Fishing or Hunting

Major Periods

5:05 AM - 7:35 AM
5:26 PM - 7:56 PM

Minor Periods

12:27 PM - 1:57 PM
10:36 PM - 12:06 AM
Action Rating:
Good Action 3/5
Tuesday, November 17, 2026

Weather Forecast

Conditions: Moderate Drizzle
Average Temperature: 47.3°F
Average Humidity: 71%
Chance of Rain: 64%
Wind: 8.2 mph
UV Index: 2.5

Air Quality

EPA Index 2 • Moderate
PM2.5
14 μg/m³
Moderate
PM10
15.3 μg/m³
Good
Ozone (O3)
42 μg/m³
Photochemical
NO2
8.8 μg/m³
Nitrogen Dioxide
SO2
0.7 μg/m³
Sulfur Dioxide
CO
247.7 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 27m daylight
Sunrise 7:12 AM
Solar Noon 11:55 AM
Sunset 4:39 PM
Moon
First Quarter • 54%
Moonrise 1:17 PM
Transit 6:39 PM
Moonset 1:42 AM

Best Times for Fishing or Hunting

Major Periods

5:48 AM - 8:18 AM
6:09 PM - 8:39 PM

Minor Periods

1:12 AM - 2:42 AM
12:47 PM - 2:17 PM
Action Rating:
Fair Action 2/5
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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