Water Temperature of the Willamette River in Portland, OR

Current Water Temperature

41.2°F

Measurement Time: Friday, January 23, 2026, 2:30 PM PST

Temperature Locations

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Local Points of Interest

Tom McCall Waterfront Park

Willamette River

Station Name: WILLAMETTE RIVER AT PORTLAND, OR
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 13 feet

Nearest Address:
SE Morrison Brg
Portland, OR 97204
Multnomah County

GPS Coordinates: 45.5175, -122.6691667

Nearby Water Temperatures

Crystal Springs Creek, Portland, OR (3.3 mi)
Johnson Creek, Milwaukie, OR (4.6 mi)
Fanno Creek, Beaverton, OR (7.6 mi)
Johnson Creek, Portland, OR (8.3 mi)
Kelley Creek, Portland, OR (8.7 mi)
Fanno Creek, Tigard, OR (8.9 mi)
Beaverton Creek, Beaverton, OR (8.9 mi)
Clackamas River, Oregon City, OR (10.5 mi)
Tualatin River , West Linn, OR (11.1 mi)
Johnson Creek, Gresham, OR (12.2 mi)
Rock Creek, Hillsboro, OR (12.8 mi)
Chicken Creek, Sherwood, OR (13.4 mi)
Tualatin River, Beaverton, OR (13.6 mi)
Tualatin River, Hillsboro, OR (15.6 mi)
Clackamas River, Estacada, OR (21.4 mi)

Weather for Portland, Oregon

Current Weather

37°F
Clear
Clear
33.6°F
33.2°F
52%
NNE 4.3 mph
7.8 mph
29.1°F
24.6°F
0 in
0%
9 mi
1027 mbar
0

Five Day Weather Forecast

Sunny
Fri
H: 48°F
L: 33°F
Sunny
Sat
H: 52°F
L: 32°F
Partly Cloudy
Sun
H: 47°F
L: 28°F
Cloudy
Mon
H: 46°F
L: 36°F
Patchy rain nearby
Tue
H: 49°F
L: 35°F

Air Quality

AQI: 2 - Moderate
PM2.5: 10.05 μg/m3
PM10: 10.25 μg/m3
Carbon Monoxide: 270.85 μg/m3
Nitrogen Dioxide: 20.25 μg/m3
Sulphur Dioxide: 2.45 μg/m3
Ozone: 48 μg/m3

Astronomical

Sunrise: 7:41 AM
Sun Transit: 12:22 AM
Sunset: 5:05 PM
Daylight: 9 hrs 24 mins
Moonrise: 9:53 AM
Moon Transit: 6:54 AM
Moonset: 10:53 PM
Moon Phase: Waxing Crescent
Moon Illumination: 24.4%

Best Times for Fishing or Hunting

Major Periods

6:24 AM - 8:54 AM
6:24 AM - 8:54 AM

Minor Periods

10:23 PM - 11:53 PM
9:23 AM - 10:53 AM

Action Rating: 2 out of 5

Cold Weather Advisory issued January 23 at 12:51PM PST until January 24 at 12:00PM PST by NWS Portland OR

Effective: Fri January 23, 2026, 12:51 PM
Expires: Sat January 24, 2026, 12:00 PM

* WHAT...Temperatures and wind chills as low as 15 to 25 degrees Fahrenheit expected. * WHERE...The Lower Elevations of Northwest Oregon, and The Lower Elevations of Southwest Washington. * WHEN...From 10 PM this evening to noon PST Saturday. * IMPACTS...Wind chill values and very cold temperatures can lead to frostbite and hypothermia with prolonged exposure.

Those planning to venture outdoors should use common sense and dress warmly, making sure exposed skin is properly covered to prevent frostbite and/or hypothermia. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Keep pets indoors as much as possible. Make sure outdoor animals have a warm, dry shelter, food, and unfrozen water. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside. If you do not have heat in your home or lack shelter, you can call 211 for assistance locating appropriate shelter from the cold.
Friday, January 23, 2026

Weather Forecast

Sunny
48.2°F
32.5°F
37°F
69%
0 in
0%
0%
8.9 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 13.22 μg/m3
PM10: 13.61 μg/m3
Carbon Monoxide: 381.33 μg/m3
Nitrogen Dioxide: 28.51 μg/m3
Sulphur Dioxide: 2.83 μg/m3
Ozone: 36.68 μg/m3

Astronomical

Sunrise: 7:41 AM
Sun Transit: 12:22 AM
Sunset: 5:05 PM
Daylight: 9 hrs 24 mins
Moonrise: 9:53 AM
Moon Transit: 6:54 AM
Moonset: 10:53 PM
Moon Phase: Waxing Crescent
Moon Illumination: 24.4%

Best Times for Fishing or Hunting

Major Periods

6:24 AM - 8:54 AM
6:24 AM - 8:54 AM

Minor Periods

10:23 PM - 11:53 PM
9:23 AM - 10:53 AM

Action Rating: 2 out of 5

Saturday, January 24, 2026

Weather Forecast

Sunny
51.8°F
32.4°F
39.3°F
65%
0 in
0%
0%
4.5 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 8.17 μg/m3
PM10: 8.44 μg/m3
Carbon Monoxide: 269.05 μg/m3
Nitrogen Dioxide: 17.48 μg/m3
Sulphur Dioxide: 2.6 μg/m3
Ozone: 58.92 μg/m3

Astronomical

Sunrise: 7:40 AM
Sun Transit: 12:22 AM
Sunset: 5:06 PM
Daylight: 9 hrs 26 mins
Moonrise: 10:12 AM
Moon Transit: 5:02 PM
Moonset: 12:09 PM
Moon Phase: First Quarter
Moon Illumination: 34.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:32 PM - 7:02 PM

Minor Periods

12:00 AM - 12:00 AM
9:42 AM - 11:12 AM

Action Rating: 2 out of 5

Sunday, January 25, 2026

Weather Forecast

Partly Cloudy
46.9°F
27.7°F
36.5°F
67%
0 in
0%
0%
2.5 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 13.29 μg/m3
PM10: 14.24 μg/m3
Carbon Monoxide: 493.45 μg/m3
Nitrogen Dioxide: 31.84 μg/m3
Sulphur Dioxide: 3.21 μg/m3
Ozone: 46.32 μg/m3

Astronomical

Sunrise: 7:39 AM
Sun Transit: 12:23 AM
Sunset: 5:07 PM
Daylight: 9 hrs 29 mins
Moonrise: 10:33 AM
Moon Transit: 5:52 PM
Moonset: 12:09 AM
Moon Phase: First Quarter
Moon Illumination: 45.8%

Best Times for Fishing or Hunting

Major Periods

12:26 AM - 2:56 AM
5:22 PM - 7:52 PM

Minor Periods

10:03 AM - 11:33 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Monday, January 26, 2026

Weather Forecast

Cloudy
45.7°F
36.3°F
40.3°F
59%
0 in
0%
0%
2.9 mph
0


Air Quality

AQI: 2 - Moderate
PM2.5: 17.33 μg/m3
PM10: 18.22 μg/m3
Carbon Monoxide: 721.33 μg/m3
Nitrogen Dioxide: 39.09 μg/m3
Sulphur Dioxide: 4.19 μg/m3
Ozone: 26.6 μg/m3

Astronomical

Sunrise: 7:38 AM
Sun Transit: 12:23 AM
Sunset: 5:09 PM
Daylight: 9 hrs 31 mins
Moonrise: 10:59 AM
Moon Transit: 6:46 PM
Moonset: 1:28 AM
Moon Phase: First Quarter
Moon Illumination: 57.1%

Best Times for Fishing or Hunting

Major Periods

1:17 AM - 3:47 AM
6:16 PM - 8:46 PM

Minor Periods

10:29 AM - 11:59 AM
12:58 AM - 2:28 AM

Action Rating: 2 out of 5

Tuesday, January 27, 2026

Weather Forecast

Patchy rain nearby
49.2°F
35.1°F
41°F
79%
0.02 in
74%
0%
7.2 mph
1


Air Quality

AQI: 2 - Moderate
PM2.5: 22.69 μg/m3
PM10: 23.99 μg/m3
Carbon Monoxide: 610.69 μg/m3
Nitrogen Dioxide: 39.81 μg/m3
Sulphur Dioxide: 5.23 μg/m3
Ozone: 25.16 μg/m3

Astronomical

Sunrise: 7:37 AM
Sun Transit: 12:23 AM
Sunset: 5:10 PM
Daylight: 9 hrs 33 mins
Moonrise: 11:33 AM
Moon Transit: 7:45 PM
Moonset: 2:50 AM
Moon Phase: First Quarter
Moon Illumination: 68.0%

Best Times for Fishing or Hunting

Major Periods

2:13 AM - 4:43 AM
7:15 PM - 9:45 PM

Minor Periods

11:03 AM - 12:33 AM
2:20 AM - 3:50 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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