Water Temperature of the Willamette River in Portland, OR

Current Water Temperature

45.5°F

Measurement Time: Thursday, February 19, 2026, 9:30 AM 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

43°F
Partly cloudy
Partly cloudy
40°F
42.5°F
73%
NNW 4.9 mph
7.1 mph
42.4°F
36.7°F
0 in
75%
9 mi
1011 mbar
0

Five Day Weather Forecast

Patchy rain nearby
Thu
H: 44°F
L: 33°F
Overcast
Fri
H: 39°F
L: 34°F
Heavy rain
Sat
H: 45°F
L: 36°F
Moderate rain
Sun
H: 47°F
L: 39°F
Heavy rain
Mon
H: 47°F
L: 41°F

Air Quality

AQI: 1 - Good
PM2.5: 20.85 μg/m3
PM10: 22.75 μg/m3
Carbon Monoxide: 594.85 μg/m3
Nitrogen Dioxide: 41.85 μg/m3
Sulphur Dioxide: 4.35 μg/m3
Ozone: 18 μg/m3

Astronomical

Sunrise: 7:06 AM
Sun Transit: 12:24 AM
Sunset: 5:44 PM
Daylight: 10 hrs 38 mins
Moonrise: 8:00 AM
Moon Transit: 1:07 PM
Moonset: 8:42 PM
Moon Phase: Waxing Crescent
Moon Illumination: 5.2%

Best Times for Fishing or Hunting

Major Periods

12:37 AM - 3:07 PM
12:37 AM - 3:07 PM

Minor Periods

8:12 PM - 9:42 PM
7:30 AM - 9:00 AM

Action Rating: 3 out of 5

Winter Weather Advisory issued February 18 at 8:52PM PST until February 19 at 12:00PM PST by NWS Portland OR

Effective: Wed February 18, 2026, 8:52 PM
Expires: Thu February 19, 2026, 12:00 PM

* WHAT...Snow. Additional snow accumulations of 1 to 3 inches, with the lowest amounts below 1000 feet in elevation and the highest amounts above 1000-1500 feet in elevation. * WHERE...Northern and Central Coast Range Valleys and Mountains of Oregon, Foothills of the Northern and Central Oregon Cascades, Portland West Hills and Chehalem Mountain, Willapa Hills, and South Washington Cascade Foothills. * WHEN...Until noon PST Thursday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous.

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


Winter Weather Advisory issued February 18 at 8:52PM PST until February 19 at 7:00PM PST by NWS Portland OR

Effective: Wed February 18, 2026, 8:52 PM
Expires: Thu February 19, 2026, 12:45 PM

* WHAT...Snow. Additional snow accumulations between 2 and 5 inches. Snow amounts will be highest for elevations above 1500 feet. * WHERE...South Washington Cascades and the Northern and Central Cascades of Oregon. * WHEN...Until 7 PM PST Thursday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous.

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
Thursday, February 19, 2026

Weather Forecast

Patchy rain nearby
43.5°F
32.7°F
37.9°F
87%
0.07 in
87%
0%
6.7 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 6.5 μg/m3
PM10: 7.42 μg/m3
Carbon Monoxide: 236.69 μg/m3
Nitrogen Dioxide: 16.33 μg/m3
Sulphur Dioxide: 4.78 μg/m3
Ozone: 56.6 μg/m3

Astronomical

Sunrise: 7:06 AM
Sun Transit: 12:24 AM
Sunset: 5:44 PM
Daylight: 10 hrs 38 mins
Moonrise: 8:00 AM
Moon Transit: 1:07 PM
Moonset: 8:42 PM
Moon Phase: Waxing Crescent
Moon Illumination: 5.2%

Best Times for Fishing or Hunting

Major Periods

12:37 AM - 3:07 PM
12:37 AM - 3:07 PM

Minor Periods

8:12 PM - 9:42 PM
7:30 AM - 9:00 AM

Action Rating: 3 out of 5

Friday, February 20, 2026

Weather Forecast

Overcast
38.5°F
34.3°F
36.6°F
92%
0 in
0%
0%
5.4 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 13.05 μg/m3
PM10: 14.39 μg/m3
Carbon Monoxide: 417.77 μg/m3
Nitrogen Dioxide: 32.93 μg/m3
Sulphur Dioxide: 4.8 μg/m3
Ozone: 37.12 μg/m3

Astronomical

Sunrise: 7:04 AM
Sun Transit: 12:24 AM
Sunset: 5:45 PM
Daylight: 10 hrs 41 mins
Moonrise: 8:18 AM
Moon Transit: 3:00 PM
Moonset: 9:58 PM
Moon Phase: Waxing Crescent
Moon Illumination: 11.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:30 PM - 5:00 PM

Minor Periods

9:28 PM - 10:58 PM
7:48 AM - 9:18 AM

Action Rating: 2 out of 5

Saturday, February 21, 2026

Weather Forecast

Heavy rain
45°F
35.8°F
40°F
88%
1.08 in
87%
0%
11 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 7.19 μg/m3
PM10: 7.77 μg/m3
Carbon Monoxide: 244.05 μg/m3
Nitrogen Dioxide: 21.11 μg/m3
Sulphur Dioxide: 3.66 μg/m3
Ozone: 53.84 μg/m3

Astronomical

Sunrise: 7:02 AM
Sun Transit: 12:24 AM
Sunset: 5:47 PM
Daylight: 10 hrs 44 mins
Moonrise: 8:39 AM
Moon Transit: 3:49 PM
Moonset: 11:17 PM
Moon Phase: Waxing Crescent
Moon Illumination: 19.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:19 PM - 5:49 PM

Minor Periods

12:00 AM - 12:00 AM
8:09 AM - 9:39 AM

Action Rating: 3 out of 5

Sunday, February 22, 2026

Weather Forecast

Moderate rain
46.9°F
38.5°F
41.6°F
88%
0.22 in
70%
0%
9.8 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 6.74 μg/m3
PM10: 7.12 μg/m3
Carbon Monoxide: 205.39 μg/m3
Nitrogen Dioxide: 14.48 μg/m3
Sulphur Dioxide: 2.97 μg/m3
Ozone: 64.08 μg/m3

Astronomical

Sunrise: 7:01 AM
Sun Transit: 12:24 AM
Sunset: 5:48 PM
Daylight: 10 hrs 47 mins
Moonrise: 9:03 AM
Moon Transit: 4:42 PM
Moonset: 12:17 AM
Moon Phase: Waxing Crescent
Moon Illumination: 29.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:12 PM - 6:42 PM

Minor Periods

8:33 AM - 10:03 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Monday, February 23, 2026

Weather Forecast

Heavy rain
46.8°F
41.4°F
44.2°F
98%
1.31 in
68%
0%
3.8 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 13.42 μg/m3
PM10: 14.65 μg/m3
Carbon Monoxide: 301.33 μg/m3
Nitrogen Dioxide: 34.48 μg/m3
Sulphur Dioxide: 3.83 μg/m3
Ozone: 37.15 μg/m3

Astronomical

Sunrise: 6:59 AM
Sun Transit: 12:23 AM
Sunset: 5:49 PM
Daylight: 10 hrs 50 mins
Moonrise: 9:34 AM
Moon Transit: 5:39 PM
Moonset: 12:38 AM
Moon Phase: First Quarter
Moon Illumination: 39.8%

Best Times for Fishing or Hunting

Major Periods

12:08 AM - 2:38 AM
5:09 PM - 7:39 PM

Minor Periods

9:04 AM - 10:34 AM
12:08 AM - 1:38 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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