Water Temperature of the Willamette River in Portland, OR

Current Water Temperature

51.8°F

Measurement Time: Friday, March 20, 2026, 7:30 AM PDT

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

61°F
Partly cloudy
Partly cloudy
61°F
59.4°F
64%
SE 2.2 mph
2.3 mph
58.9°F
55.2°F
0 in
75%
9 mi
1022 mbar
0.6

Five Day Weather Forecast

Patchy rain nearby
Fri
H: 62°F
L: 50°F
Fog
Sat
H: 48°F
L: 37°F
Overcast
Sun
H: 53°F
L: 31°F
Overcast
Mon
H: 54°F
L: 37°F
Moderate rain
Tue
H: 51°F
L: 41°F

Air Quality

AQI: 2 - Moderate
PM2.5: 5.55 μg/m3
PM10: 6.65 μg/m3
Carbon Monoxide: 273.85 μg/m3
Nitrogen Dioxide: 17.15 μg/m3
Sulphur Dioxide: 2.45 μg/m3
Ozone: 42 μg/m3

Astronomical

Sunrise: 7:13 AM
Sun Transit: 7:27 AM
Sunset: 7:23 PM
Daylight: 12 hrs 10 mins
Moonrise: 7:42 AM
Moon Transit: 2:42 PM
Moonset: 10:00 PM
Moon Phase: New
Moon Illumination: 2.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:12 PM - 4:42 PM

Minor Periods

9:30 PM - 11:00 PM
7:12 AM - 8:42 AM

Action Rating: 4 out of 5

Friday, March 20, 2026

Weather Forecast

Patchy rain nearby
61.7°F
49.6°F
54.3°F
84%
0.06 in
87%
0%
7.4 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 7.36 μg/m3
PM10: 8.07 μg/m3
Carbon Monoxide: 206.13 μg/m3
Nitrogen Dioxide: 22.7 μg/m3
Sulphur Dioxide: 2.92 μg/m3
Ozone: 25.12 μg/m3

Astronomical

Sunrise: 7:13 AM
Sun Transit: 7:27 AM
Sunset: 7:23 PM
Daylight: 12 hrs 10 mins
Moonrise: 7:42 AM
Moon Transit: 2:42 PM
Moonset: 10:00 PM
Moon Phase: New
Moon Illumination: 2.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:12 PM - 4:42 PM

Minor Periods

9:30 PM - 11:00 PM
7:12 AM - 8:42 AM

Action Rating: 4 out of 5

Saturday, March 21, 2026

Weather Forecast

Fog
48.4°F
37.2°F
43°F
82%
0 in
0%
0%
6.9 mph
1.1


Air Quality

AQI: 1 - Good
PM2.5: 5.21 μg/m3
PM10: 6.85 μg/m3
Carbon Monoxide: 208.93 μg/m3
Nitrogen Dioxide: 8.31 μg/m3
Sulphur Dioxide: 1.87 μg/m3
Ozone: 72.92 μg/m3

Astronomical

Sunrise: 7:11 AM
Sun Transit: 12:00 AM
Sunset: 7:25 PM
Daylight: 12 hrs 13 mins
Moonrise: 8:06 AM
Moon Transit: 3:35 PM
Moonset: 11:23 PM
Moon Phase: Waxing Crescent
Moon Illumination: 7.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:05 PM - 5:35 PM

Minor Periods

12:00 AM - 12:00 AM
7:36 AM - 9:06 AM

Action Rating: 3 out of 5

Sunday, March 22, 2026

Weather Forecast

Overcast
52.5°F
31.1°F
41.8°F
79%
0 in
0%
0%
7.6 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 6.75 μg/m3
PM10: 8.47 μg/m3
Carbon Monoxide: 215.73 μg/m3
Nitrogen Dioxide: 13.7 μg/m3
Sulphur Dioxide: 2.29 μg/m3
Ozone: 68.76 μg/m3

Astronomical

Sunrise: 7:09 AM
Sun Transit: 12:00 AM
Sunset: 7:26 PM
Daylight: 12 hrs 16 mins
Moonrise: 8:36 AM
Moon Transit: 4:32 PM
Moonset: 12:23 AM
Moon Phase: Waxing Crescent
Moon Illumination: 14.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:02 PM - 6:32 PM

Minor Periods

8:06 AM - 9:36 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Monday, March 23, 2026

Weather Forecast

Overcast
53.8°F
36.5°F
43.9°F
78%
0 in
0%
0%
4 mph
0.9


Air Quality

AQI: 1 - Good
PM2.5: 7.13 μg/m3
PM10: 8.38 μg/m3
Carbon Monoxide: 228.67 μg/m3
Nitrogen Dioxide: 15.67 μg/m3
Sulphur Dioxide: 2.75 μg/m3
Ozone: 58.12 μg/m3

Astronomical

Sunrise: 7:08 AM
Sun Transit: 12:00 AM
Sunset: 7:27 PM
Daylight: 12 hrs 20 mins
Moonrise: 9:13 AM
Moon Transit: 5:33 PM
Moonset: 12:46 AM
Moon Phase: Waxing Crescent
Moon Illumination: 23.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 2:30 AM
5:03 PM - 7:33 PM

Minor Periods

8:43 AM - 10:13 AM
12:16 AM - 1:46 AM

Action Rating: 3 out of 5

Tuesday, March 24, 2026

Weather Forecast

Moderate rain
50.7°F
41.2°F
47.6°F
85%
0.62 in
83%
0%
13.4 mph
0.1


Air Quality

AQI: 2 - Moderate
PM2.5: 20.75 μg/m3
PM10: 22.53 μg/m3
Carbon Monoxide: 490.12 μg/m3
Nitrogen Dioxide: 46.01 μg/m3
Sulphur Dioxide: 5.74 μg/m3
Ozone: 14.38 μg/m3

Astronomical

Sunrise: 7:06 AM
Sun Transit: 12:00 AM
Sunset: 7:29 PM
Daylight: 12 hrs 23 mins
Moonrise: 10:04 AM
Moon Transit: 6:36 PM
Moonset: 2:03 AM
Moon Phase: Waxing Crescent
Moon Illumination: 34.0%

Best Times for Fishing or Hunting

Major Periods

1:02 AM - 3:32 AM
6:06 PM - 8:36 PM

Minor Periods

9:34 AM - 11:04 AM
1:33 AM - 3:03 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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