Water Temperature of the Willamette River in Portland, OR

Current Water Temperature

63.0°F

Measurement Time: Thursday, May 21, 2026, 12:30 PM 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

73.9°F
Sunny
Sunny
76.9°F
68.3°F
41%
NNW 7.6 mph
13.5 mph
68.1°F
51.2°F
0 in
0%
9 mi
1014 mbar
6

Five Day Weather Forecast

Sunny
Thu
H: 84°F
L: 51°F
Sunny
Fri
H: 76°F
L: 49°F
Overcast
Sat
H: 77°F
L: 48°F
Sunny
Sun
H: 78°F
L: 46°F
Patchy rain nearby
Mon
H: 65°F
L: 48°F

Air Quality

AQI: 1 - Good
PM2.5: 10.35 μg/m3
PM10: 12.25 μg/m3
Carbon Monoxide: 147.85 μg/m3
Nitrogen Dioxide: 10.65 μg/m3
Sulphur Dioxide: 1.45 μg/m3
Ozone: 44 μg/m3

Astronomical

Sunrise: 5:33 AM
Sun Transit: 1:07 PM
Sunset: 8:42 PM
Daylight: 15 hrs 9 mins
Moonrise: 10:33 AM
Moon Transit: 6:16 PM
Moonset: 1:15 AM
Moon Phase: Waxing Crescent
Moon Illumination: 23.2%

Best Times for Fishing or Hunting

Major Periods

12:48 AM - 3:18 AM
5:46 PM - 8:16 PM

Minor Periods

10:03 AM - 11:33 AM
12:45 AM - 2:15 AM

Action Rating: 3 out of 5

Thursday, May 21, 2026

Weather Forecast

Sunny
84.4°F
51.1°F
65.5°F
59%
0 in
0%
0%
8.5 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 10.04 μg/m3
PM10: 12.17 μg/m3
Carbon Monoxide: 153.05 μg/m3
Nitrogen Dioxide: 7.91 μg/m3
Sulphur Dioxide: 1.46 μg/m3
Ozone: 61.6 μg/m3

Astronomical

Sunrise: 5:33 AM
Sun Transit: 1:07 PM
Sunset: 8:42 PM
Daylight: 15 hrs 9 mins
Moonrise: 10:33 AM
Moon Transit: 6:16 PM
Moonset: 1:15 AM
Moon Phase: Waxing Crescent
Moon Illumination: 23.2%

Best Times for Fishing or Hunting

Major Periods

12:48 AM - 3:18 AM
5:46 PM - 8:16 PM

Minor Periods

10:03 AM - 11:33 AM
12:45 AM - 2:15 AM

Action Rating: 3 out of 5

Friday, May 22, 2026

Weather Forecast

Sunny
76°F
48.9°F
61.6°F
61%
0 in
0%
0%
7.4 mph
5


Air Quality

AQI: 1 - Good
PM2.5: 10.88 μg/m3
PM10: 13.28 μg/m3
Carbon Monoxide: 144.29 μg/m3
Nitrogen Dioxide: 6.81 μg/m3
Sulphur Dioxide: 1.61 μg/m3
Ozone: 71.92 μg/m3

Astronomical

Sunrise: 5:32 AM
Sun Transit: 1:07 PM
Sunset: 8:43 PM
Daylight: 15 hrs 11 mins
Moonrise: 11:51 AM
Moon Transit: 7:06 PM
Moonset: 1:44 AM
Moon Phase: Waxing Crescent
Moon Illumination: 33.4%

Best Times for Fishing or Hunting

Major Periods

1:41 AM - 4:11 AM
6:36 PM - 9:06 PM

Minor Periods

11:21 AM - 12:51 AM
1:14 AM - 2:44 AM

Action Rating: 3 out of 5

Saturday, May 23, 2026

Weather Forecast

Overcast
76.7°F
48.2°F
60.6°F
56%
0 in
0%
0%
11.2 mph
4


Air Quality

AQI: 1 - Good
PM2.5: 6.14 μg/m3
PM10: 7.94 μg/m3
Carbon Monoxide: 124.21 μg/m3
Nitrogen Dioxide: 4.45 μg/m3
Sulphur Dioxide: 1.27 μg/m3
Ozone: 61.24 μg/m3

Astronomical

Sunrise: 5:31 AM
Sun Transit: 1:07 PM
Sunset: 8:44 PM
Daylight: 15 hrs 13 mins
Moonrise: 1:05 PM
Moon Transit: 7:52 PM
Moonset: 2:06 AM
Moon Phase: First Quarter
Moon Illumination: 44.4%

Best Times for Fishing or Hunting

Major Periods

2:30 AM - 5:00 AM
7:22 PM - 9:52 PM

Minor Periods

12:35 AM - 2:05 PM
1:36 AM - 3:06 AM

Action Rating: 2 out of 5

Sunday, May 24, 2026

Weather Forecast

Sunny
77.8°F
45.9°F
60.9°F
53%
0 in
0%
0%
9.8 mph
5


Air Quality

AQI: 1 - Good
PM2.5: 10.24 μg/m3
PM10: 15.6 μg/m3
Carbon Monoxide: 142.65 μg/m3
Nitrogen Dioxide: 6.14 μg/m3
Sulphur Dioxide: 1.49 μg/m3
Ozone: 69.2 μg/m3

Astronomical

Sunrise: 5:31 AM
Sun Transit: 1:07 PM
Sunset: 8:45 PM
Daylight: 15 hrs 15 mins
Moonrise: 2:16 PM
Moon Transit: 8:35 PM
Moonset: 2:25 AM
Moon Phase: First Quarter
Moon Illumination: 55.7%

Best Times for Fishing or Hunting

Major Periods

3:15 AM - 5:45 AM
8:05 PM - 10:35 PM

Minor Periods

1:46 PM - 3:16 PM
1:55 AM - 3:25 AM

Action Rating: 3 out of 5

Monday, May 25, 2026

Weather Forecast

Patchy rain nearby
64.9°F
48°F
53.2°F
70%
0.11 in
81%
0%
9.6 mph
3


Air Quality

AQI: 1 - Good
PM2.5: 11.99 μg/m3
PM10: 17.22 μg/m3
Carbon Monoxide: 212.71 μg/m3
Nitrogen Dioxide: 19.67 μg/m3
Sulphur Dioxide: 1.48 μg/m3
Ozone: 42.77 μg/m3

Astronomical

Sunrise: 5:30 AM
Sun Transit: 1:07 PM
Sunset: 8:46 PM
Daylight: 15 hrs 16 mins
Moonrise: 3:24 PM
Moon Transit: 9:17 PM
Moonset: 2:43 AM
Moon Phase: First Quarter
Moon Illumination: 66.7%

Best Times for Fishing or Hunting

Major Periods

3:57 AM - 6:27 AM
8:47 PM - 11:17 PM

Minor Periods

2:54 PM - 4:24 PM
2:13 AM - 3:43 AM

Action Rating: 3 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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