Water Temperature of the Willamette River in Portland, OR

Current Water Temperature

75.0°F

Measurement Time: Saturday, July 25, 2026, 5:30 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

60.4°F
Clear
Clear
52.2°F
60.4°F
83%
SSW 2.2 mph
3 mph
60.4°F
55.2°F
0 in
13%
6 mi
1017 mbar
0

Five Day Weather Forecast

Sunny
Sun
H: 85°F
L: 58°F
Sunny
Mon
H: 85°F
L: 58°F
Partly Cloudy
Tue
H: 81°F
L: 58°F
Sunny
Wed
H: 84°F
L: 56°F
Sunny
Thu
H: 86°F
L: 54°F

Air Quality

AQI: 1 - Good
PM2.5: 6.1 μg/m3
PM10: 7.1 μg/m3
Carbon Monoxide: 138 μg/m3
Nitrogen Dioxide: 11.2 μg/m3
Sulphur Dioxide: 1.2 μg/m3
Ozone: 31 μg/m3

Astronomical

Sunrise: 5:48 AM
Sun Transit: 1:17 PM
Sunset: 8:46 PM
Daylight: 14 hrs 58 mins
Moonrise: 7:29 PM
Moon Transit: 11:28 PM
Moonset: 2:33 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 92.3%

Best Times for Fishing or Hunting

Major Periods

6:01 AM - 8:31 AM
12:00 AM - 12:00 AM

Minor Periods

6:59 PM - 8:29 PM
2:03 AM - 3:33 AM

Action Rating: 4 out of 5

Sunday, July 26, 2026

Weather Forecast

Sunny
84.8°F
57.9°F
69.1°F
63%
0 in
5%
0%
10.5 mph
7.8


Air Quality

AQI: 1 - Good
PM2.5: 4.4 μg/m3
PM10: 5.4 μg/m3
Carbon Monoxide: 113.42 μg/m3
Nitrogen Dioxide: 6.19 μg/m3
Sulphur Dioxide: 0.82 μg/m3
Ozone: 44.38 μg/m3

Astronomical

Sunrise: 5:48 AM
Sun Transit: 1:17 PM
Sunset: 8:46 PM
Daylight: 14 hrs 58 mins
Moonrise: 7:29 PM
Moon Transit: 11:28 PM
Moonset: 2:33 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 92.3%

Best Times for Fishing or Hunting

Major Periods

6:01 AM - 8:31 AM
12:00 AM - 12:00 AM

Minor Periods

6:59 PM - 8:29 PM
2:03 AM - 3:33 AM

Action Rating: 4 out of 5

Monday, July 27, 2026

Weather Forecast

Sunny
84.9°F
57.5°F
70.4°F
54%
0 in
3%
0%
8.1 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 9.4 μg/m3
PM10: 12.67 μg/m3
Carbon Monoxide: 105.75 μg/m3
Nitrogen Dioxide: 6.78 μg/m3
Sulphur Dioxide: 0.76 μg/m3
Ozone: 49.83 μg/m3

Astronomical

Sunrise: 5:49 AM
Sun Transit: 1:17 PM
Sunset: 8:45 PM
Daylight: 14 hrs 56 mins
Moonrise: 8:08 PM
Moon Transit: 12:00 AM
Moonset: 3:30 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
6:53 AM - 9:23 AM

Minor Periods

7:38 PM - 9:08 PM
3:00 AM - 4:30 AM

Action Rating: 3 out of 5

Tuesday, July 28, 2026

Weather Forecast

Partly Cloudy
81.2°F
57.8°F
69.2°F
59%
0 in
5%
0%
10.7 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 6.44 μg/m3
PM10: 8.51 μg/m3
Carbon Monoxide: 108 μg/m3
Nitrogen Dioxide: 6.16 μg/m3
Sulphur Dioxide: 0.74 μg/m3
Ozone: 36.29 μg/m3

Astronomical

Sunrise: 5:50 AM
Sun Transit: 1:17 PM
Sunset: 8:44 PM
Daylight: 14 hrs 54 mins
Moonrise: 8:39 PM
Moon Transit: 12:18 AM
Moonset: 4:35 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
7:42 AM - 10:12 AM

Minor Periods

8:09 PM - 9:39 PM
4:05 AM - 5:35 AM

Action Rating: 4 out of 5

Wednesday, July 29, 2026

Weather Forecast

Sunny
84.1°F
56.3°F
69.2°F
54%
0 in
2%
0%
10.7 mph
7.9


Air Quality

AQI: 1 - Good
PM2.5: 6.9 μg/m3
PM10: 9.11 μg/m3
Carbon Monoxide: 103.21 μg/m3
Nitrogen Dioxide: 5.35 μg/m3
Sulphur Dioxide: 0.88 μg/m3
Ozone: 51.71 μg/m3

Astronomical

Sunrise: 5:51 AM
Sun Transit: 1:17 PM
Sunset: 8:43 PM
Daylight: 14 hrs 51 mins
Moonrise: 9:04 PM
Moon Transit: 1:07 AM
Moonset: 5:43 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:37 AM - 3:07 AM
8:30 AM - 11:00 AM

Minor Periods

8:34 PM - 10:04 PM
5:13 AM - 6:43 AM

Action Rating: 4 out of 5

Thursday, July 30, 2026

Weather Forecast

Sunny
85.8°F
53.7°F
68.9°F
44%
0 in
1%
0%
8.3 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 6.93 μg/m3
PM10: 8.6 μg/m3
Carbon Monoxide: 134 μg/m3
Nitrogen Dioxide: 10.87 μg/m3
Sulphur Dioxide: 0.8 μg/m3
Ozone: 33.17 μg/m3

Astronomical

Sunrise: 5:52 AM
Sun Transit: 1:17 PM
Sunset: 8:41 PM
Daylight: 14 hrs 49 mins
Moonrise: 9:24 PM
Moon Transit: 1:53 AM
Moonset: 6:52 AM
Moon Phase: Full
Moon Illumination: 97.1%

Best Times for Fishing or Hunting

Major Periods

1:23 AM - 3:53 AM
9:16 AM - 11:46 AM

Minor Periods

8:54 PM - 10:24 PM
6:22 AM - 7:52 AM

Action Rating: 5 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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