Water Temperature of the Willamette River in Portland, OR

Current Water Temperature

74.3°F

Measurement Time: Thursday, July 16, 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

64.9°F
Partly cloudy
Partly cloudy
64.9°F
63.5°F
70%
N 6 mph
8.2 mph
63.5°F
59°F
0 in
75%
9 mi
1017 mbar
0.1

Five Day Weather Forecast

Sunny
Thu
H: 77°F
L: 59°F
Sunny
Fri
H: 82°F
L: 56°F
Sunny
Sat
H: 84°F
L: 55°F
Sunny
Sun
H: 87°F
L: 55°F
Sunny
Mon
H: 93°F
L: 61°F

Air Quality

AQI: 1 - Good
PM2.5: 7.4 μg/m3
PM10: 9.9 μg/m3
Carbon Monoxide: 100 μg/m3
Nitrogen Dioxide: 2.7 μg/m3
Sulphur Dioxide: 0.6 μg/m3
Ozone: 72 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 1:16 PM
Sunset: 8:56 PM
Daylight: 15 hrs 18 mins
Moonrise: 8:25 AM
Moon Transit: 3:36 PM
Moonset: 10:32 PM
Moon Phase: New
Moon Illumination: 2.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:06 PM - 5:36 PM

Minor Periods

10:02 PM - 11:32 PM
7:55 AM - 9:25 AM

Action Rating: 3 out of 5

Thursday, July 16, 2026

Weather Forecast

Sunny
77°F
58.8°F
65°F
76%
0.02 in
39%
0%
6.3 mph
4.2


Air Quality

AQI: 1 - Good
PM2.5: 6.77 μg/m3
PM10: 8.95 μg/m3
Carbon Monoxide: 107.5 μg/m3
Nitrogen Dioxide: 4.85 μg/m3
Sulphur Dioxide: 0.71 μg/m3
Ozone: 60.67 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 1:16 PM
Sunset: 8:56 PM
Daylight: 15 hrs 18 mins
Moonrise: 8:25 AM
Moon Transit: 3:36 PM
Moonset: 10:32 PM
Moon Phase: New
Moon Illumination: 2.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:06 PM - 5:36 PM

Minor Periods

10:02 PM - 11:32 PM
7:55 AM - 9:25 AM

Action Rating: 3 out of 5

Friday, July 17, 2026

Weather Forecast

Sunny
81.6°F
55.9°F
67.4°F
63%
0 in
5%
0%
8.1 mph
8.2


Air Quality

AQI: 1 - Good
PM2.5: 9.13 μg/m3
PM10: 11.7 μg/m3
Carbon Monoxide: 117.42 μg/m3
Nitrogen Dioxide: 7.53 μg/m3
Sulphur Dioxide: 0.68 μg/m3
Ozone: 57.88 μg/m3

Astronomical

Sunrise: 5:38 AM
Sun Transit: 1:16 PM
Sunset: 8:55 PM
Daylight: 15 hrs 16 mins
Moonrise: 9:43 AM
Moon Transit: 4:24 PM
Moonset: 10:51 PM
Moon Phase: Waxing Crescent
Moon Illumination: 7.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:54 PM - 6:24 PM

Minor Periods

10:21 PM - 11:51 PM
9:13 AM - 10:43 AM

Action Rating: 2 out of 5

Saturday, July 18, 2026

Weather Forecast

Sunny
84.1°F
54.8°F
68.9°F
56%
0 in
3%
0%
9.4 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 6.41 μg/m3
PM10: 8.22 μg/m3
Carbon Monoxide: 103.29 μg/m3
Nitrogen Dioxide: 4.45 μg/m3
Sulphur Dioxide: 0.69 μg/m3
Ozone: 65.5 μg/m3

Astronomical

Sunrise: 5:39 AM
Sun Transit: 1:17 PM
Sunset: 8:54 PM
Daylight: 15 hrs 15 mins
Moonrise: 10:58 AM
Moon Transit: 5:09 PM
Moonset: 11:09 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:39 PM - 7:09 PM

Minor Periods

12:00 AM - 12:00 AM
10:28 AM - 11:58 AM

Action Rating: 2 out of 5

Sunday, July 19, 2026

Weather Forecast

Sunny
87.2°F
55.2°F
70.8°F
55%
0 in
2%
0%
7.8 mph
8.4


Air Quality

AQI: 1 - Good
PM2.5: 7.27 μg/m3
PM10: 9.37 μg/m3
Carbon Monoxide: 109.47 μg/m3
Nitrogen Dioxide: 4.19 μg/m3
Sulphur Dioxide: 0.81 μg/m3
Ozone: 68.21 μg/m3

Astronomical

Sunrise: 5:40 AM
Sun Transit: 1:17 PM
Sunset: 8:53 PM
Daylight: 15 hrs 13 mins
Moonrise: 12:09 AM
Moon Transit: 5:53 PM
Moonset: 12:09 AM
Moon Phase: Waxing Crescent
Moon Illumination: 22.6%

Best Times for Fishing or Hunting

Major Periods

12:32 AM - 3:02 AM
5:23 PM - 7:53 PM

Minor Periods

11:39 AM - 1:09 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Monday, July 20, 2026

Weather Forecast

Sunny
92.9°F
60.7°F
75°F
49%
0 in
4%
0%
4.7 mph
8.9


Air Quality

AQI: 1 - Good
PM2.5: 8.79 μg/m3
PM10: 10.53 μg/m3
Carbon Monoxide: 137.38 μg/m3
Nitrogen Dioxide: 6.8 μg/m3
Sulphur Dioxide: 1.09 μg/m3
Ozone: 68.88 μg/m3

Astronomical

Sunrise: 5:41 AM
Sun Transit: 1:17 PM
Sunset: 8:52 PM
Daylight: 15 hrs 11 mins
Moonrise: 1:18 PM
Moon Transit: 6:37 PM
Moonset: 12:26 AM
Moon Phase: Waxing Crescent
Moon Illumination: 32.7%

Best Times for Fishing or Hunting

Major Periods

1:16 AM - 3:46 AM
6:07 PM - 8:37 PM

Minor Periods

12:48 AM - 2:18 PM
12:00 AM - 12:00 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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