Water Temperature of the Willamette River in Portland, OR

Current Water Temperature

59.4°F

Measurement Time: Monday, October 19, 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

64.5°F
Sunny
Conditions: Sunny
Humidity: 35%
Feels Like: 60.4°F
Wind: NW 2.2 mph
Wind Gusts: 13 mph
Pressure: 29.93 in
Precipitation: 0 in
Cloud Cover: 17%
Visibility: 6 mi
UV Index: 2

Weather Forecast

Overcast
Mon
H: 65°F
L: 51°F
Overcast
Tue
H: 72°F
L: 50°F
Sunny
Wed
H: 72°F
L: 51°F

Air Quality

PM2.5: 11.7 μg/m3
PM10: 14.8 μg/m3
Carbon Monoxide: 133 μg/m3
Nitrogen Dioxide: 6.6 μg/m3
Sulphur Dioxide: 1.7 μg/m3
Ozone: 68 μg/m3

Astronomical

Sunrise: 7:32 AM
Sun Transit: 12:55 AM
Sunset: 6:18 PM
Daylight: 10 hrs 46 mins
Moonrise: 3:34 PM
Moon Transit: 8:19 PM
Moonset: 12:05 AM
Moon Phase: First Quarter
Moon Illumination: 59.6%

Best Times for Fishing or Hunting

Major Periods

2:56 AM - 5:26 AM
7:49 PM - 10:19 PM

Minor Periods

3:04 PM - 4:34 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Monday, October 19, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 57.5°F
Average Humidity: 48%
Chance of Rain: 9%
Wind: 4.9 mph
UV Index: 2.3

Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:32 AM
Sun Transit: 12:55 AM
Sunset: 6:18 PM
Daylight: 10 hrs 46 mins
Moonrise: 3:34 PM
Moon Transit: 8:19 PM
Moonset: 12:05 AM
Moon Phase: First Quarter
Moon Illumination: 59.6%

Best Times for Fishing or Hunting

Major Periods

2:56 AM - 5:26 AM
7:49 PM - 10:19 PM

Minor Periods

3:04 PM - 4:34 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Tuesday, October 20, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 59°F
Average Humidity: 49%
Chance of Rain: 6%
Wind: 6.3 mph
UV Index: 2.4

Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:34 AM
Sun Transit: 12:55 AM
Sunset: 6:16 PM
Daylight: 10 hrs 43 mins
Moonrise: 3:56 PM
Moon Transit: 9:03 PM
Moonset: 1:13 AM
Moon Phase: First Quarter
Moon Illumination: 70.4%

Best Times for Fishing or Hunting

Major Periods

3:42 AM - 6:12 AM
8:33 PM - 11:03 PM

Minor Periods

3:26 PM - 4:56 PM
12:43 AM - 2:13 AM

Action Rating: 2 out of 5

Wednesday, October 21, 2026

Weather Forecast

Conditions: Sunny
Average Temperature: 60°F
Average Humidity: 43%
Chance of Rain: 2%
Wind: 2.9 mph
UV Index: 2.4

Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:35 AM
Sun Transit: 12:55 AM
Sunset: 6:15 PM
Daylight: 10 hrs 40 mins
Moonrise: 4:15 PM
Moon Transit: 9:47 PM
Moonset: 2:22 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 80.1%

Best Times for Fishing or Hunting

Major Periods

4:26 AM - 6:56 AM
9:17 PM - 11:47 PM

Minor Periods

3:45 PM - 5:15 PM
1:52 AM - 3:22 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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