Water Temperature of the Willamette River in Portland, OR
Current Water Temperature
55.4°F
Measurement Time: Friday, April 18, 2025, 11:00 PM PDT
Temperature Locations
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Local Points of Interest
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Willamette River
Station Name: WILLAMETTE RIVER AT PORTLAND, OR
Data Source: Water Data - usgc.gov
Elevation Above Sea Level: 13 feet / 4 meters
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
53.1°F

Conditions: Light rain
Humidity: 77%
Feels Like: 53.8°F
Wind: NNW 2.2 mph
Wind Gusts: 6.7 mph
Humidity: 77%
Feels Like: 53.8°F
Wind: NNW 2.2 mph
Wind Gusts: 6.7 mph
Pressure: 30.17 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 8 mi
UV Index: 0
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 8 mi
UV Index: 0
Five Day Weather Forecast

Sat
H: 60°F
L: 46°F

Sun
H: 53°F
L: 45°F

Mon
H: 54°F
L: 43°F

Tue
H: 61°F
L: 39°F

Wed
H: 66°F
L: 39°F
Air Quality
AQI:
1 - Good
PM2.5:
7.96 μg/m3
PM10:
11.29 μg/m3
Carbon Monoxide: 314.5 μg/m3
Nitrogen Dioxide: 3.33 μg/m3
Sulphur Dioxide: 1.3 μg/m3
Ozone: 95 μg/m3
Nitrogen Dioxide: 3.33 μg/m3
Sulphur Dioxide: 1.3 μg/m3
Ozone: 95 μg/m3
Astronomical
Sunrise: 6:18 AM
Sun Transit: 1:09 PM
Sunset: 8:03 PM
Daylight: 13 hrs 45 mins
Sun Transit: 1:09 PM
Sunset: 8:03 PM
Daylight: 13 hrs 45 mins
Moonrise: 2:17 AM
Moon Transit: 6:12 AM
Moonset: 10:11 AM
Moon Phase: Last Quarter
Moon Illumination: 49.0%
Moon Transit: 6:12 AM
Moonset: 10:11 AM
Moon Phase: Last Quarter
Moon Illumination: 49.0%
Best Times for Fishing or Hunting
Major Periods
5:42 AM - 8:12 AM1:38 PM - 4:08 PM
Minor Periods
9:41 AM - 11:11 AM1:47 AM - 3:17 AM
Action Rating: 2 out of 5
Saturday, April 19, 2025
Weather Forecast
Conditions: Partly Cloudy
Average Temperature: 52.5°F
Average Humidity: 69%
Average Temperature: 52.5°F
Average Humidity: 69%
Chance of Rain: 0%
Wind: 11.2 mph
UV Index: 1.4
Wind: 11.2 mph
UV Index: 1.4
Air Quality
AQI:
1 - Good
PM2.5:
9.76 μg/m3
PM10:
13.48 μg/m3
Carbon Monoxide: 425.35 μg/m3
Nitrogen Dioxide: 14.33 μg/m3
Sulphur Dioxide: 2.12 μg/m3
Ozone: 71.88 μg/m3
Nitrogen Dioxide: 14.33 μg/m3
Sulphur Dioxide: 2.12 μg/m3
Ozone: 71.88 μg/m3
Astronomical
Sunrise: 6:18 AM
Sun Transit: 1:09 PM
Sunset: 8:03 PM
Daylight: 13 hrs 45 mins
Sun Transit: 1:09 PM
Sunset: 8:03 PM
Daylight: 13 hrs 45 mins
Moonrise: 2:17 AM
Moon Transit: 6:12 AM
Moonset: 10:11 AM
Moon Phase: Last Quarter
Moon Illumination: 49.0%
Moon Transit: 6:12 AM
Moonset: 10:11 AM
Moon Phase: Last Quarter
Moon Illumination: 49.0%
Best Times for Fishing or Hunting
Major Periods
5:42 AM - 8:12 AM1:38 PM - 4:08 PM
Minor Periods
9:41 AM - 11:11 AM1:47 AM - 3:17 AM
Action Rating: 2 out of 5
Sunday, April 20, 2025
Weather Forecast
Conditions: Patchy rain nearby
Average Temperature: 47.6°F
Average Humidity: 79%
Average Temperature: 47.6°F
Average Humidity: 79%
Chance of Rain: 87%
Wind: 8.1 mph
UV Index: 0.5
Wind: 8.1 mph
UV Index: 0.5
Air Quality
AQI:
1 - Good
PM2.5:
13.69 μg/m3
PM10:
19.1 μg/m3
Carbon Monoxide: 372.44 μg/m3
Nitrogen Dioxide: 13.34 μg/m3
Sulphur Dioxide: 2.21 μg/m3
Ozone: 72.16 μg/m3
Nitrogen Dioxide: 13.34 μg/m3
Sulphur Dioxide: 2.21 μg/m3
Ozone: 72.16 μg/m3
Astronomical
Sunrise: 6:16 AM
Sun Transit: 1:09 PM
Sunset: 8:04 PM
Daylight: 13 hrs 48 mins
Sun Transit: 1:09 PM
Sunset: 8:04 PM
Daylight: 13 hrs 48 mins
Moonrise: 2:58 AM
Moon Transit: 7:06 AM
Moonset: 11:20 AM
Moon Phase: Last Quarter
Moon Illumination: 37.8%
Moon Transit: 7:06 AM
Moonset: 11:20 AM
Moon Phase: Last Quarter
Moon Illumination: 37.8%
Best Times for Fishing or Hunting
Major Periods
6:36 AM - 9:06 AM2:31 PM - 5:01 PM
Minor Periods
10:50 AM - 12:20 AM2:28 AM - 3:58 AM
Action Rating: 3 out of 5
Monday, April 21, 2025
Weather Forecast
Conditions: Cloudy
Average Temperature: 47.8°F
Average Humidity: 69%
Average Temperature: 47.8°F
Average Humidity: 69%
Chance of Rain: 0%
Wind: 6 mph
UV Index: 0.9
Wind: 6 mph
UV Index: 0.9
Air Quality
AQI:
1 - Good
PM2.5:
9.57 μg/m3
PM10:
12.85 μg/m3
Carbon Monoxide: 395.46 μg/m3
Nitrogen Dioxide: 13.53 μg/m3
Sulphur Dioxide: 1.84 μg/m3
Ozone: 68.2 μg/m3
Nitrogen Dioxide: 13.53 μg/m3
Sulphur Dioxide: 1.84 μg/m3
Ozone: 68.2 μg/m3
Astronomical
Sunrise: 6:14 AM
Sun Transit: 1:09 PM
Sunset: 8:05 PM
Daylight: 13 hrs 51 mins
Sun Transit: 1:09 PM
Sunset: 8:05 PM
Daylight: 13 hrs 51 mins
Moonrise: 3:31 AM
Moon Transit: 7:58 AM
Moonset: 12:35 AM
Moon Phase: Last Quarter
Moon Illumination: 27.2%
Moon Transit: 7:58 AM
Moonset: 12:35 AM
Moon Phase: Last Quarter
Moon Illumination: 27.2%
Best Times for Fishing or Hunting
Major Periods
7:28 AM - 9:58 AM3:23 PM - 5:53 PM
Minor Periods
12:05 AM - 1:35 PM3:01 AM - 4:31 AM
Action Rating: 2 out of 5
Tuesday, April 22, 2025
Weather Forecast
Conditions: Overcast
Average Temperature: 48.8°F
Average Humidity: 64%
Average Temperature: 48.8°F
Average Humidity: 64%
Chance of Rain: 0%
Wind: 6.3 mph
UV Index: 1.3
Wind: 6.3 mph
UV Index: 1.3
Air Quality
AQI:
1 - Good
PM2.5:
8.65 μg/m3
PM10:
11.22 μg/m3
Carbon Monoxide: 357.94 μg/m3
Nitrogen Dioxide: 14.3 μg/m3
Sulphur Dioxide: 2 μg/m3
Ozone: 59.48 μg/m3
Nitrogen Dioxide: 14.3 μg/m3
Sulphur Dioxide: 2 μg/m3
Ozone: 59.48 μg/m3
Astronomical
Sunrise: 6:13 AM
Sun Transit: 1:09 PM
Sunset: 8:07 PM
Daylight: 13 hrs 54 mins
Sun Transit: 1:09 PM
Sunset: 8:07 PM
Daylight: 13 hrs 54 mins
Moonrise: 3:58 AM
Moon Transit: 8:49 AM
Moonset: 1:52 PM
Moon Phase: Last Quarter
Moon Illumination: 17.8%
Moon Transit: 8:49 AM
Moonset: 1:52 PM
Moon Phase: Last Quarter
Moon Illumination: 17.8%
Best Times for Fishing or Hunting
Major Periods
8:19 AM - 10:49 AM4:14 PM - 6:44 PM
Minor Periods
1:22 PM - 2:52 PM3:28 AM - 4:58 AM
Action Rating: 2 out of 5
Wednesday, April 23, 2025
Weather Forecast
Conditions: Sunny
Average Temperature: 50.5°F
Average Humidity: 65%
Average Temperature: 50.5°F
Average Humidity: 65%
Chance of Rain: 0%
Wind: 6.7 mph
UV Index: 0
Wind: 6.7 mph
UV Index: 0
Air Quality
AQI:
1 - Good
PM2.5:
9.86 μg/m3
PM10:
10.52 μg/m3
Carbon Monoxide: 399.6 μg/m3
Nitrogen Dioxide: 23.25 μg/m3
Sulphur Dioxide: 2.52 μg/m3
Ozone: 58.69 μg/m3
Nitrogen Dioxide: 23.25 μg/m3
Sulphur Dioxide: 2.52 μg/m3
Ozone: 58.69 μg/m3
Astronomical
Sunrise: 6:11 AM
Sun Transit: 1:08 PM
Sunset: 8:08 PM
Daylight: 13 hrs 57 mins
Sun Transit: 1:08 PM
Sunset: 8:08 PM
Daylight: 13 hrs 57 mins
Moonrise: 4:20 AM
Moon Transit: 9:39 AM
Moonset: 3:11 PM
Moon Phase: Waning Crescent
Moon Illumination: 10.0%
Moon Transit: 9:39 AM
Moonset: 3:11 PM
Moon Phase: Waning Crescent
Moon Illumination: 10.0%
Best Times for Fishing or Hunting
Major Periods
5:03 PM - 7:33 PM9:09 AM - 11:39 AM
Minor Periods
2:41 PM - 4:11 PM3:50 AM - 5:20 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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