Water Temperature of the Willamette River in Portland, OR

Current Water Temperature

48.0°F

Measurement Time: Monday, March 10, 2025, 4:30 AM 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

48.9°F
Overcast
Conditions: Overcast
Humidity: 74%
Feels Like: 45.8°F
Wind: SSE 7.2 mph
Wind Gusts: 11.4 mph
Pressure: 29.62 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Overcast
Tue
H: 50°F
L: 42°F
Patchy rain nearby
Wed
H: 53°F
L: 44°F
Mist
Thu
H: 46°F
L: 38°F
Heavy rain
Fri
H: 44°F
L: 36°F
Moderate rain
Sat
H: 47°F
L: 40°F

Air Quality

AQI: 1 - Good
PM2.5: 5.92 μg/m3
PM10: 6.48 μg/m3
Carbon Monoxide: 325.6 μg/m3
Nitrogen Dioxide: 9.62 μg/m3
Sulphur Dioxide: 2.41 μg/m3
Ozone: 75 μg/m3

Astronomical

Sunrise: 7:30 AM
Sun Transit: 12:00 AM
Sunset: 7:12 PM
Daylight: 11 hrs 42 mins
Moonrise: 4:42 PM
Moon Transit: 12:00 AM
Moonset: 6:44 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 92.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
6:38 AM - 9:08 AM

Minor Periods

4:12 PM - 5:42 PM
6:14 AM - 7:44 AM

Action Rating: 3 out of 5

Winter Weather Advisory issued March 11 at 1:32PM PDT until March 13 at 11:00PM PDT by NWS Portland OR

Effective: Tue March 11, 2025, 1:32 PM
Expires: Wed March 12, 2025, 8:00 AM

* WHAT...Snow expected elevations above 3500 ft. Total snow accumulations up to 6 to 11 inches. * WHERE...South Washington Cascades and the Northern and Central Cascades of Oregon. * WHEN...From 5 PM Wednesday to 11 PM PDT Thursday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous.

Have a winter emergency driving kit readily available. Common items to include: flashlight, batteries, blankets, a shovel, water, non-perishable food items, tire chains, etc. Be aware that walking surfaces may be slick. Walk with extra care. For the latest road conditions and chain restrictions in Oregon, call 5 1 1, or visit: www.tripcheck.com. For the latest road conditions and chain restrictions in Washington, visit: wsdot.com/travel/real-time/map
Tuesday, March 11, 2025

Weather Forecast

Conditions: Overcast
Average Temperature: 45.6°F
Average Humidity: 93%
Chance of Rain: 0%
Wind: 7.2 mph
UV Index: 0.3

Air Quality

AQI: 2 - Moderate
PM2.5: 22.91 μg/m3
PM10: 26.28 μg/m3
Carbon Monoxide: 770.04 μg/m3
Nitrogen Dioxide: 61.33 μg/m3
Sulphur Dioxide: 6.22 μg/m3
Ozone: 36.28 μg/m3

Astronomical

Sunrise: 7:30 AM
Sun Transit: 12:00 AM
Sunset: 7:12 PM
Daylight: 11 hrs 42 mins
Moonrise: 4:42 PM
Moon Transit: 12:00 AM
Moonset: 6:44 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 92.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
6:38 AM - 9:08 AM

Minor Periods

4:12 PM - 5:42 PM
6:14 AM - 7:44 AM

Action Rating: 3 out of 5

Wednesday, March 12, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 47°F
Average Humidity: 86%
Chance of Rain: 88%
Wind: 8.9 mph
UV Index: 0.2

Air Quality

AQI: 1 - Good
PM2.5: 8.41 μg/m3
PM10: 9.38 μg/m3
Carbon Monoxide: 482.48 μg/m3
Nitrogen Dioxide: 25.35 μg/m3
Sulphur Dioxide: 2.89 μg/m3
Ozone: 62 μg/m3

Astronomical

Sunrise: 7:28 AM
Sun Transit: 12:00 AM
Sunset: 7:13 PM
Daylight: 11 hrs 45 mins
Moonrise: 5:51 PM
Moon Transit: 12:00 AM
Moonset: 7:03 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
7:22 AM - 9:52 AM

Minor Periods

5:21 PM - 6:51 PM
6:33 AM - 8:03 AM

Action Rating: 4 out of 5

Thursday, March 13, 2025

Weather Forecast

Conditions: Mist
Average Temperature: 41.7°F
Average Humidity: 87%
Chance of Rain: 0%
Wind: 12.3 mph
UV Index: 0.6

Air Quality

AQI: 1 - Good
PM2.5: 3.28 μg/m3
PM10: 3.81 μg/m3
Carbon Monoxide: 390.79 μg/m3
Nitrogen Dioxide: 13.56 μg/m3
Sulphur Dioxide: 2.23 μg/m3
Ozone: 71.44 μg/m3

Astronomical

Sunrise: 7:26 AM
Sun Transit: 12:00 AM
Sunset: 7:14 PM
Daylight: 11 hrs 48 mins
Moonrise: 6:57 PM
Moon Transit: 12:42 AM
Moonset: 7:20 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:12 AM - 2:42 AM
8:03 AM - 10:33 AM

Minor Periods

6:27 PM - 7:57 PM
6:50 AM - 8:20 AM

Action Rating: 3 out of 5

Friday, March 14, 2025

Weather Forecast

Conditions: Heavy rain
Average Temperature: 39.4°F
Average Humidity: 92%
Chance of Rain: 86%
Wind: 13.9 mph
UV Index: 0.2

Air Quality

AQI: 1 - Good
PM2.5: 7.76 μg/m3
PM10: 9.82 μg/m3
Carbon Monoxide: 405.22 μg/m3
Nitrogen Dioxide: 19.4 μg/m3
Sulphur Dioxide: 2.79 μg/m3
Ozone: 63.32 μg/m3

Astronomical

Sunrise: 7:24 AM
Sun Transit: 12:00 AM
Sunset: 7:16 PM
Daylight: 11 hrs 52 mins
Moonrise: 8:02 PM
Moon Transit: 1:22 AM
Moonset: 7:35 AM
Moon Phase: Full
Moon Illumination: 99.6%

Best Times for Fishing or Hunting

Major Periods

12:52 AM - 3:22 AM
8:43 AM - 11:13 AM

Minor Periods

7:32 PM - 9:02 PM
7:05 AM - 8:35 AM

Action Rating: 5 out of 5

Saturday, March 15, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 42.7°F
Average Humidity: 91%
Chance of Rain: 89%
Wind: 11.6 mph
UV Index: 0.2

Air Quality

AQI: 1 - Good
PM2.5: 6.39 μg/m3
PM10: 9.42 μg/m3
Carbon Monoxide: 319.2 μg/m3
Nitrogen Dioxide: 8.44 μg/m3
Sulphur Dioxide: 1.3 μg/m3
Ozone: 74.54 μg/m3

Astronomical

Sunrise: 7:22 AM
Sun Transit: 12:00 AM
Sunset: 7:17 PM
Daylight: 11 hrs 55 mins
Moonrise: 9:07 PM
Moon Transit: 2:02 AM
Moonset: 7:50 AM
Moon Phase: Full
Moon Illumination: 97.0%

Best Times for Fishing or Hunting

Major Periods

1:32 AM - 4:02 AM
9:23 AM - 11:53 AM

Minor Periods

8:37 PM - 10:07 PM
7:20 AM - 8:50 AM

Action Rating: 4 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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