Water Temperature of the Coast Fork Willamette River in Cottage Grove, OR

Current Water Temperature

52.7°F

Measurement Time: Wednesday, November 4, 2026, 12:40 AM PST

Temperature Locations

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Local Points of Interest

Cottage Grove Lake; Cottage Grove Dam

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Coast Fork Willamette River

Station Name: COAST FORK WILLAMETTE R BLW COTTAGE GROVE DAM, OR
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 738 feet

Nearest Address:
75800 Reservoir Rd
Cottage Grove, OR 97424
Lane County

GPS Coordinates: 43.72067785, -123.0497994

Nearby Water Temperatures

Coast Fork Willamette River, London, OR (5.8 mi)
Row River, Cottage Grove, OR (5.8 mi)
Row River, Dorena, OR (8.9 mi)
Middle Fork Willamette River, Fall Creek, OR (18.8 mi)
Cedar Creek, Thurston, OR (24.3 mi)
McKenzie River, Springfield, OR (24.6 mi)
Middle Fork Willamette River, Oakridge, OR (25 mi)
Camp Creek, Springfield, OR (25.5 mi)
Willamette River , Eugene, OR (25.8 mi)
Rock Creek, Glide, OR (26 mi)
McKenzie River, Eugene, OR (27.1 mi)
North Fork Middle Fork Willamette River, Westfir, OR (27.3 mi)
North Umpqua River, Idleyld Park, OR (27.5 mi)
McKenzie River, Walterville, OR (27.8 mi)
Long Tom River, Alvadore, OR (30.5 mi)

Weather for Cottage Grove, Oregon

Current Weather

42.5°F
Sunny
Conditions: Sunny
Humidity: 76%
Feels Like: 37.9°F
Wind: SSE 2.7 mph
Wind Gusts: 4.9 mph
Pressure: 30.11 in
Precipitation: 0 in
Cloud Cover: 5%
Visibility: 6 mi
UV Index: 0.2

Weather Forecast

Sunny
Wed
H: 60°F
L: 36°F
Overcast
Thu
H: 62°F
L: 39°F
Overcast
Fri
H: 65°F
L: 38°F

Air Quality

AQI: 2 - Moderate
PM2.5: 19.6 μg/m3
PM10: 21.2 μg/m3
Carbon Monoxide: 184 μg/m3
Nitrogen Dioxide: 20.6 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 10 μg/m3

Astronomical

Sunrise: 6:52 AM
Sun Transit: 11:55 AM
Sunset: 4:59 PM
Daylight: 10 hrs 6 mins
Moonrise: 2:00 AM
Moon Transit: 8:28 AM
Moonset: 2:46 PM
Moon Phase: Last Quarter
Moon Illumination: 18.5%

Best Times for Fishing or Hunting

Major Periods

7:58 AM - 10:28 AM
3:48 PM - 6:18 PM

Minor Periods

2:16 PM - 3:46 PM
1:30 AM - 3:00 AM

Action Rating: 2 out of 5

Dense Fog Advisory issued November 4 at 3:39AM PST until November 4 at 10:00AM PST by NWS Portland OR

Effective: Wed November 4, 2026, 3:39 AM
Expires: Wed November 4, 2026, 10:00 AM

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Benton County Lowlands, Lane County Lowlands, and Linn County Lowlands. * WHEN...Until 10 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous.
Wednesday, November 4, 2026

Weather Forecast

Conditions: Sunny
Average Temperature: 47.2°F
Average Humidity: 78%
Chance of Rain: 59%
Wind: 5.6 mph
UV Index: 1.8

Astronomical

Sunrise: 6:52 AM
Sun Transit: 11:55 AM
Sunset: 4:59 PM
Daylight: 10 hrs 6 mins
Moonrise: 2:00 AM
Moon Transit: 8:28 AM
Moonset: 2:46 PM
Moon Phase: Last Quarter
Moon Illumination: 18.5%

Best Times for Fishing or Hunting

Major Periods

7:58 AM - 10:28 AM
3:48 PM - 6:18 PM

Minor Periods

2:16 PM - 3:46 PM
1:30 AM - 3:00 AM

Action Rating: 2 out of 5

Thursday, November 5, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 48.6°F
Average Humidity: 77%
Chance of Rain: 33%
Wind: 4 mph
UV Index: 2.2

Astronomical

Sunrise: 6:54 AM
Sun Transit: 11:55 AM
Sunset: 4:57 PM
Daylight: 10 hrs 4 mins
Moonrise: 3:09 AM
Moon Transit: 9:12 AM
Moonset: 3:05 PM
Moon Phase: Waning Crescent
Moon Illumination: 10.6%

Best Times for Fishing or Hunting

Major Periods

8:42 AM - 11:12 AM
4:32 PM - 7:02 PM

Minor Periods

2:35 PM - 4:05 PM
2:39 AM - 4:09 AM

Action Rating: 3 out of 5

Friday, November 6, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 48.4°F
Average Humidity: 57%
Chance of Rain: 8%
Wind: 4 mph
UV Index: 2.1

Astronomical

Sunrise: 6:55 AM
Sun Transit: 11:55 AM
Sunset: 4:56 PM
Daylight: 10 hrs 1 mins
Moonrise: 4:18 AM
Moon Transit: 9:56 AM
Moonset: 3:25 PM
Moon Phase: Waning Crescent
Moon Illumination: 4.7%

Best Times for Fishing or Hunting

Major Periods

5:16 PM - 7:46 PM
9:26 AM - 11:56 AM

Minor Periods

2:55 PM - 4:25 PM
3:48 AM - 5:18 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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