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

Current Water Temperature

72.0°F

Measurement Time: Wednesday, September 10, 2025, 7:00 PM PDT

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 / 225 meters

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 (25.0 mi)
Camp Creek, Springfield, OR (25.5 mi)
Willamette River , Eugene, OR (25.8 mi)
Rock Creek, Glide, OR (26.0 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

61°F
Overcast
Conditions: Overcast
Humidity: 87%
Feels Like: 61°F
Wind: SSW 2.2 mph
Wind Gusts: 4.2 mph
Pressure: 29.95 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Overcast
Thu
H: 67°F
L: 50°F
Partly Cloudy
Fri
H: 77°F
L: 55°F
Sunny
Sat
H: 83°F
L: 52°F
Moderate rain
Sun
H: 65°F
L: 45°F
Fog
Mon
H: 69°F
L: 41°F

Air Quality

PM2.5: 12.58 μg/m3
PM10: 17.21 μg/m3
Carbon Monoxide: 242.35 μg/m3
Nitrogen Dioxide: 5.92 μg/m3
Sulphur Dioxide: 0.93 μg/m3
Ozone: 52 μg/m3

Astronomical

Sunrise: 6:48 AM
Sun Transit: 1:08 PM
Sunset: 7:29 PM
Daylight: 12 hrs 41 mins
Moonrise: 9:19 PM
Moon Transit: 4:11 AM
Moonset: 11:49 AM
Moon Phase: Waning Gibbous
Moon Illumination: 77.5%

Best Times for Fishing or Hunting

Major Periods

3:41 AM - 6:11 AM
11:34 AM - 2:04 PM

Minor Periods

8:49 PM - 10:19 PM
11:19 AM - 12:49 AM

Action Rating: 2 out of 5

Thursday, September 11, 2025

Weather Forecast

Conditions: Overcast
Average Temperature: 60.4°F
Average Humidity: 82%
Chance of Rain: 0%
Wind: 5.8 mph
UV Index: 1.1

Air Quality

AQI: 1 - Good
PM2.5: 11.2 μg/m3
PM10: 13.93 μg/m3
Carbon Monoxide: 277.87 μg/m3
Nitrogen Dioxide: 6.8 μg/m3
Sulphur Dioxide: 0.61 μg/m3
Ozone: 56.16 μg/m3

Astronomical

Sunrise: 6:48 AM
Sun Transit: 1:08 PM
Sunset: 7:29 PM
Daylight: 12 hrs 41 mins
Moonrise: 9:19 PM
Moon Transit: 4:11 AM
Moonset: 11:49 AM
Moon Phase: Waning Gibbous
Moon Illumination: 77.5%

Best Times for Fishing or Hunting

Major Periods

3:41 AM - 6:11 AM
11:34 AM - 2:04 PM

Minor Periods

8:49 PM - 10:19 PM
11:19 AM - 12:49 AM

Action Rating: 2 out of 5

Friday, September 12, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 63.6°F
Average Humidity: 70%
Chance of Rain: 0%
Wind: 5.4 mph
UV Index: 1.4

Air Quality

AQI: 1 - Good
PM2.5: 13.88 μg/m3
PM10: 16.92 μg/m3
Carbon Monoxide: 307.99 μg/m3
Nitrogen Dioxide: 6.76 μg/m3
Sulphur Dioxide: 0.81 μg/m3
Ozone: 58.92 μg/m3

Astronomical

Sunrise: 6:49 AM
Sun Transit: 1:08 PM
Sunset: 7:27 PM
Daylight: 12 hrs 38 mins
Moonrise: 9:57 PM
Moon Transit: 5:07 AM
Moonset: 1:11 PM
Moon Phase: Waning Gibbous
Moon Illumination: 67.4%

Best Times for Fishing or Hunting

Major Periods

4:37 AM - 7:07 AM
12:32 AM - 3:02 PM

Minor Periods

9:27 PM - 10:57 PM
12:41 AM - 2:11 PM

Action Rating: 3 out of 5

Saturday, September 13, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 66.4°F
Average Humidity: 57%
Chance of Rain: 0%
Wind: 11 mph
UV Index: 1.5

Air Quality

AQI: 2 - Moderate
PM2.5: 22.87 μg/m3
PM10: 24.33 μg/m3
Carbon Monoxide: 343.14 μg/m3
Nitrogen Dioxide: 19.25 μg/m3
Sulphur Dioxide: 0.66 μg/m3
Ozone: 58.88 μg/m3

Astronomical

Sunrise: 6:50 AM
Sun Transit: 1:07 PM
Sunset: 7:25 PM
Daylight: 12 hrs 35 mins
Moonrise: 10:46 PM
Moon Transit: 6:07 AM
Moonset: 2:28 PM
Moon Phase: Waning Gibbous
Moon Illumination: 56.4%

Best Times for Fishing or Hunting

Major Periods

5:37 AM - 8:07 AM
1:32 PM - 4:02 PM

Minor Periods

10:16 PM - 11:46 PM
1:58 PM - 3:28 PM

Action Rating: 2 out of 5

Sunday, September 14, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 56°F
Average Humidity: 89%
Chance of Rain: 84%
Wind: 4.5 mph
UV Index: 0.5

Air Quality

AQI: 1 - Good
PM2.5: 8.82 μg/m3
PM10: 11.38 μg/m3
Carbon Monoxide: 304.97 μg/m3
Nitrogen Dioxide: 16.74 μg/m3
Sulphur Dioxide: 0.83 μg/m3
Ozone: 39.77 μg/m3

Astronomical

Sunrise: 6:51 AM
Sun Transit: 1:07 PM
Sunset: 7:23 PM
Daylight: 12 hrs 32 mins
Moonrise: 11:46 PM
Moon Transit: 7:09 AM
Moonset: 3:35 PM
Moon Phase: Last Quarter
Moon Illumination: 45.1%

Best Times for Fishing or Hunting

Major Periods

6:39 AM - 9:09 AM
2:34 PM - 5:04 PM

Minor Periods

12:00 AM - 12:00 AM
3:05 PM - 4:35 PM

Action Rating: 3 out of 5

Monday, September 15, 2025

Weather Forecast

Conditions: Fog
Average Temperature: 49.6°F
Average Humidity: 85%
Chance of Rain: 0%
Wind: 9.2 mph
UV Index: 0

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: 6:52 AM
Sun Transit: 1:07 PM
Sunset: 7:21 PM
Daylight: 12 hrs 29 mins
Moonrise: 12:46 AM
Moon Transit: 8:11 AM
Moonset: 4:30 PM
Moon Phase: Last Quarter
Moon Illumination: 34.0%

Best Times for Fishing or Hunting

Major Periods

7:41 AM - 10:11 AM
3:35 PM - 6:05 PM

Minor Periods

4:00 PM - 5:30 PM
12:00 AM - 12:00 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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