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

Current Water Temperature

70.7°F

Measurement Time: Monday, September 7, 2026, 7:50 AM PDT

Temperature Locations

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Local Points of Interest

Cottage Grove Lake; Cottage Grove Dam

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

73°F
Sunny
Sunny
47%
N 3 mph
52°F

Weather Forecast

Sunny
Labor Day
73°F - Sunny
Clear then Patchy Fog
Tonight
45°F - Clear then Patchy Fog
Patchy Fog then Sunny
Tuesday
79°F - Patchy Fog then Sunny
Mostly Clear
Tuesday Night
51°F - Mostly Clear
Sunny
Wednesday
87°F - Sunny
Clear
Wednesday Night
55°F - Clear
Sunny
Thursday
81°F - Sunny
Partly Cloudy
Thursday Night
49°F - Partly Cloudy
Mostly Sunny
Friday
71°F - Mostly Sunny
Partly Cloudy then Slight Chance Light Rain
Friday Night
46°F - Partly Cloudy then Slight Chance Light Rain
Chance Light Rain
Saturday
67°F - Chance Light Rain
Slight Chance Light Rain
Saturday Night
46°F - Slight Chance Light Rain
Sunny
Sunday
71°F - Sunny
Mostly Clear
Sunday Night
47°F - Mostly Clear

Astronomical

Sunrise: 6:43 AM
Sun Transit: 1:10 PM
Sunset: 7:36 PM
Daylight: 12 hrs 53 mins
Moonrise: 2:19 AM
Moon Transit: 10:17 AM
Moonset: 6:01 PM
Moon Phase: Waning Crescent
Moon Illumination: 10.1%

Best Times for Fishing or Hunting

Major Periods

5:40 PM - 8:10 PM
9:47 AM - 12:17 AM

Minor Periods

5:31 PM - 7:01 PM
1:49 AM - 3:19 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:43 AM
Sun Transit: 1:10 PM
Sunset: 7:36 PM
Daylight: 12 hrs 53 mins
Moonrise: 2:19 AM
Moon Transit: 10:17 AM
Moonset: 6:01 PM
Moon Phase: Waning Crescent
Moon Illumination: 10.1%

Best Times for Fishing or Hunting

Major Periods

5:40 PM - 8:10 PM
9:47 AM - 12:17 AM

Minor Periods

5:31 PM - 7:01 PM
1:49 AM - 3:19 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:43 AM
Sun Transit: 1:10 PM
Sunset: 7:36 PM
Daylight: 12 hrs 53 mins
Moonrise: 2:19 AM
Moon Transit: 10:17 AM
Moonset: 6:01 PM
Moon Phase: Waning Crescent
Moon Illumination: 10.1%

Best Times for Fishing or Hunting

Major Periods

5:40 PM - 8:10 PM
9:47 AM - 12:17 AM

Minor Periods

5:31 PM - 7:01 PM
1:49 AM - 3:19 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:44 AM
Sun Transit: 1:09 PM
Sunset: 7:35 PM
Daylight: 12 hrs 51 mins
Moonrise: 3:39 AM
Moon Transit: 11:12 AM
Moonset: 6:31 PM
Moon Phase: Waning Crescent
Moon Illumination: 4.4%

Best Times for Fishing or Hunting

Major Periods

6:34 PM - 9:04 PM
10:42 AM - 1:12 PM

Minor Periods

6:01 PM - 7:31 PM
3:09 AM - 4:39 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:44 AM
Sun Transit: 1:09 PM
Sunset: 7:35 PM
Daylight: 12 hrs 51 mins
Moonrise: 3:39 AM
Moon Transit: 11:12 AM
Moonset: 6:31 PM
Moon Phase: Waning Crescent
Moon Illumination: 4.4%

Best Times for Fishing or Hunting

Major Periods

6:34 PM - 9:04 PM
10:42 AM - 1:12 PM

Minor Periods

6:01 PM - 7:31 PM
3:09 AM - 4:39 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:45 AM
Sun Transit: 1:09 PM
Sunset: 7:33 PM
Daylight: 12 hrs 48 mins
Moonrise: 4:58 AM
Moon Transit: 12:03 AM
Moonset: 6:55 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.9%

Best Times for Fishing or Hunting

Major Periods

7:25 PM - 9:55 PM
11:33 AM - 2:03 PM

Minor Periods

6:25 PM - 7:55 PM
4:28 AM - 5:58 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:45 AM
Sun Transit: 1:09 PM
Sunset: 7:33 PM
Daylight: 12 hrs 48 mins
Moonrise: 4:58 AM
Moon Transit: 12:03 AM
Moonset: 6:55 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.9%

Best Times for Fishing or Hunting

Major Periods

7:25 PM - 9:55 PM
11:33 AM - 2:03 PM

Minor Periods

6:25 PM - 7:55 PM
4:28 AM - 5:58 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:46 AM
Sun Transit: 1:09 PM
Sunset: 7:31 PM
Daylight: 12 hrs 45 mins
Moonrise: 6:14 AM
Moon Transit: 12:52 AM
Moonset: 7:16 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

8:12 PM - 10:42 PM
12:22 AM - 2:52 PM

Minor Periods

6:46 PM - 8:16 PM
5:44 AM - 7:14 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:46 AM
Sun Transit: 1:09 PM
Sunset: 7:31 PM
Daylight: 12 hrs 45 mins
Moonrise: 6:14 AM
Moon Transit: 12:52 AM
Moonset: 7:16 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

8:12 PM - 10:42 PM
12:22 AM - 2:52 PM

Minor Periods

6:46 PM - 8:16 PM
5:44 AM - 7:14 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:47 AM
Sun Transit: 1:08 PM
Sunset: 7:29 PM
Daylight: 12 hrs 42 mins
Moonrise: 7:27 AM
Moon Transit: 1:38 PM
Moonset: 7:36 PM
Moon Phase: New
Moon Illumination: 1.7%

Best Times for Fishing or Hunting

Major Periods

8:57 PM - 11:27 PM
1:08 PM - 3:38 PM

Minor Periods

7:06 PM - 8:36 PM
6:57 AM - 8:27 AM

Action Rating: 5 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:47 AM
Sun Transit: 1:08 PM
Sunset: 7:29 PM
Daylight: 12 hrs 42 mins
Moonrise: 7:27 AM
Moon Transit: 1:38 PM
Moonset: 7:36 PM
Moon Phase: New
Moon Illumination: 1.7%

Best Times for Fishing or Hunting

Major Periods

8:57 PM - 11:27 PM
1:08 PM - 3:38 PM

Minor Periods

7:06 PM - 8:36 PM
6:57 AM - 8:27 AM

Action Rating: 5 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:49 AM
Sun Transit: 1:08 PM
Sunset: 7:27 PM
Daylight: 12 hrs 39 mins
Moonrise: 8:39 AM
Moon Transit: 2:23 PM
Moonset: 7:56 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:53 PM - 4:23 PM

Minor Periods

7:26 PM - 8:56 PM
8:09 AM - 9:39 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:49 AM
Sun Transit: 1:08 PM
Sunset: 7:27 PM
Daylight: 12 hrs 39 mins
Moonrise: 8:39 AM
Moon Transit: 2:23 PM
Moonset: 7:56 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:53 PM - 4:23 PM

Minor Periods

7:26 PM - 8:56 PM
8:09 AM - 9:39 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:50 AM
Sun Transit: 1:08 PM
Sunset: 7:26 PM
Daylight: 12 hrs 36 mins
Moonrise: 9:49 AM
Moon Transit: 3:08 PM
Moonset: 8:18 PM
Moon Phase: New
Moon Illumination: 2.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:38 PM - 5:08 PM

Minor Periods

7:48 PM - 9:18 PM
9:19 AM - 10:49 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:50 AM
Sun Transit: 1:08 PM
Sunset: 7:26 PM
Daylight: 12 hrs 36 mins
Moonrise: 9:49 AM
Moon Transit: 3:08 PM
Moonset: 8:18 PM
Moon Phase: New
Moon Illumination: 2.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:38 PM - 5:08 PM

Minor Periods

7:48 PM - 9:18 PM
9:19 AM - 10:49 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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