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

Current Water Temperature

73.6°F

Measurement Time: Wednesday, August 26, 2026, 7:30 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

82°F
Mostly Sunny
Mostly Sunny
36%
W 3 mph
52°F

Weather Forecast

Mostly Sunny
This Afternoon
84°F - Mostly Sunny
Mostly Cloudy
Tonight
53°F - Mostly Cloudy
Patchy Fog then Mostly Sunny
Thursday
81°F - Patchy Fog then Mostly Sunny
Mostly Clear then Areas Of Fog
Thursday Night
49°F - Mostly Clear then Areas Of Fog
Areas Of Fog then Mostly Sunny
Friday
79°F - Areas Of Fog then Mostly Sunny
Mostly Clear then Patchy Fog
Friday Night
49°F - Mostly Clear then Patchy Fog
Patchy Fog then Mostly Sunny
Saturday
77°F - Patchy Fog then Mostly Sunny
Mostly Clear
Saturday Night
45°F - Mostly Clear
Sunny
Sunday
79°F - Sunny
Mostly Clear
Sunday Night
47°F - Mostly Clear
Sunny
Monday
79°F - Sunny
Partly Cloudy
Monday Night
49°F - Partly Cloudy
Mostly Sunny
Tuesday
77°F - Mostly Sunny
Partly Cloudy
Tuesday Night
49°F - Partly Cloudy

Astronomical

Sunrise: 6:30 AM
Sun Transit: 1:13 PM
Sunset: 7:58 PM
Daylight: 13 hrs 28 mins
Moonrise: 7:27 PM
Moon Transit: 12:00 AM
Moonset: 4:46 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 98.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
7:10 AM - 9:40 AM

Minor Periods

6:57 PM - 8:27 PM
4:16 AM - 5:46 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: 6:30 AM
Sun Transit: 1:13 PM
Sunset: 7:58 PM
Daylight: 13 hrs 28 mins
Moonrise: 7:27 PM
Moon Transit: 12:00 AM
Moonset: 4:46 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 98.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
7:10 AM - 9:40 AM

Minor Periods

6:57 PM - 8:27 PM
4:16 AM - 5:46 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: 6:30 AM
Sun Transit: 1:13 PM
Sunset: 7:58 PM
Daylight: 13 hrs 28 mins
Moonrise: 7:27 PM
Moon Transit: 12:00 AM
Moonset: 4:46 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 98.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
7:10 AM - 9:40 AM

Minor Periods

6:57 PM - 8:27 PM
4:16 AM - 5:46 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: 6:31 AM
Sun Transit: 1:13 PM
Sunset: 7:56 PM
Daylight: 13 hrs 25 mins
Moonrise: 7:48 PM
Moon Transit: 12:35 AM
Moonset: 5:54 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:05 AM - 2:35 AM
7:55 AM - 10:25 AM

Minor Periods

7:18 PM - 8:48 PM
5:24 AM - 6:54 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: 6:31 AM
Sun Transit: 1:13 PM
Sunset: 7:56 PM
Daylight: 13 hrs 25 mins
Moonrise: 7:48 PM
Moon Transit: 12:35 AM
Moonset: 5:54 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:05 AM - 2:35 AM
7:55 AM - 10:25 AM

Minor Periods

7:18 PM - 8:48 PM
5:24 AM - 6:54 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: 6:32 AM
Sun Transit: 1:13 PM
Sunset: 7:54 PM
Daylight: 13 hrs 23 mins
Moonrise: 8:08 PM
Moon Transit: 1:19 AM
Moonset: 7:02 AM
Moon Phase: Full
Moon Illumination: 98.7%

Best Times for Fishing or Hunting

Major Periods

12:49 AM - 3:19 AM
8:39 AM - 11:09 AM

Minor Periods

7:38 PM - 9:08 PM
6:32 AM - 8:02 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: 6:32 AM
Sun Transit: 1:13 PM
Sunset: 7:54 PM
Daylight: 13 hrs 23 mins
Moonrise: 8:08 PM
Moon Transit: 1:19 AM
Moonset: 7:02 AM
Moon Phase: Full
Moon Illumination: 98.7%

Best Times for Fishing or Hunting

Major Periods

12:49 AM - 3:19 AM
8:39 AM - 11:09 AM

Minor Periods

7:38 PM - 9:08 PM
6:32 AM - 8:02 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: 6:33 AM
Sun Transit: 1:13 PM
Sunset: 7:53 PM
Daylight: 13 hrs 20 mins
Moonrise: 8:27 PM
Moon Transit: 9:49 PM
Moonset: 8:12 AM
Moon Phase: Full
Moon Illumination: 95.0%

Best Times for Fishing or Hunting

Major Periods

9:22 AM - 11:52 AM
9:19 PM - 11:49 PM

Minor Periods

7:57 PM - 9:27 PM
7:42 AM - 9:12 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: 6:33 AM
Sun Transit: 1:13 PM
Sunset: 7:53 PM
Daylight: 13 hrs 20 mins
Moonrise: 8:27 PM
Moon Transit: 9:49 PM
Moonset: 8:12 AM
Moon Phase: Full
Moon Illumination: 95.0%

Best Times for Fishing or Hunting

Major Periods

9:22 AM - 11:52 AM
9:19 PM - 11:49 PM

Minor Periods

7:57 PM - 9:27 PM
7:42 AM - 9:12 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: 6:34 AM
Sun Transit: 1:12 PM
Sunset: 7:51 PM
Daylight: 13 hrs 17 mins
Moonrise: 8:47 PM
Moon Transit: 12:00 AM
Moonset: 9:22 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:00 AM - 12:00 AM

Minor Periods

8:17 PM - 9:47 PM
8:52 AM - 10:22 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: 6:34 AM
Sun Transit: 1:12 PM
Sunset: 7:51 PM
Daylight: 13 hrs 17 mins
Moonrise: 8:47 PM
Moon Transit: 12:00 AM
Moonset: 9:22 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:00 AM - 12:00 AM

Minor Periods

8:17 PM - 9:47 PM
8:52 AM - 10:22 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: 6:35 AM
Sun Transit: 1:12 PM
Sunset: 7:49 PM
Daylight: 13 hrs 14 mins
Moonrise: 9:09 PM
Moon Transit: 3:33 AM
Moonset: 10:35 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.9%

Best Times for Fishing or Hunting

Major Periods

3:03 AM - 5:33 AM
10:53 AM - 1:23 PM

Minor Periods

8:39 PM - 10:09 PM
10:05 AM - 11:35 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: 6:35 AM
Sun Transit: 1:12 PM
Sunset: 7:49 PM
Daylight: 13 hrs 14 mins
Moonrise: 9:09 PM
Moon Transit: 3:33 AM
Moonset: 10:35 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.9%

Best Times for Fishing or Hunting

Major Periods

3:03 AM - 5:33 AM
10:53 AM - 1:23 PM

Minor Periods

8:39 PM - 10:09 PM
10:05 AM - 11:35 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: 6:36 AM
Sun Transit: 1:12 PM
Sunset: 7:47 PM
Daylight: 13 hrs 11 mins
Moonrise: 9:36 PM
Moon Transit: 4:21 AM
Moonset: 11:49 AM
Moon Phase: Waning Gibbous
Moon Illumination: 71.2%

Best Times for Fishing or Hunting

Major Periods

3:51 AM - 6:21 AM
11:43 AM - 2:13 PM

Minor Periods

9:06 PM - 10:36 PM
11:19 AM - 12:49 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: 6:36 AM
Sun Transit: 1:12 PM
Sunset: 7:47 PM
Daylight: 13 hrs 11 mins
Moonrise: 9:36 PM
Moon Transit: 4:21 AM
Moonset: 11:49 AM
Moon Phase: Waning Gibbous
Moon Illumination: 71.2%

Best Times for Fishing or Hunting

Major Periods

3:51 AM - 6:21 AM
11:43 AM - 2:13 PM

Minor Periods

9:06 PM - 10:36 PM
11:19 AM - 12:49 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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