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

Current Water Temperature

70.5°F

Measurement Time: Friday, September 4, 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

63°F
Showers And Thunderstorms
Showers And Thunderstorms
76%
SSW 1 mph
55°F

Weather Forecast

Showers And Thunderstorms
This Afternoon
68°F - Showers And Thunderstorms
Showers And Thunderstorms Likely then Areas Of Fog
Tonight
45°F - Showers And Thunderstorms Likely then Areas Of Fog
Patchy Fog then Mostly Sunny
Saturday
73°F - Patchy Fog then Mostly Sunny
Mostly Cloudy then Patchy Fog
Saturday Night
46°F - Mostly Cloudy then Patchy Fog
Chance Showers And Thunderstorms
Sunday
71°F - Chance Showers And Thunderstorms
Chance Rain Showers then Patchy Fog
Sunday Night
47°F - Chance Rain Showers then Patchy Fog
Patchy Fog then Mostly Sunny
Labor Day
75°F - Patchy Fog then Mostly Sunny
Partly Cloudy
Monday Night
46°F - Partly Cloudy
Mostly Sunny
Tuesday
77°F - Mostly Sunny
Partly Cloudy
Tuesday Night
50°F - Partly Cloudy
Mostly Sunny
Wednesday
83°F - Mostly Sunny
Mostly Clear
Wednesday Night
53°F - Mostly Clear
Chance Light Rain
Thursday
81°F - Chance Light Rain
Chance Light Rain
Thursday Night
52°F - Chance Light Rain

Astronomical

Sunrise: 6:40 AM
Sun Transit: 1:11 PM
Sunset: 7:42 PM
Daylight: 13 hrs 2 mins
Moonrise: 11:52 PM
Moon Transit: 7:12 AM
Moonset: 3:34 PM
Moon Phase: Last Quarter
Moon Illumination: 38.0%

Best Times for Fishing or Hunting

Major Periods

6:42 AM - 9:12 AM
2:37 PM - 5:07 PM

Minor Periods

12:00 AM - 12:00 AM
3:04 PM - 4:34 PM

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: 6:40 AM
Sun Transit: 1:11 PM
Sunset: 7:42 PM
Daylight: 13 hrs 2 mins
Moonrise: 11:52 PM
Moon Transit: 7:12 AM
Moonset: 3:34 PM
Moon Phase: Last Quarter
Moon Illumination: 38.0%

Best Times for Fishing or Hunting

Major Periods

6:42 AM - 9:12 AM
2:37 PM - 5:07 PM

Minor Periods

12:00 AM - 12:00 AM
3:04 PM - 4:34 PM

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: 6:40 AM
Sun Transit: 1:11 PM
Sunset: 7:42 PM
Daylight: 13 hrs 2 mins
Moonrise: 11:52 PM
Moon Transit: 7:12 AM
Moonset: 3:34 PM
Moon Phase: Last Quarter
Moon Illumination: 38.0%

Best Times for Fishing or Hunting

Major Periods

6:42 AM - 9:12 AM
2:37 PM - 5:07 PM

Minor Periods

12:00 AM - 12:00 AM
3:04 PM - 4:34 PM

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: 6:41 AM
Sun Transit: 1:10 PM
Sunset: 7:40 PM
Daylight: 12 hrs 59 mins
Moonrise: 12:52 AM
Moon Transit: 8:15 AM
Moonset: 4:35 PM
Moon Phase: Last Quarter
Moon Illumination: 27.4%

Best Times for Fishing or Hunting

Major Periods

7:45 AM - 10:15 AM
3:40 PM - 6:10 PM

Minor Periods

4:05 PM - 5:35 PM
12:00 AM - 12:00 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: 6:41 AM
Sun Transit: 1:10 PM
Sunset: 7:40 PM
Daylight: 12 hrs 59 mins
Moonrise: 12:52 AM
Moon Transit: 8:15 AM
Moonset: 4:35 PM
Moon Phase: Last Quarter
Moon Illumination: 27.4%

Best Times for Fishing or Hunting

Major Periods

7:45 AM - 10:15 AM
3:40 PM - 6:10 PM

Minor Periods

4:05 PM - 5:35 PM
12:00 AM - 12:00 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: 6:42 AM
Sun Transit: 1:10 PM
Sunset: 7:38 PM
Daylight: 12 hrs 56 mins
Moonrise: 1:01 AM
Moon Transit: 9:17 AM
Moonset: 5:23 PM
Moon Phase: Last Quarter
Moon Illumination: 18.0%

Best Times for Fishing or Hunting

Major Periods

8:47 AM - 11:17 AM
4:42 PM - 7:12 PM

Minor Periods

4:53 PM - 6:23 PM
12:31 AM - 2:01 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: 6:42 AM
Sun Transit: 1:10 PM
Sunset: 7:38 PM
Daylight: 12 hrs 56 mins
Moonrise: 1:01 AM
Moon Transit: 9:17 AM
Moonset: 5:23 PM
Moon Phase: Last Quarter
Moon Illumination: 18.0%

Best Times for Fishing or Hunting

Major Periods

8:47 AM - 11:17 AM
4:42 PM - 7:12 PM

Minor Periods

4:53 PM - 6:23 PM
12:31 AM - 2:01 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: 6:43 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

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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