Water Temperature of the Coast Fork Willamette River in Cottage Grove, OR
Current Water Temperature
Measurement Time: Tuesday, November 18, 2025, 6:20 PM PST
Temperature Locations
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Local Points of Interest
Cottage Grove Lake; Cottage Grove DamSponsored Content
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

Humidity: 100%
Feels Like: 32°F
Wind: ESE 2.7 mph
Wind Gusts: 5.4 mph
Precipitation: 0 in
Cloud Cover: 60%
Visibility: 0 mi
UV Index: 0
Five Day Weather Forecast

Wed
H: 62°F
L: 34°F

Thu
H: 60°F
L: 48°F

Fri
H: 53°F
L: 42°F

Sat
H: 57°F
L: 39°F

Sun
H: 56°F
L: 37°F
Air Quality
Nitrogen Dioxide: 14.75 μg/m3
Sulphur Dioxide: 2.55 μg/m3
Ozone: 18 μg/m3
Astronomical
Sun Transit: 11:57 AM
Sunset: 4:43 PM
Daylight: 9 hrs 31 mins
Moon Transit: 11:31 AM
Moonset: 4:01 PM
Moon Phase: New
Moon Illumination: 0.3%
Best Times for Fishing or Hunting
Major Periods
6:52 PM - 9:22 PM11:01 AM - 1:31 PM
Minor Periods
3:31 PM - 5:01 PM6:26 AM - 7:56 AM
Action Rating: 4 out of 5
Beach Hazards Statement issued November 18 at 2:30PM PST until November 24 at 4:00AM PST by NWS Portland OR
Effective: Tue November 18, 2025, 2:30 PM
Expires: Wed November 19, 2025, 4:00 PM
* WHAT...Sneaker waves possible. * WHERE...North and Central Coast of Oregon, and South Washington Coast. * WHEN...From late Wednesday night through late Sunday night. * IMPACTS...Waves can run up significantly farther on a beach than normal, including over rocks and jetties. Sneaker waves can suddenly knock people off of their feet and quickly pull them into the frigid ocean which may lead to serious injury or drowning. * ADDITIONAL DETAILS...A Beach Hazards Statement is issued when sneaker waves create potentially life-threatening conditions in the surf zone. Caution should be used when in or near the water. Always keep an eye on the waves, and be especially watchful of children. Those participating in razor clam digs should exercise caution.
Remain out of the water to avoid hazardous swimming conditions.
High Surf Advisory issued November 18 at 2:06PM PST until November 21 at 4:00AM PST by NWS Medford OR
Effective: Tue November 18, 2025, 2:06 PM
Expires: Wed November 19, 2025, 5:45 AM
* WHAT...Large breaking waves of 20 to 24 feet. * WHERE...South Central Oregon Coast and Curry County Coast. * WHEN...From 10 AM Thursday to 4 AM PST Friday. * IMPACTS...Large breaking waves will create hazardous conditions along and within the surf zone, and could inundate beaches and low lying shorelines. Beach erosion is possible, and exposed infrastructure may be damaged. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr
Stay away from the surf zone and off of jetties. Area beaches may become hazardous due to dangerous surf conditions.
Weather Forecast
Average Temperature: 45.2°F
Average Humidity: 77%
Wind: 3.4 mph
UV Index: 0.2
Air Quality
Nitrogen Dioxide: 13.93 μg/m3
Sulphur Dioxide: 2.55 μg/m3
Ozone: 34.72 μg/m3
Astronomical
Sun Transit: 11:57 AM
Sunset: 4:43 PM
Daylight: 9 hrs 31 mins
Moon Transit: 11:31 AM
Moonset: 4:01 PM
Moon Phase: New
Moon Illumination: 0.3%
Best Times for Fishing or Hunting
Major Periods
6:52 PM - 9:22 PM11:01 AM - 1:31 PM
Minor Periods
3:31 PM - 5:01 PM6:26 AM - 7:56 AM
Action Rating: 4 out of 5
Weather Forecast
Average Temperature: 51.5°F
Average Humidity: 67%
Wind: 4.3 mph
UV Index: 0.1
Air Quality
Nitrogen Dioxide: 10.01 μg/m3
Sulphur Dioxide: 1.71 μg/m3
Ozone: 59.4 μg/m3
Astronomical
Sun Transit: 11:57 AM
Sunset: 4:42 PM
Daylight: 9 hrs 29 mins
Moon Transit: 12:19 AM
Moonset: 4:34 PM
Moon Phase: New
Moon Illumination: 2.7%
Best Times for Fishing or Hunting
Major Periods
7:40 PM - 10:10 PM11:49 AM - 2:19 PM
Minor Periods
4:04 PM - 5:34 PM7:30 AM - 9:00 AM
Action Rating: 4 out of 5
Weather Forecast
Average Temperature: 45.9°F
Average Humidity: 80%
Wind: 3.6 mph
UV Index: 0.3
Air Quality
Nitrogen Dioxide: 21.89 μg/m3
Sulphur Dioxide: 2.43 μg/m3
Ozone: 33.64 μg/m3
Astronomical
Sun Transit: 11:58 AM
Sunset: 4:42 PM
Daylight: 9 hrs 27 mins
Moon Transit: 1:09 PM
Moonset: 5:15 PM
Moon Phase: New
Moon Illumination: 0.5%
Best Times for Fishing or Hunting
Major Periods
8:31 PM - 11:01 PM12:39 AM - 3:09 PM
Minor Periods
4:45 PM - 6:15 PM8:32 AM - 10:02 AM
Action Rating: 4 out of 5
Weather Forecast
Average Temperature: 44.9°F
Average Humidity: 83%
Wind: 2.9 mph
UV Index: 0.3
Air Quality
Nitrogen Dioxide: 26.99 μg/m3
Sulphur Dioxide: 3.73 μg/m3
Ozone: 21.52 μg/m3
Astronomical
Sun Transit: 11:58 AM
Sunset: 4:41 PM
Daylight: 9 hrs 25 mins
Moon Transit: 2:01 PM
Moonset: 6:06 PM
Moon Phase: New
Moon Illumination: 3.3%
Best Times for Fishing or Hunting
Major Periods
9:23 PM - 11:53 PM1:31 PM - 4:01 PM
Minor Periods
5:36 PM - 7:06 PM9:28 AM - 10:58 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 42°F
Average Humidity: 85%
Wind: 11.2 mph
UV Index: 0
Air Quality
Nitrogen Dioxide: 31.61 μg/m3
Sulphur Dioxide: 3.7 μg/m3
Ozone: 10.62 μg/m3
Astronomical
Sun Transit: 11:58 AM
Sunset: 4:40 PM
Daylight: 9 hrs 23 mins
Moon Transit: 2:53 PM
Moonset: 7:05 PM
Moon Phase: Waxing Crescent
Moon Illumination: 8.5%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM2:23 PM - 4:53 PM
Minor Periods
6:35 PM - 8:05 PM10:16 AM - 11:46 AM
Action Rating: 3 out of 5
