Water Temperature of the Coast Fork Willamette River in Cottage Grove, OR
Current Water Temperature
Measurement Time: Monday, October 20, 2025, 3:20 AM PDT
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: 45.3°F
Wind: NE 2.9 mph
Wind Gusts: 3.4 mph
Precipitation: 0 in
Cloud Cover: 60%
Visibility: 0 mi
UV Index: 1
Five Day Weather Forecast

Mon
H: 67°F
L: 43°F

Tue
H: 65°F
L: 44°F

Wed
H: 70°F
L: 50°F

Thu
H: 68°F
L: 49°F

Fri
H: 55°F
L: 45°F
Air Quality
Nitrogen Dioxide: 2.75 μg/m3
Sulphur Dioxide: 2.25 μg/m3
Ozone: 76 μg/m3
Astronomical
Sun Transit: 12:56 AM
Sunset: 6:20 PM
Daylight: 10 hrs 47 mins
Moon Transit: 12:23 AM
Moonset: 5:46 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.0%
Best Times for Fishing or Hunting
Major Periods
7:41 PM - 10:11 PM11:53 AM - 2:23 PM
Minor Periods
5:16 PM - 6:46 PM6:20 AM - 7:50 AM
Action Rating: 4 out of 5
Beach Hazards Statement issued October 20 at 3:50AM PDT until October 22 at 2:00PM PDT by NWS Portland OR
Effective: Mon October 20, 2025, 3:50 AM
Expires: Wed October 22, 2025, 2:00 PM
* WHAT...Sneaker waves possible. * WHERE...North and Central Coast of Oregon, and South Washington Coast. * WHEN...From late tonight through Wednesday afternoon. * 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 and pets. Those participating in razor clam digs should exercise caution.
Remain out of the water to avoid hazardous swimming conditions.
High Surf Advisory issued October 19 at 1:43PM PDT until October 20 at 8:00AM PDT by NWS Medford OR
Effective: Sun October 19, 2025, 1:43 PM
Expires: Mon October 20, 2025, 8:00 AM
* WHAT...For the High Surf Advisory, large breaking waves of 20 to 25 feet. For the Beach Hazards Statement, a high risk of sneaker waves. * WHERE...All beaches of Douglas, Coos and Curry Counties. * WHEN...For the High Surf Advisory, until 8 AM PDT Monday. For the Beach Hazards Statement, from Tuesday morning through Tuesday evening. * 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. Sneaker waves can run up significantly farther on beaches than normal, including over rocks and jetties. These waves can suddenly knock people off of their feet and quickly pull them into the cold ocean waters, resulting in serious injury or death. Waves may also lift driftwood logs, trapping anyone caught underneath. * ADDITIONAL DETAILS...The highest breaking waves are expected Sunday evening. Conditions may be just shy of high surf advisory levels as surf builds to another peak late Tuesday afternoon into Tuesday evening. * 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. Avoid climbing on rocks and jetties. Stay away from the ocean and remain out of the water to avoid hazardous conditions.
Beach Hazards Statement issued October 19 at 1:43PM PDT until October 21 at 8:00PM PDT by NWS Medford OR
Effective: Sun October 19, 2025, 1:43 PM
Expires: Mon October 20, 2025, 8:00 AM
* WHAT...For the High Surf Advisory, large breaking waves of 20 to 25 feet. For the Beach Hazards Statement, a high risk of sneaker waves. * WHERE...All beaches of Douglas, Coos and Curry Counties. * WHEN...For the High Surf Advisory, until 8 AM PDT Monday. For the Beach Hazards Statement, from Tuesday morning through Tuesday evening. * 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. Sneaker waves can run up significantly farther on beaches than normal, including over rocks and jetties. These waves can suddenly knock people off of their feet and quickly pull them into the cold ocean waters, resulting in serious injury or death. Waves may also lift driftwood logs, trapping anyone caught underneath. * ADDITIONAL DETAILS...The highest breaking waves are expected Sunday evening. Conditions may be just shy of high surf advisory levels as surf builds to another peak late Tuesday afternoon into Tuesday evening. * 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. Avoid climbing on rocks and jetties. Stay away from the ocean and remain out of the water to avoid hazardous conditions.
Weather Forecast
Average Temperature: 52.7°F
Average Humidity: 74%
Wind: 7.2 mph
UV Index: 0.7
Air Quality
Nitrogen Dioxide: 9.61 μg/m3
Sulphur Dioxide: 2.22 μg/m3
Ozone: 55.92 μg/m3
Astronomical
Sun Transit: 12:56 AM
Sunset: 6:20 PM
Daylight: 10 hrs 47 mins
Moon Transit: 12:23 AM
Moonset: 5:46 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.0%
Best Times for Fishing or Hunting
Major Periods
7:41 PM - 10:11 PM11:53 AM - 2:23 PM
Minor Periods
5:16 PM - 6:46 PM6:20 AM - 7:50 AM
Action Rating: 4 out of 5
Weather Forecast
Average Temperature: 54.9°F
Average Humidity: 65%
Wind: 4 mph
UV Index: 0.7
Air Quality
Nitrogen Dioxide: 10.83 μg/m3
Sulphur Dioxide: 2.59 μg/m3
Ozone: 45.48 μg/m3
Astronomical
Sun Transit: 12:56 AM
Sunset: 6:18 PM
Daylight: 10 hrs 44 mins
Moon Transit: 1:04 PM
Moonset: 6:06 PM
Moon Phase: New
Moon Illumination: 1.2%
Best Times for Fishing or Hunting
Major Periods
8:23 PM - 10:53 PM12:34 AM - 3:04 PM
Minor Periods
5:36 PM - 7:06 PM7:24 AM - 8:54 AM
Action Rating: 4 out of 5
Weather Forecast
Average Temperature: 59°F
Average Humidity: 54%
Wind: 7.8 mph
UV Index: 0.5
Air Quality
Nitrogen Dioxide: 19.93 μg/m3
Sulphur Dioxide: 2.18 μg/m3
Ozone: 37.84 μg/m3
Astronomical
Sun Transit: 12:56 AM
Sunset: 6:17 PM
Daylight: 10 hrs 41 mins
Moon Transit: 1:48 PM
Moonset: 6:30 PM
Moon Phase: New
Moon Illumination: 0.0%
Best Times for Fishing or Hunting
Major Periods
9:08 PM - 11:38 PM1:18 PM - 3:48 PM
Minor Periods
6:00 PM - 7:30 PM8:29 AM - 9:59 AM
Action Rating: 4 out of 5
Weather Forecast
Average Temperature: 55°F
Average Humidity: 66%
Wind: 4.7 mph
UV Index: 0.6
Air Quality
Nitrogen Dioxide: 9.59 μg/m3
Sulphur Dioxide: 1.62 μg/m3
Ozone: 52.8 μg/m3
Astronomical
Sun Transit: 12:56 AM
Sunset: 6:15 PM
Daylight: 10 hrs 38 mins
Moon Transit: 2:34 PM
Moonset: 6:58 PM
Moon Phase: New
Moon Illumination: 1.7%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM2:04 PM - 4:34 PM
Minor Periods
6:28 PM - 7:58 PM9:35 AM - 11:05 AM
Action Rating: 4 out of 5
Weather Forecast
Average Temperature: 49.3°F
Average Humidity: 77%
Wind: 12.8 mph
UV Index: 0
Air Quality
Nitrogen Dioxide: 4.48 μg/m3
Sulphur Dioxide: 1.37 μg/m3
Ozone: 71.92 μg/m3
Astronomical
Sun Transit: 12:56 AM
Sunset: 6:14 PM
Daylight: 10 hrs 36 mins
Moon Transit: 3:23 PM
Moonset: 7:33 PM
Moon Phase: Waxing Crescent
Moon Illumination: 5.8%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM2:53 PM - 5:23 PM
Minor Periods
7:03 PM - 8:33 PM10:39 AM - 12:09 AM
Action Rating: 2 out of 5