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

Current Water Temperature

32.0°F

Measurement Time: Wednesday, February 11, 2026, 3:31 AM PST

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

37°F
Mist
Mist
34.8°F
46.2°F
100%
N 3.1 mph
3.6 mph
44.5°F
38.2°F
0 in
75%
2 mi
1018 mbar
1.7

Five Day Weather Forecast

Sunny
Wed
H: 60°F
L: 35°F
Mist
Thu
H: 46°F
L: 35°F
Mist
Fri
H: 44°F
L: 38°F
Overcast
Sat
H: 53°F
L: 37°F
Partly Cloudy
Sun
H: 55°F
L: 35°F

Air Quality

AQI: 1 - Good
PM2.5: 11.75 μg/m3
PM10: 12.65 μg/m3
Carbon Monoxide: 251.85 μg/m3
Nitrogen Dioxide: 27.95 μg/m3
Sulphur Dioxide: 2.65 μg/m3
Ozone: 19 μg/m3

Astronomical

Sunrise: 7:16 AM
Sun Transit: 12:26 AM
Sunset: 5:37 PM
Daylight: 10 hrs 21 mins
Moonrise: 3:35 AM
Moon Transit: 7:42 AM
Moonset: 11:47 AM
Moon Phase: Last Quarter
Moon Illumination: 20.5%

Best Times for Fishing or Hunting

Major Periods

7:12 AM - 9:42 AM
3:04 PM - 5:34 PM

Minor Periods

11:17 AM - 12:47 AM
3:05 AM - 4:35 AM

Action Rating: 4 out of 5

Beach Hazards Statement issued February 9 at 12:33PM PST until February 15 at 10:00PM PST by NWS Portland OR

Effective: Mon February 9, 2026, 12:33 PM
Expires: Wed February 11, 2026, 4:00 PM

* WHAT...Sneaker waves possible. * WHERE...North and Central Coast of Oregon, and South Washington Coast. * WHEN...From late Thursday night through Sunday evening. * 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...Caution should be used when in or near the water, especially those who will be razor clamming. Keep children and pets away from the surf zone. Keep off of jetties, rocks and logs near the surf zone. If you see someone swept into the sea do not swim in after them. Call 911 and keep an eye on them until help arrives.

Remain out of the water to avoid hazardous swimming conditions.


Beach Hazards Statement issued February 10 at 9:58PM PST until February 13 at 12:00PM PST by NWS Medford OR

Effective: Tue February 10, 2026, 9:58 PM
Expires: Wed February 11, 2026, 3:00 PM

* WHAT...Moderate risk of sneaker waves expected. * WHERE...Beaches of Curry, Coos, and Douglas counties. * WHEN...From 9 pm PST Thursday through noon PST Friday. * IMPACTS...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 sweep them into the ocean. The waves can also move logs or other objects which could crush or trap anyone caught underneath. * ADDITIONAL DETAILS...High tide on Friday morning may cause additional risks. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

Avoid climbing on rocks and jetties. Stay away from the ocean and remain out of the water to avoid hazardous conditions.
Wednesday, February 11, 2026

Weather Forecast

Sunny
59.5°F
34.9°F
44.2°F
80%
0 in
0%
0%
4.5 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 6.9 μg/m3
PM10: 7.9 μg/m3
Carbon Monoxide: 224.73 μg/m3
Nitrogen Dioxide: 13.61 μg/m3
Sulphur Dioxide: 2.13 μg/m3
Ozone: 32.52 μg/m3

Astronomical

Sunrise: 7:16 AM
Sun Transit: 12:26 AM
Sunset: 5:37 PM
Daylight: 10 hrs 21 mins
Moonrise: 3:35 AM
Moon Transit: 7:42 AM
Moonset: 11:47 AM
Moon Phase: Last Quarter
Moon Illumination: 20.5%

Best Times for Fishing or Hunting

Major Periods

7:12 AM - 9:42 AM
3:04 PM - 5:34 PM

Minor Periods

11:17 AM - 12:47 AM
3:05 AM - 4:35 AM

Action Rating: 4 out of 5

Thursday, February 12, 2026

Weather Forecast

Mist
45.5°F
34.9°F
40.8°F
96%
0 in
0%
0%
4.5 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 10.02 μg/m3
PM10: 11.01 μg/m3
Carbon Monoxide: 231.13 μg/m3
Nitrogen Dioxide: 20.83 μg/m3
Sulphur Dioxide: 2.45 μg/m3
Ozone: 22.64 μg/m3

Astronomical

Sunrise: 7:15 AM
Sun Transit: 12:26 AM
Sunset: 5:38 PM
Daylight: 10 hrs 24 mins
Moonrise: 4:31 AM
Moon Transit: 8:34 AM
Moonset: 12:38 AM
Moon Phase: Waning Crescent
Moon Illumination: 12.2%

Best Times for Fishing or Hunting

Major Periods

8:04 AM - 10:34 AM
3:56 PM - 6:26 PM

Minor Periods

12:08 AM - 1:38 PM
4:01 AM - 5:31 AM

Action Rating: 2 out of 5

Friday, February 13, 2026

Weather Forecast

Mist
43.5°F
38.1°F
40.3°F
90%
0 in
0%
0%
4.3 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 9.69 μg/m3
PM10: 12.01 μg/m3
Carbon Monoxide: 219.85 μg/m3
Nitrogen Dioxide: 13.59 μg/m3
Sulphur Dioxide: 1.79 μg/m3
Ozone: 35.16 μg/m3

Astronomical

Sunrise: 7:13 AM
Sun Transit: 12:26 AM
Sunset: 5:40 PM
Daylight: 10 hrs 27 mins
Moonrise: 5:19 AM
Moon Transit: 9:26 AM
Moonset: 1:37 PM
Moon Phase: Waning Crescent
Moon Illumination: 5.8%

Best Times for Fishing or Hunting

Major Periods

8:56 AM - 11:26 AM
4:48 PM - 7:18 PM

Minor Periods

1:07 PM - 2:37 PM
4:49 AM - 6:19 AM

Action Rating: 2 out of 5

Saturday, February 14, 2026

Weather Forecast

Overcast
52.6°F
37°F
42.4°F
84%
0 in
0%
0%
2.9 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 6.59 μg/m3
PM10: 8.11 μg/m3
Carbon Monoxide: 224 μg/m3
Nitrogen Dioxide: 7.37 μg/m3
Sulphur Dioxide: 1.61 μg/m3
Ozone: 46.28 μg/m3

Astronomical

Sunrise: 7:12 AM
Sun Transit: 12:26 AM
Sunset: 5:41 PM
Daylight: 10 hrs 29 mins
Moonrise: 5:59 AM
Moon Transit: 10:18 AM
Moonset: 2:44 PM
Moon Phase: Waning Crescent
Moon Illumination: 1.7%

Best Times for Fishing or Hunting

Major Periods

5:40 PM - 8:10 PM
9:48 AM - 12:18 AM

Minor Periods

2:14 PM - 3:44 PM
5:29 AM - 6:59 AM

Action Rating: 4 out of 5

Sunday, February 15, 2026

Weather Forecast

Partly Cloudy
54.5°F
35.3°F
43°F
87%
0 in
0%
0%
4.3 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 7.01 μg/m3
PM10: 7.31 μg/m3
Carbon Monoxide: 234.8 μg/m3
Nitrogen Dioxide: 13.53 μg/m3
Sulphur Dioxide: 2 μg/m3
Ozone: 32.15 μg/m3

Astronomical

Sunrise: 7:10 AM
Sun Transit: 12:26 AM
Sunset: 5:42 PM
Daylight: 10 hrs 32 mins
Moonrise: 6:32 AM
Moon Transit: 11:08 AM
Moonset: 3:54 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

6:30 PM - 9:00 PM
10:38 AM - 1:08 PM

Minor Periods

3:24 PM - 4:54 PM
6:02 AM - 7:32 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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