Water Temperature of the Coast Fork Willamette River in Cottage Grove, OR
Current Water Temperature
50.7°F
Measurement Time: Saturday, April 18, 2026, 2:50 PM PDT
Temperature Locations
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Local Points of Interest
Cottage Grove Lake; Cottage Grove DamCoast 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
52°F

Clear
52.6°F
57.3°F
71%
S 2.2 mph
4.2 mph
57.3°F
45.6°F
0 in
25%
9 mi
1012 mbar
0
Five Day Weather Forecast

Sat
H: 73°F
L: 41°F

Sun
H: 69°F
L: 45°F

Mon
H: 70°F
L: 45°F

Tue
H: 50°F
L: 46°F

Wed
H: 49°F
L: 43°F
Air Quality
AQI:
1 - Good
PM2.5:
7.85 μg/m3
PM10:
11.05 μg/m3
Carbon Monoxide: 203.85 μg/m3
Nitrogen Dioxide: 14.25 μg/m3
Sulphur Dioxide: 1.55 μg/m3
Ozone: 36 μg/m3
Nitrogen Dioxide: 14.25 μg/m3
Sulphur Dioxide: 1.55 μg/m3
Ozone: 36 μg/m3
Astronomical
Sunrise: 6:24 AM
Sun Transit: 1:11 PM
Sunset: 8:00 PM
Daylight: 13 hrs 35 mins
Sun Transit: 1:11 PM
Sunset: 8:00 PM
Daylight: 13 hrs 35 mins
Moonrise: 6:42 AM
Moon Transit: 2:21 PM
Moonset: 10:17 PM
Moon Phase: New
Moon Illumination: 1.2%
Moon Transit: 2:21 PM
Moonset: 10:17 PM
Moon Phase: New
Moon Illumination: 1.2%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM1:51 PM - 4:21 PM
Minor Periods
9:47 PM - 11:17 PM6:12 AM - 7:42 AM
Action Rating: 4 out of 5
Saturday, April 18, 2026
Weather Forecast
Sunny
73.2°F
41°F
56.7°F
53%
0 in
0%
0%
4.5 mph
7.1
Air Quality
AQI:
1 - Good
PM2.5:
8.14 μg/m3
PM10:
10.69 μg/m3
Carbon Monoxide: 201.61 μg/m3
Nitrogen Dioxide: 10.69 μg/m3
Sulphur Dioxide: 1.74 μg/m3
Ozone: 63.6 μg/m3
Nitrogen Dioxide: 10.69 μg/m3
Sulphur Dioxide: 1.74 μg/m3
Ozone: 63.6 μg/m3
Astronomical
Sunrise: 6:24 AM
Sun Transit: 1:11 PM
Sunset: 8:00 PM
Daylight: 13 hrs 35 mins
Sun Transit: 1:11 PM
Sunset: 8:00 PM
Daylight: 13 hrs 35 mins
Moonrise: 6:42 AM
Moon Transit: 2:21 PM
Moonset: 10:17 PM
Moon Phase: New
Moon Illumination: 1.2%
Moon Transit: 2:21 PM
Moonset: 10:17 PM
Moon Phase: New
Moon Illumination: 1.2%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM1:51 PM - 4:21 PM
Minor Periods
9:47 PM - 11:17 PM6:12 AM - 7:42 AM
Action Rating: 4 out of 5
Sunday, April 19, 2026
Weather Forecast
Partly Cloudy
68.9°F
45.3°F
55.7°F
70%
0 in
0%
0%
8.5 mph
5.1
Air Quality
AQI:
1 - Good
PM2.5:
6.55 μg/m3
PM10:
9.99 μg/m3
Carbon Monoxide: 194.37 μg/m3
Nitrogen Dioxide: 9.42 μg/m3
Sulphur Dioxide: 1.6 μg/m3
Ozone: 65.28 μg/m3
Nitrogen Dioxide: 9.42 μg/m3
Sulphur Dioxide: 1.6 μg/m3
Ozone: 65.28 μg/m3
Astronomical
Sunrise: 6:23 AM
Sun Transit: 1:11 PM
Sunset: 8:01 PM
Daylight: 13 hrs 38 mins
Sun Transit: 1:11 PM
Sunset: 8:01 PM
Daylight: 13 hrs 38 mins
Moonrise: 7:18 AM
Moon Transit: 3:22 PM
Moonset: 11:38 PM
Moon Phase: Waxing Crescent
Moon Illumination: 4.9%
Moon Transit: 3:22 PM
Moonset: 11:38 PM
Moon Phase: Waxing Crescent
Moon Illumination: 4.9%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM2:52 PM - 5:22 PM
Minor Periods
12:00 AM - 12:00 AM6:48 AM - 8:18 AM
Action Rating: 3 out of 5
Monday, April 20, 2026
Weather Forecast
Patchy rain nearby
69.6°F
44.6°F
52.7°F
84%
0.19 in
89%
0%
12.5 mph
6.6
Air Quality
AQI:
1 - Good
PM2.5:
5.22 μg/m3
PM10:
9.78 μg/m3
Carbon Monoxide: 177.37 μg/m3
Nitrogen Dioxide: 8.37 μg/m3
Sulphur Dioxide: 1.57 μg/m3
Ozone: 63 μg/m3
Nitrogen Dioxide: 8.37 μg/m3
Sulphur Dioxide: 1.57 μg/m3
Ozone: 63 μg/m3
Astronomical
Sunrise: 6:21 AM
Sun Transit: 1:11 PM
Sunset: 8:02 PM
Daylight: 13 hrs 41 mins
Sun Transit: 1:11 PM
Sunset: 8:02 PM
Daylight: 13 hrs 41 mins
Moonrise: 8:07 AM
Moon Transit: 4:27 PM
Moonset: 12:38 AM
Moon Phase: Waxing Crescent
Moon Illumination: 10.8%
Moon Transit: 4:27 PM
Moonset: 12:38 AM
Moon Phase: Waxing Crescent
Moon Illumination: 10.8%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM3:57 PM - 6:27 PM
Minor Periods
7:37 AM - 9:07 AM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Tuesday, April 21, 2026
Weather Forecast
Patchy rain nearby
50.1°F
46.1°F
48.4°F
96%
0.06 in
89%
0%
3.8 mph
0.7
Air Quality
AQI:
1 - Good
PM2.5:
3.31 μg/m3
PM10:
5.29 μg/m3
Carbon Monoxide: 156.95 μg/m3
Nitrogen Dioxide: 4.41 μg/m3
Sulphur Dioxide: 1.22 μg/m3
Ozone: 80.36 μg/m3
Nitrogen Dioxide: 4.41 μg/m3
Sulphur Dioxide: 1.22 μg/m3
Ozone: 80.36 μg/m3
Astronomical
Sunrise: 6:19 AM
Sun Transit: 1:10 PM
Sunset: 8:03 PM
Daylight: 13 hrs 44 mins
Sun Transit: 1:10 PM
Sunset: 8:03 PM
Daylight: 13 hrs 44 mins
Moonrise: 9:08 AM
Moon Transit: 5:32 PM
Moonset: 12:52 AM
Moon Phase: Waxing Crescent
Moon Illumination: 18.8%
Moon Transit: 5:32 PM
Moonset: 12:52 AM
Moon Phase: Waxing Crescent
Moon Illumination: 18.8%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM5:02 PM - 7:32 PM
Minor Periods
8:38 AM - 10:08 AM12:22 AM - 1:52 AM
Action Rating: 2 out of 5
Wednesday, April 22, 2026
Weather Forecast
Moderate rain
49°F
43°F
46.3°F
97%
0.45 in
89%
0%
9.8 mph
2
Air Quality
AQI:
1 - Good
PM2.5:
4.14 μg/m3
PM10:
5.83 μg/m3
Carbon Monoxide: 174.79 μg/m3
Nitrogen Dioxide: 6.62 μg/m3
Sulphur Dioxide: 1.3 μg/m3
Ozone: 65.38 μg/m3
Nitrogen Dioxide: 6.62 μg/m3
Sulphur Dioxide: 1.3 μg/m3
Ozone: 65.38 μg/m3
Astronomical
Sunrise: 6:18 AM
Sun Transit: 1:10 PM
Sunset: 8:05 PM
Daylight: 13 hrs 47 mins
Sun Transit: 1:10 PM
Sunset: 8:05 PM
Daylight: 13 hrs 47 mins
Moonrise: 10:20 AM
Moon Transit: 6:34 PM
Moonset: 1:51 AM
Moon Phase: Waxing Crescent
Moon Illumination: 28.4%
Moon Transit: 6:34 PM
Moonset: 1:51 AM
Moon Phase: Waxing Crescent
Moon Illumination: 28.4%
Best Times for Fishing or Hunting
Major Periods
12:57 AM - 3:27 AM6:04 PM - 8:34 PM
Minor Periods
9:50 AM - 11:20 AM1:21 AM - 2:51 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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