Weather for Cooperstown, North Dakota
Current Weather
Five Day Weather Forecast
Sun
H: 63°F
L: 42°F
Mon
H: 40°F
L: 35°F
Tue
H: 50°F
L: 34°F
Wed
H: 66°F
L: 35°F
Thu
H: 50°F
L: 29°F
Air Quality
Nitrogen Dioxide: 1.55 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 104 μg/m3
Astronomical
Sun Transit: 1:32 PM
Sunset: 8:18 PM
Daylight: 13 hrs 28 mins
Moon Transit: 9:41 AM
Moonset: 2:41 PM
Moon Phase: Waning Crescent
Moon Illumination: 12.6%
Best Times for Fishing or Hunting
Major Periods
8:28 PM - 10:58 PM9:11 AM - 11:41 AM
Minor Periods
2:11 PM - 3:41 PM4:22 AM - 5:52 AM
Action Rating: 3 out of 5
Dense Fog Advisory issued April 12 at 5:02AM CDT until April 12 at 10:00AM CDT by NWS Grand Forks ND
Effective: Sun April 12, 2026, 5:02 AM
Expires: Sun April 12, 2026, 10:00 AM
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Portions of west central Minnesota and northeast and southeast North Dakota. * WHEN...Until 10 AM CDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous.
If driving, slow down, use your headlights, and leave plenty of distance ahead of you.
Dense Fog Advisory issued April 12 at 5:02AM CDT until April 12 at 10:00AM CDT by NWS Grand Forks ND
Effective: Sun April 12, 2026, 5:02 AM
Expires: Sun April 12, 2026, 10:00 AM
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Portions of northwest and west central Minnesota and northeast and southeast North Dakota. * WHEN...Until 10 AM CDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous.
If driving, slow down, use your headlights, and leave plenty of distance ahead of you.
Dense Fog Advisory issued April 12 at 12:53AM CDT until April 12 at 10:00AM CDT by NWS Bismarck ND
Effective: Sun April 12, 2026, 12:53 AM
Expires: Sun April 12, 2026, 10:00 AM
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Portions of north central, south central, and southeast North Dakota. * WHEN...Until 10 AM CDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous.
If driving, slow down, use your headlights, and leave plenty of distance ahead of you.
Dense Fog Advisory issued April 12 at 6:33AM CDT until April 12 at 10:00AM CDT by NWS Bismarck ND
Effective: Sun April 12, 2026, 6:33 AM
Expires: Sun April 12, 2026, 10:00 AM
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Portions of north central, south central, and southeast North Dakota. * WHEN...Until 10 AM CDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous.
If driving, slow down, use your headlights, and leave plenty of distance ahead of you.
Flood Watch issued April 11 at 9:18PM CDT by NWS Grand Forks ND
Effective: Sat April 11, 2026, 9:18 PM
Expires: Sun April 12, 2026, 9:00 AM
...The Flood Watch continues for the following rivers in Minnesota... North Dakota... Red River of the North at Oslo affecting Grand Forks, Marshall, Polk and Walsh Counties. Red River of the North at East Grand Forks affecting Grand Forks and Polk Counties. Buffalo River near Dilworth affecting Clay County. * WHAT...Flooding is possible. * WHERE...Red River of the North at East Grand Forks. * WHEN...From Thursday morning until further notice. * IMPACTS...At 28.0 feet, MINOR FLOOD STAGE. * ADDITIONAL DETAILS... - At 8:45 PM CDT Saturday the stage was 20.2 feet. - Forecast...Flood stage may be reached late Thursday morning. - Flood stage is 28.0 feet. - http://www.weather.gov/safety/flood
If you are in the watch area, remain alert to possible flooding. Additional information is available at www.weather.gov.
Weather Forecast
Air Quality
Nitrogen Dioxide: 3.74 μg/m3
Sulphur Dioxide: 1 μg/m3
Ozone: 60.76 μg/m3
Astronomical
Sun Transit: 1:32 PM
Sunset: 8:18 PM
Daylight: 13 hrs 28 mins
Moon Transit: 9:41 AM
Moonset: 2:41 PM
Moon Phase: Waning Crescent
Moon Illumination: 12.6%
Best Times for Fishing or Hunting
Major Periods
8:28 PM - 10:58 PM9:11 AM - 11:41 AM
Minor Periods
2:11 PM - 3:41 PM4:22 AM - 5:52 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 2.48 μg/m3
Sulphur Dioxide: 0.97 μg/m3
Ozone: 72.92 μg/m3
Astronomical
Sun Transit: 1:32 PM
Sunset: 8:19 PM
Daylight: 13 hrs 32 mins
Moon Transit: 10:27 AM
Moonset: 3:56 PM
Moon Phase: Waning Crescent
Moon Illumination: 6.1%
Best Times for Fishing or Hunting
Major Periods
9:13 PM - 11:43 PM9:57 AM - 12:27 AM
Minor Periods
3:26 PM - 4:56 PM4:41 AM - 6:11 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 2.69 μg/m3
Sulphur Dioxide: 1.01 μg/m3
Ozone: 75 μg/m3
Astronomical
Sun Transit: 1:32 PM
Sunset: 8:21 PM
Daylight: 13 hrs 35 mins
Moon Transit: 11:12 AM
Moonset: 5:12 PM
Moon Phase: Waning Crescent
Moon Illumination: 1.9%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM10:42 AM - 1:12 PM
Minor Periods
4:42 PM - 6:12 PM4:58 AM - 6:28 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 3.51 μg/m3
Sulphur Dioxide: 1.11 μg/m3
Ozone: 75.8 μg/m3
Astronomical
Sun Transit: 1:32 PM
Sunset: 8:22 PM
Daylight: 13 hrs 38 mins
Moon Transit: 10:33 AM
Moonset: 6:31 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.1%
Best Times for Fishing or Hunting
Major Periods
10:03 AM - 12:33 AM10:03 AM - 12:33 AM
Minor Periods
6:01 PM - 7:31 PM5:15 AM - 6:45 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 4.36 μg/m3
Sulphur Dioxide: 1.07 μg/m3
Ozone: 61.85 μg/m3
Astronomical
Sun Transit: 1:31 PM
Sunset: 8:23 PM
Daylight: 13 hrs 42 mins
Moon Transit: 12:48 AM
Moonset: 7:52 PM
Moon Phase: New
Moon Illumination: 0.8%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM12:18 AM - 2:48 PM
Minor Periods
7:22 PM - 8:52 PM5:32 AM - 7:02 AM
Action Rating: 5 out of 5