Slope County weather, town by town
2 places in Slope County, North Dakota, each with its own live forecast and radar, and where a station sits close enough, measured weather records.
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Measured at the NOAA stations serving these towns, daily records 1915 to 2026. Station extremes, not official state records.
Slope County Weather Facts
Slope County has 2 places on myweatherrock (2 cities), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 112°F at Bowman on July 6, 1936. The coldest night is -43°F at Bowman on January 12, 1916. The wettest day brought 5.4 inches of rain at Bowman on July 13, 1966. The biggest single-day snow measured 18.5 inches at Bowman on April 19, 2006. Those are station measurements from NOAA's daily records, 1915 to 2026, not official state records. By area the largest place is Marmarth, about 3 square miles.
About Slope County weather
The map on the Now tab shows every Slope County town's current temperature from our own server, one dot per town. Tap any dot, or type a town above, for that town's full forecast.
What the weather is usually like
Across the 2 Slope County towns with station normals, the warmest month is July, when the day usually reaches 86°F, and the coldest is January, when the night usually falls to 8°F. June is the wettest, with rain on about 12 days.
Means of the 1991 to 2020 station normals serving these towns, as published by NOAA; each town's page carries its own.
Where these numbers come from
- Current conditions and forecast: NOAA forecast grids decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
- Records: computed by myweatherrock from NOAA GHCN-Daily station records at the stations serving these towns. Measurements, not estimates.
- Warnings and alerts: the National Weather Service, passed through unchanged.
Slope County weather records
Measured at the NOAA stations serving these towns, daily records 1915 to 2026. Station extremes, not official state records.
Common questions about Slope County weather
- What is the hottest temperature recorded at a Slope County station?
- 112°F at Bowman on July 6, 1936, in the NOAA daily station records myweatherrock holds (1915 to 2026).
- What is the coldest temperature recorded at a Slope County station?
- -43°F at Bowman on January 12, 1916.
- What is the most rain a Slope County station has measured in one day?
- 5.4 inches at Bowman on July 13, 1966.
- What is the biggest one-day snowfall at a Slope County station?
- 18.5 inches at Bowman on April 19, 2006.
- How many Slope County towns have a weather page here?
- 2: 2 cities. Each page carries current conditions, the hourly timeline, the ten day outlook, radar, and where a station sits close enough, measured records.
- Where does the Slope County forecast come from?
- NOAA forecast grids (the National Weather Service digital forecast, the National Blend of Models, HRRR and GFS) decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
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