Summer temperatures · North Dakota
How hot does Bismarck get in summer?
In a typical summer, June to August, Bismarck averages highs around 82°F and lows around 56°F.
About 21 days a year reach 90°F or hotter, and about 2 reach 100°F. About 75 days a year get to 80°F or warmer. That makes it the 21st coolest summer of the 129 US cities we track.
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The hottest high in the forecast for the next 48 hours is about 51°F.
Bismarck reaches 90°F on about 21 days a year, then averages winter highs around 26°F, so the closets here have a lot of ground to cover.
Live 48-hour forecast from OpenWeatherMap, refreshed about every half hour. Alerts from the National Weather Service.
Summer at a glance
| Average summer high | 82°F |
|---|---|
| Average summer low | 56°F |
| Days a year at 80°F or warmer | 75 |
| Days a year at 90°F or hotter | 21 |
| Days a year at 100°F or hotter | 2 |
| Average winter high, for comparison | 26°F |
Summer here is June to August. Counts are averages a year.
Cities with about the same summer
- Concord, New Hampshire: highs around 81°F, lows around 57°F
- Fargo, North Dakota: highs around 80°F, lows around 57°F
- Los Angeles, California: highs around 75°F, lows around 63°F
More about the weather here
Source: NOAA U.S. Climate Normals, 1991 to 2020, station USW00024011.