Temperature
Cold by day, freezing at night.
Belle Fourche is usually most comfortable in May and October. Typical daytime highs range from 36–88°F across the year. Most months see little rain.

Cold by day, freezing at night.
Some precipitation is expected this month.
Good sunshine this month.
Humidity is rarely noticeable in the cool air.
In November, afternoons feel about 31° and nights feel near 20°.
Partly cloudy skies this month.
Breezy November days can feel brisker in open spots.
November late afternoons are around 39°F, easing to about 35°F in early evening.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 36 | 17 | 0.5 | 4 | 7.3 | 64 |
| Feb | 39 | 19 | 0.8 | 5 | 8.4 | 64 |
| Mar | 49 | 26 | 1.4 | 6 | 9.7 | 63 |
| Apr | 59 | 35 | 2.4 | 10 | 10.4 | 60 |
| May | 68 | 45 | 2.9 | 10 | 11.3 | 61 |
| Jun | 79 | 55 | 2.3 | 9 | 13.0 | 59 |
| Jul | 88 | 61 | 1.6 | 7 | 13.5 | 54 |
| Aug | 87 | 59 | 1.2 | 6 | 12.8 | 54 |
| Sep | 78 | 50 | 1.2 | 5 | 10.6 | 54 |
| Oct | 61 | 38 | 1.8 | 6 | 8.6 | 60 |
| Nov | 47 | 27 | 0.7 | 4 | 7.5 | 62 |
| Dec | 37 | 19 | 0.6 | 4 | 6.9 | 64 |
Similar climates
Want a side-by-side climate view? Compare Belle Fourche with New York City.
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Aug 27, 2026
Data & methodology