The official National Weather Service forecast for Richardton — 46.8839°N, 102.3157°W, 1.2 miles from I-94.
| Stark County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 26 | 29 | 41 | 54 | 66 | 76 | 84 | 83 | 74 | 57 | 41 | 29 | 55 |
| Avg low °F | 6 | 7 | 18 | 29 | 40 | 50 | 56 | 54 | 45 | 32 | 19 | 9 | 30 |
| Precip in | 0.3 | 0.4 | 0.6 | 1.3 | 2.9 | 2.9 | 2.2 | 1.8 | 1.6 | 1.3 | 0.5 | 0.4 | 16.2 |
1996–2025 normals for Stark County — the climate division Richardton sits in. All-time county record high 107.5°F (2026-07-13); record low -39.1°F (1962-02-28). Source: NOAA / National Weather Service.