The official National Weather Service forecast for Jamestown — 46.9105°N, 98.7084°W, population 15,207, 12.8 miles from I-94.
| Stutsman County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 19 | 23 | 36 | 52 | 66 | 76 | 82 | 79 | 71 | 55 | 38 | 24 | 52 |
| Avg low °F | 2 | 4 | 16 | 29 | 42 | 53 | 58 | 55 | 47 | 34 | 20 | 7 | 31 |
| Precip in | 0.4 | 0.5 | 0.7 | 1.4 | 3.1 | 3.5 | 2.9 | 2.5 | 2.1 | 1.6 | 0.6 | 0.7 | 20.0 |
1996–2025 normals for Stutsman County — the climate division Jamestown sits in. All-time county record high 105.8°F (1973-07-12); record low -37.8°F (1951-01-29). Source: NOAA / National Weather Service.