The official National Weather Service forecast for Potter — 41.2175°N, 103.3158°W, 3.1 miles from I-80.
| Cheyenne County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 41 | 42 | 53 | 61 | 70 | 82 | 89 | 87 | 79 | 64 | 52 | 42 | 64 |
| Avg low °F | 16 | 17 | 25 | 32 | 43 | 53 | 59 | 57 | 48 | 34 | 24 | 17 | 35 |
| Precip in | 0.3 | 0.5 | 1.0 | 1.9 | 3.1 | 2.6 | 2.6 | 2.1 | 1.5 | 1.1 | 0.5 | 0.4 | 17.6 |
1996–2025 normals for Cheyenne County — the climate division Potter sits in. All-time county record high 107.0°F (2012-06-27); record low -34.8°F (1989-12-22). Source: NOAA / National Weather Service.