The official National Weather Service forecast for Antelope — 43.3031°N, 100.6293°W, 40.2 miles from I-90.
| Todd County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 35 | 37 | 48 | 58 | 69 | 80 | 88 | 86 | 78 | 62 | 49 | 37 | 61 |
| Avg low °F | 13 | 15 | 24 | 32 | 44 | 54 | 61 | 58 | 49 | 36 | 24 | 15 | 35 |
| Precip in | 0.5 | 0.6 | 1.2 | 2.6 | 3.7 | 3.7 | 2.6 | 2.2 | 2.0 | 1.6 | 0.6 | 0.7 | 22.0 |
1996–2025 normals for Todd County — the climate division Antelope sits in. All-time county record high 110.1°F (2006-07-17); record low -29.8°F (1983-12-23). Source: NOAA / National Weather Service.