The official National Weather Service forecast for Highmore — 44.5214°N, 99.4415°W, 46 miles from I-90.
| Hyde County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 26 | 30 | 43 | 57 | 68 | 79 | 86 | 84 | 76 | 60 | 44 | 30 | 57 |
| Avg low °F | 7 | 9 | 20 | 31 | 43 | 54 | 60 | 57 | 48 | 35 | 22 | 11 | 33 |
| Precip in | 0.4 | 0.6 | 0.9 | 2.1 | 3.3 | 3.5 | 2.6 | 2.5 | 2.1 | 1.7 | 0.5 | 0.6 | 20.8 |
1996–2025 normals for Hyde County — the climate division Highmore sits in. All-time county record high 111.3°F (2006-07-16); record low -37.1°F (1966-01-29). Source: NOAA / National Weather Service.