The official National Weather Service forecast for Curtis — 40.63°N, 100.5157°W, 26.4 miles from I-80.
| Frontier County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 40 | 43 | 55 | 64 | 73 | 85 | 90 | 87 | 81 | 67 | 54 | 42 | 65 |
| Avg low °F | 15 | 17 | 26 | 35 | 46 | 57 | 63 | 61 | 51 | 38 | 25 | 17 | 38 |
| Precip in | 0.3 | 0.6 | 1.1 | 2.1 | 3.6 | 3.4 | 3.2 | 2.8 | 1.8 | 1.5 | 0.7 | 0.5 | 21.6 |
1996–2025 normals for Frontier County — the climate division Curtis sits in. All-time county record high 110.3°F (1954-07-12); record low -30.4°F (1989-12-23). Source: NOAA / National Weather Service.