The official National Weather Service forecast for Smith Center — 39.7792°N, 98.7851°W, 64.7 miles from I-70.
| Smith County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 39 | 43 | 56 | 66 | 75 | 87 | 91 | 89 | 82 | 68 | 55 | 42 | 66 |
| Avg low °F | 16 | 19 | 29 | 38 | 49 | 60 | 65 | 63 | 54 | 41 | 29 | 19 | 40 |
| Precip in | 0.6 | 0.7 | 1.4 | 2.1 | 4.0 | 3.4 | 3.8 | 3.3 | 2.2 | 1.8 | 1.1 | 0.8 | 25.2 |
1996–2025 normals for Smith County — the climate division Smith Center sits in. All-time county record high 112.1°F (2012-06-28); record low -29.3°F (1989-12-23). Source: NOAA / National Weather Service.