The official National Weather Service forecast for Creston — 41.0586°N, 94.3614°W, population 7,507, 29.5 miles from I-35.
| Union County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 32 | 36 | 50 | 62 | 72 | 82 | 85 | 83 | 77 | 65 | 50 | 37 | 61 |
| Avg low °F | 13 | 16 | 28 | 38 | 50 | 60 | 64 | 61 | 53 | 41 | 29 | 18 | 39 |
| Precip in | 0.9 | 1.2 | 2.1 | 3.5 | 5.3 | 5.1 | 3.8 | 4.3 | 3.2 | 3.0 | 1.8 | 1.4 | 35.6 |
1996–2025 normals for Union County — the climate division Creston sits in. All-time county record high 103.8°F (1983-08-17); record low -28.1°F (1996-02-03). Source: NOAA / National Weather Service.