The official National Weather Service forecast for Deerfield — 37.9797°N, 101.1332°W, 80.3 miles from I-70.
| Kearny County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 46 | 49 | 60 | 69 | 78 | 89 | 93 | 91 | 85 | 71 | 58 | 48 | 70 |
| Avg low °F | 18 | 21 | 29 | 37 | 49 | 59 | 65 | 63 | 54 | 41 | 28 | 20 | 40 |
| Precip in | 0.4 | 0.4 | 1.1 | 1.4 | 2.5 | 2.7 | 3.0 | 2.7 | 1.3 | 1.5 | 0.5 | 0.5 | 18.0 |
1996–2025 normals for Kearny County — the climate division Deerfield sits in. All-time county record high 110.9°F (2012-06-28); record low -19.6°F (1984-01-19). Source: NOAA / National Weather Service.