The official National Weather Service forecast for Madison — 41.8283°N, 97.455°W, 67.2 miles from I-29.
| Madison County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 32 | 37 | 50 | 61 | 72 | 82 | 86 | 83 | 77 | 64 | 49 | 36 | 61 |
| Avg low °F | 13 | 15 | 26 | 36 | 48 | 59 | 64 | 61 | 52 | 39 | 26 | 16 | 38 |
| Precip in | 0.6 | 0.7 | 1.6 | 2.7 | 4.1 | 4.3 | 2.8 | 3.4 | 2.2 | 2.2 | 1.1 | 0.9 | 26.6 |
1996–2025 normals for Madison County — the climate division Madison sits in. All-time county record high 105.7°F (1954-07-13); record low -29.5°F (2021-02-16). Source: NOAA / National Weather Service.