The official National Weather Service forecast for Meridianville — 34.8515°N, 86.5722°W, 6.3 miles from I-565. Forecasts here are written by NWS HUN, this county’s forecast office.
| Madison County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 50 | 55 | 64 | 73 | 80 | 87 | 89 | 89 | 84 | 74 | 63 | 54 | 72 |
| Avg low °F | 31 | 34 | 41 | 48 | 58 | 65 | 69 | 67 | 61 | 50 | 40 | 34 | 50 |
| Precip in | 5.6 | 5.4 | 5.7 | 5.3 | 4.7 | 4.4 | 5.1 | 4.0 | 3.8 | 3.4 | 4.3 | 5.8 | 57.5 |
1996–2025 normals for Madison County — the climate division Meridianville sits in. All-time county record high 107.0°F (1952-07-29); record low -13.8°F (1966-01-30). Source: NOAA / National Weather Service.