The official National Weather Service forecast for Savannah — 39.9417°N, 94.8303°W, population 5,253, 6 miles from I-29. Forecasts here are written by NWS EAX, this county’s forecast office.
| Andrew County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 36 | 41 | 54 | 65 | 74 | 84 | 87 | 86 | 79 | 67 | 53 | 40 | 64 |
| Avg low °F | 17 | 21 | 32 | 42 | 53 | 63 | 67 | 64 | 56 | 44 | 32 | 22 | 43 |
| Precip in | 1.0 | 1.3 | 2.2 | 3.4 | 5.0 | 5.3 | 4.3 | 4.3 | 3.2 | 3.2 | 1.9 | 1.4 | 36.5 |
1996–2025 normals for Andrew County — the climate division Savannah sits in. All-time county record high 106.8°F (1980-07-31); record low -23.0°F (1989-12-23). Source: NOAA / National Weather Service.