The official National Weather Service forecast for Jackson — 43.3239°N, 88.1668°W, population 7,962, 3.1 miles from I-41. Forecasts here are written by NWS MKX, this county’s forecast office.
| Washington County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 27 | 31 | 43 | 55 | 67 | 77 | 82 | 79 | 73 | 60 | 45 | 32 | 56 |
| Avg low °F | 12 | 14 | 24 | 34 | 45 | 55 | 60 | 58 | 51 | 39 | 28 | 18 | 36 |
| Precip in | 1.5 | 1.4 | 2.1 | 3.4 | 4.0 | 4.8 | 3.6 | 4.0 | 3.1 | 2.7 | 1.9 | 1.8 | 34.3 |
1996–2025 normals for Washington County — the climate division Jackson sits in. All-time county record high 102.3°F (2012-07-06); record low -30.1°F (1982-01-11). Source: NOAA / National Weather Service.