The official National Weather Service forecast for Belvidere — 43.8319°N, 101.2715°W, 2.3 miles from I-90.
| Jackson County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 35 | 38 | 49 | 59 | 69 | 81 | 90 | 88 | 79 | 63 | 49 | 37 | 61 |
| Avg low °F | 13 | 14 | 24 | 33 | 44 | 55 | 61 | 59 | 50 | 36 | 24 | 15 | 36 |
| Precip in | 0.4 | 0.6 | 1.1 | 2.2 | 3.3 | 3.0 | 2.3 | 1.9 | 1.5 | 1.6 | 0.5 | 0.5 | 18.9 |
1996–2025 normals for Jackson County — the climate division Belvidere sits in. All-time county record high 113.8°F (2006-07-16); record low -30.5°F (1989-12-22). Source: NOAA / National Weather Service.