The official National Weather Service forecast for Mineral Point — 42.86°N, 90.1799°W, 47.4 miles from I-39. Forecasts here are written by NWS MKX, this county’s forecast office.
| Iowa County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 27 | 32 | 45 | 58 | 70 | 79 | 82 | 80 | 74 | 61 | 46 | 33 | 57 |
| Avg low °F | 11 | 14 | 25 | 35 | 47 | 57 | 61 | 59 | 51 | 39 | 28 | 17 | 37 |
| Precip in | 1.2 | 1.3 | 2.2 | 3.6 | 4.3 | 5.4 | 4.3 | 4.2 | 3.3 | 2.8 | 2.1 | 1.7 | 36.4 |
1996–2025 normals for Iowa County — the climate division Mineral Point sits in. All-time county record high 101.7°F (2012-07-07); record low -42.2°F (1951-01-30). Source: NOAA / National Weather Service.