The official National Weather Service forecast for La Crosse — 38.5314°N, 99.3087°W, 24.1 miles from I-70.
| Rush County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 43 | 47 | 58 | 68 | 77 | 88 | 93 | 91 | 84 | 70 | 57 | 46 | 68 |
| Avg low °F | 19 | 21 | 31 | 40 | 50 | 61 | 66 | 64 | 56 | 43 | 30 | 21 | 42 |
| Precip in | 0.6 | 0.7 | 1.4 | 1.9 | 3.8 | 3.5 | 3.4 | 3.5 | 2.0 | 1.9 | 0.9 | 0.8 | 24.4 |
1996–2025 normals for Rush County — the climate division La Crosse sits in. All-time county record high 112.6°F (2012-06-28); record low -22.0°F (1989-12-23). Source: NOAA / National Weather Service.