The official National Weather Service forecast for Waukon — 43.2694°N, 91.4757°W, 67.4 miles from I-380.
| Allamakee County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 26 | 30 | 44 | 57 | 69 | 79 | 82 | 80 | 74 | 60 | 45 | 31 | 56 |
| Avg low °F | 10 | 13 | 25 | 36 | 47 | 58 | 62 | 59 | 52 | 40 | 28 | 16 | 37 |
| Precip in | 1.2 | 1.3 | 2.0 | 3.7 | 4.9 | 5.9 | 4.5 | 4.3 | 3.6 | 2.8 | 1.8 | 1.6 | 37.6 |
1996–2025 normals for Allamakee County — the climate division Waukon sits in. All-time county record high 101.4°F (1995-07-14); record low -36.7°F (1951-01-30). Source: NOAA / National Weather Service.