The official National Weather Service forecast for Wauseon — 41.5492°N, 84.1416°W, population 7,623, 10.7 miles from I-90.
| Fulton County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 33 | 36 | 47 | 60 | 71 | 81 | 84 | 82 | 77 | 64 | 49 | 38 | 60 |
| Avg low °F | 19 | 20 | 29 | 38 | 49 | 59 | 62 | 61 | 54 | 43 | 33 | 24 | 41 |
| Precip in | 2.3 | 2.2 | 2.5 | 3.2 | 4.0 | 3.9 | 3.6 | 3.3 | 2.9 | 2.6 | 2.4 | 2.4 | 35.3 |
1996–2025 normals for Fulton County — the climate division Wauseon sits in. All-time county record high 103.5°F (2012-06-29); record low -19.8°F (1994-01-19). Source: NOAA / National Weather Service.