The official National Weather Service forecast for Wapakoneta — 40.5678°N, 84.1936°W, population 10,849, 1.3 miles from I-75.
| Auglaize County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 34 | 38 | 49 | 62 | 72 | 81 | 84 | 82 | 77 | 65 | 51 | 39 | 61 |
| Avg low °F | 19 | 22 | 30 | 39 | 51 | 60 | 63 | 61 | 54 | 44 | 33 | 25 | 42 |
| Precip in | 2.7 | 2.4 | 3.1 | 3.9 | 4.5 | 4.3 | 4.0 | 3.4 | 3.1 | 2.9 | 2.6 | 2.8 | 39.7 |
1996–2025 normals for Auglaize County — the climate division Wapakoneta sits in. All-time county record high 103.1°F (2012-06-29); record low -23.3°F (1994-01-19). Source: NOAA / National Weather Service.