The official National Weather Service forecast for Harrod — 40.7064°N, 83.9213°W, 8.1 miles from I-75.
| Allen 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 | 20 | 22 | 30 | 40 | 51 | 60 | 63 | 62 | 55 | 44 | 34 | 25 | 42 |
| Precip in | 2.5 | 2.4 | 3.0 | 3.8 | 4.5 | 4.2 | 4.1 | 3.6 | 3.1 | 2.8 | 2.6 | 2.7 | 39.3 |
1996–2025 normals for Allen County — the climate division Harrod sits in. All-time county record high 103.0°F (1988-06-26); record low -22.3°F (1994-01-19). Source: NOAA / National Weather Service.