The official National Weather Service forecast for Deersville — 40.3076°N, 81.1865°W, 17.6 miles from I-70.
| Harrison County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 36 | 40 | 50 | 63 | 72 | 80 | 83 | 82 | 76 | 64 | 52 | 41 | 62 |
| Avg low °F | 21 | 22 | 30 | 39 | 49 | 58 | 62 | 61 | 54 | 43 | 33 | 26 | 42 |
| Precip in | 3.1 | 2.8 | 3.2 | 3.9 | 4.3 | 4.6 | 3.9 | 3.7 | 3.4 | 3.2 | 2.8 | 3.1 | 42.0 |
1996–2025 normals for Harrison County — the climate division Deersville sits in. All-time county record high 99.1°F (1953-09-03); record low -23.9°F (1994-01-19). Source: NOAA / National Weather Service.