The official National Weather Service forecast for Chesterhill — 39.4884°N, 81.866°W, 22 miles from I-77.
| Morgan County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 38 | 43 | 53 | 65 | 74 | 81 | 84 | 84 | 78 | 66 | 54 | 43 | 64 |
| Avg low °F | 22 | 24 | 31 | 40 | 50 | 58 | 62 | 61 | 54 | 43 | 33 | 27 | 42 |
| Precip in | 3.2 | 2.9 | 3.6 | 3.9 | 4.4 | 4.7 | 4.5 | 3.6 | 3.4 | 3.1 | 2.8 | 3.3 | 43.4 |
1996–2025 normals for Morgan County — the climate division Chesterhill sits in. All-time county record high 100.8°F (2012-07-08); record low -27.4°F (1994-01-20). Source: NOAA / National Weather Service.