The official National Weather Service forecast for Dellroy — 40.5545°N, 81.1996°W, 14.6 miles from I-77.
| Carroll County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 35 | 39 | 49 | 62 | 71 | 79 | 83 | 82 | 76 | 64 | 51 | 40 | 61 |
| Avg low °F | 20 | 22 | 29 | 39 | 48 | 57 | 61 | 60 | 53 | 43 | 33 | 26 | 41 |
| Precip in | 2.9 | 2.7 | 3.2 | 3.8 | 4.2 | 4.7 | 4.1 | 3.7 | 3.5 | 3.2 | 2.7 | 3.1 | 41.8 |
1996–2025 normals for Carroll County — the climate division Dellroy sits in. All-time county record high 99.1°F (1988-07-08); record low -23.8°F (1994-01-19). Source: NOAA / National Weather Service.