The official National Weather Service forecast for Dublin — 40.0992°N, 83.1141°W, 6.7 miles from I-71.
| Franklin County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 37 | 41 | 52 | 64 | 74 | 82 | 85 | 84 | 78 | 66 | 53 | 42 | 63 |
| Avg low °F | 21 | 24 | 32 | 41 | 52 | 61 | 64 | 62 | 55 | 44 | 34 | 27 | 43 |
| Precip in | 2.8 | 2.5 | 3.5 | 4.0 | 4.6 | 4.5 | 4.2 | 3.5 | 3.3 | 2.9 | 2.7 | 3.1 | 41.6 |
1996–2025 normals for Franklin County — the climate division Dublin sits in. All-time county record high 102.2°F (1988-06-26); record low -23.8°F (1994-01-19). Source: NOAA / National Weather Service.