The official National Weather Service forecast for Union City — 40.202°N, 84.8091°W, population 5,079, 23.1 miles from I-70. Forecasts here are written by NWS IND, this county’s forecast office.
| Randolph County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 34 | 38 | 50 | 62 | 72 | 81 | 84 | 82 | 77 | 65 | 51 | 39 | 61 |
| Avg low °F | 19 | 22 | 31 | 40 | 50 | 60 | 62 | 60 | 53 | 43 | 32 | 25 | 41 |
| Precip in | 2.8 | 2.5 | 3.5 | 4.2 | 4.5 | 4.7 | 4.0 | 3.5 | 3.1 | 3.0 | 2.9 | 3.0 | 41.7 |
1996–2025 normals for Randolph County — the climate division Union City sits in. All-time county record high 103.2°F (2012-06-29); record low -27.1°F (1994-01-19). Source: NOAA / National Weather Service.