The official National Weather Service forecast for West College Corner — 39.5675°N, 84.8161°W, 18.2 miles from I-70. Forecasts here are written by NWS ILN, this county’s forecast office.
| Union County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 36 | 41 | 52 | 64 | 74 | 82 | 85 | 83 | 78 | 66 | 52 | 41 | 63 |
| Avg low °F | 20 | 23 | 32 | 41 | 51 | 60 | 63 | 62 | 54 | 43 | 33 | 26 | 42 |
| Precip in | 3.4 | 2.7 | 3.9 | 4.6 | 4.9 | 5.2 | 4.4 | 3.0 | 3.2 | 3.2 | 3.1 | 3.4 | 45.0 |
1996–2025 normals for Union County — the climate division West College Corner sits in. All-time county record high 102.7°F (2012-06-29); record low -26.6°F (1994-01-19). Source: NOAA / National Weather Service.