The official National Weather Service forecast for East Flat Rock — 35.2801°N, 82.4221°W, 1.4 miles from I-26. Forecasts here are written by NWS GSP, this county’s forecast office.
| Henderson County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 47 | 51 | 58 | 67 | 74 | 80 | 82 | 81 | 76 | 67 | 58 | 50 | 66 |
| Avg low °F | 27 | 31 | 37 | 44 | 52 | 60 | 63 | 63 | 57 | 46 | 36 | 31 | 46 |
| Precip in | 5.0 | 4.2 | 4.8 | 5.0 | 5.0 | 4.7 | 5.1 | 5.1 | 5.5 | 4.4 | 4.3 | 5.2 | 58.3 |
1996–2025 normals for Henderson County — the climate division East Flat Rock sits in. All-time county record high 95.7°F (2012-07-02); record low -12.1°F (1985-01-22). Source: NOAA / National Weather Service.