The official National Weather Service forecast for Warrenton — 33.4071°N, 82.6621°W, 7 miles from I-20. Forecasts here are written by NWS FFC, this county’s forecast office.
| Warren County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 57 | 61 | 68 | 76 | 83 | 89 | 91 | 90 | 85 | 76 | 67 | 59 | 75 |
| Avg low °F | 34 | 38 | 43 | 50 | 58 | 66 | 70 | 69 | 63 | 52 | 42 | 37 | 52 |
| Precip in | 4.0 | 4.0 | 4.3 | 3.3 | 3.5 | 3.9 | 4.1 | 4.4 | 4.1 | 2.5 | 2.9 | 4.4 | 45.4 |
1996–2025 normals for Warren County — the climate division Warrenton sits in. All-time county record high 107.2°F (2012-07-01); record low -3.2°F (1985-01-21). Source: NOAA / National Weather Service.