The official National Weather Service forecast for Jefferson — 34.117°N, 83.5724°W, population 11,842, 6.1 miles from I-85. Forecasts here are written by NWS FFC, this county’s forecast office.
| Jackson County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 53 | 58 | 65 | 73 | 80 | 87 | 89 | 88 | 83 | 74 | 64 | 56 | 72 |
| Avg low °F | 33 | 36 | 42 | 48 | 58 | 65 | 69 | 68 | 62 | 51 | 41 | 36 | 51 |
| Precip in | 4.9 | 4.6 | 4.8 | 4.1 | 4.1 | 4.4 | 4.3 | 4.5 | 4.0 | 3.2 | 3.6 | 4.7 | 51.2 |
1996–2025 normals for Jackson County — the climate division Jefferson sits in. All-time county record high 104.9°F (2012-06-30); record low -3.7°F (1985-01-21). Source: NOAA / National Weather Service.