The official National Weather Service forecast for Dunlap — 35.3715°N, 85.3905°W, 23.7 miles from I-24.
| Sequatchie County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 46 | 51 | 60 | 68 | 76 | 83 | 85 | 85 | 80 | 70 | 59 | 50 | 68 |
| Avg low °F | 28 | 32 | 39 | 46 | 56 | 62 | 66 | 65 | 59 | 48 | 38 | 32 | 48 |
| Precip in | 5.7 | 5.7 | 5.7 | 5.6 | 4.8 | 5.1 | 5.0 | 4.1 | 4.7 | 3.8 | 4.5 | 6.1 | 60.8 |
1996–2025 normals for Sequatchie County — the climate division Dunlap sits in. All-time county record high 102.1°F (2012-06-30); record low -17.7°F (1985-01-21). Source: NOAA / National Weather Service.