The official National Weather Service forecast for Jasper — 33.8312°N, 87.2775°W, population 13,274, 2.1 miles from I-22. Forecasts here are written by NWS BMX, this county’s forecast office.
| Walker County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 54 | 59 | 67 | 75 | 82 | 88 | 91 | 90 | 86 | 76 | 65 | 57 | 74 |
| Avg low °F | 32 | 36 | 42 | 49 | 58 | 66 | 70 | 69 | 63 | 51 | 40 | 35 | 51 |
| Precip in | 5.4 | 5.6 | 5.7 | 5.5 | 4.6 | 4.8 | 5.0 | 3.9 | 3.9 | 3.4 | 4.1 | 5.4 | 57.3 |
1996–2025 normals for Walker County — the climate division Jasper sits in. All-time county record high 107.6°F (1952-07-29); record low -6.5°F (1985-01-21). Source: NOAA / National Weather Service.