The official National Weather Service forecast for Stantonville — 35.1584°N, 88.4259°W, 40.6 miles from I-40.
| McNairy County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 50 | 54 | 64 | 73 | 80 | 87 | 90 | 90 | 85 | 74 | 62 | 53 | 72 |
| Avg low °F | 30 | 33 | 40 | 48 | 58 | 66 | 69 | 67 | 60 | 48 | 38 | 33 | 49 |
| Precip in | 4.9 | 5.4 | 5.9 | 5.4 | 5.0 | 4.5 | 4.3 | 4.1 | 3.9 | 3.8 | 3.9 | 5.4 | 56.5 |
1996–2025 normals for McNairy County — the climate division Stantonville sits in. All-time county record high 107.4°F (1952-07-28); record low -15.7°F (1951-02-02). Source: NOAA / National Weather Service.