The official National Weather Service forecast for Logan — 37.8487°N, 81.9935°W, population 8,821, 35.7 miles from I-77.
| Logan County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 43 | 48 | 58 | 69 | 76 | 83 | 85 | 85 | 79 | 69 | 57 | 48 | 67 |
| Avg low °F | 25 | 29 | 34 | 43 | 52 | 60 | 64 | 63 | 57 | 46 | 35 | 29 | 45 |
| Precip in | 3.7 | 3.7 | 4.0 | 4.4 | 5.0 | 4.6 | 5.6 | 4.2 | 3.5 | 3.2 | 3.1 | 3.9 | 48.9 |
1996–2025 normals for Logan County — the climate division Logan sits in. All-time county record high 101.1°F (2012-06-30); record low -17.1°F (1994-01-19). Source: NOAA / National Weather Service.