The official National Weather Service forecast for Bluefield — 37.2698°N, 81.2223°W, population 40,750, 5.4 miles from I-77.
| Mercer County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 41 | 46 | 54 | 65 | 73 | 79 | 81 | 80 | 75 | 65 | 54 | 45 | 63 |
| Avg low °F | 23 | 26 | 32 | 40 | 49 | 56 | 60 | 59 | 53 | 42 | 32 | 27 | 42 |
| Precip in | 3.2 | 3.1 | 3.5 | 3.9 | 4.8 | 3.7 | 4.6 | 3.6 | 3.4 | 2.8 | 2.5 | 3.1 | 42.2 |
1996–2025 normals for Mercer County — the climate division Bluefield sits in. All-time county record high 96.8°F (2012-06-30); record low -21.7°F (1985-01-21). Source: NOAA / National Weather Service.