The official National Weather Service forecast for Boonville — 36.2326°N, 80.7081°W, 6.4 miles from I-77. Forecasts here are written by NWS RNK, this county’s forecast office.
| Yadkin County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 49 | 53 | 61 | 71 | 78 | 85 | 88 | 86 | 80 | 71 | 61 | 52 | 70 |
| Avg low °F | 28 | 31 | 37 | 45 | 53 | 62 | 66 | 65 | 59 | 46 | 36 | 30 | 46 |
| Precip in | 3.5 | 3.2 | 3.5 | 4.0 | 4.3 | 4.1 | 4.6 | 4.5 | 4.4 | 3.1 | 3.0 | 3.8 | 46.0 |
1996–2025 normals for Yadkin County — the climate division Boonville sits in. All-time county record high 101.9°F (1952-07-29); record low -9.0°F (1985-01-21). Source: NOAA / National Weather Service.