The official National Weather Service forecast for Gastonia — 35.2621°N, 81.1873°W, population 176,897, 1.8 miles from I-85. Forecasts here are written by NWS GSP, this county’s forecast office.
| Gaston County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 52 | 57 | 64 | 73 | 80 | 86 | 90 | 88 | 82 | 73 | 63 | 55 | 72 |
| Avg low °F | 30 | 33 | 40 | 47 | 56 | 64 | 68 | 67 | 61 | 49 | 38 | 33 | 49 |
| Precip in | 3.6 | 3.2 | 3.9 | 4.0 | 4.0 | 4.0 | 4.2 | 4.2 | 4.1 | 2.8 | 3.1 | 4.0 | 45.1 |
1996–2025 normals for Gaston County — the climate division Gastonia sits in. All-time county record high 104.0°F (1983-08-22); record low -4.5°F (1985-01-22). Source: NOAA / National Weather Service.