The official National Weather Service forecast for Mayo — 35.084°N, 81.8598°W, 3.9 miles from I-85. Forecasts here are written by NWS GSP, this county’s forecast office.
| Spartanburg County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 52 | 57 | 65 | 73 | 80 | 87 | 90 | 88 | 82 | 73 | 63 | 55 | 72 |
| Avg low °F | 31 | 35 | 41 | 48 | 57 | 65 | 69 | 68 | 62 | 50 | 40 | 34 | 50 |
| Precip in | 4.2 | 3.7 | 4.4 | 4.2 | 4.0 | 4.0 | 4.3 | 4.3 | 4.2 | 3.3 | 3.5 | 4.5 | 48.6 |
1996–2025 normals for Spartanburg County — the climate division Mayo sits in. All-time county record high 103.7°F (2012-07-02); record low -3.4°F (1985-01-22). Source: NOAA / National Weather Service.