The official National Weather Service forecast for Aynor — 33.9999°N, 79.1995°W, 30.4 miles from I-95. Forecasts here are written by NWS ILM, this county’s forecast office.
| Horry County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 57 | 61 | 68 | 75 | 82 | 88 | 90 | 89 | 84 | 76 | 67 | 60 | 75 |
| Avg low °F | 35 | 38 | 44 | 51 | 60 | 68 | 71 | 71 | 65 | 54 | 44 | 38 | 53 |
| Precip in | 3.0 | 3.3 | 3.4 | 3.3 | 3.9 | 4.9 | 6.0 | 6.6 | 6.0 | 3.6 | 3.0 | 3.6 | 50.6 |
1996–2025 normals for Horry County — the climate division Aynor sits in. All-time county record high 103.6°F (1952-06-27); record low 3.1°F (1985-01-21). Source: NOAA / National Weather Service.