The official National Weather Service forecast for Locust Grove — 36.2001°N, 95.1677°W, 19.4 miles from I-44. Forecasts here are written by NWS TSA, this county’s forecast office.
| Mayes County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 48 | 53 | 62 | 72 | 79 | 87 | 92 | 92 | 85 | 73 | 61 | 51 | 71 |
| Avg low °F | 26 | 30 | 40 | 48 | 57 | 67 | 71 | 70 | 61 | 49 | 39 | 30 | 49 |
| Precip in | 2.1 | 2.2 | 3.7 | 4.5 | 6.8 | 4.8 | 3.7 | 3.5 | 3.6 | 4.4 | 3.1 | 2.4 | 44.8 |
1996–2025 normals for Mayes County — the climate division Locust Grove sits in. All-time county record high 113.9°F (1954-07-14); record low -12.5°F (2021-02-17). Source: NOAA / National Weather Service.