The official National Weather Service forecast for Slaughterville — 35.0873°N, 97.335°W, 20.1 miles from I-44. Forecasts here are written by NWS OUN, this county’s forecast office.
| Cleveland County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 51 | 55 | 64 | 73 | 80 | 88 | 94 | 94 | 86 | 75 | 63 | 53 | 73 |
| Avg low °F | 28 | 31 | 41 | 49 | 58 | 67 | 71 | 70 | 62 | 51 | 40 | 31 | 50 |
| Precip in | 1.5 | 1.6 | 2.7 | 4.0 | 5.2 | 4.7 | 3.3 | 3.3 | 3.1 | 3.7 | 2.1 | 1.8 | 37.0 |
1996–2025 normals for Cleveland County — the climate division Slaughterville sits in. All-time county record high 110.9°F (2012-08-02); record low -8.6°F (1989-12-23). Source: NOAA / National Weather Service.