The official National Weather Service forecast for Fort Walton Beach — 30.4206°N, 86.6171°W, 20.8 miles from I-10. Forecasts here are written by NWS MOB, this county’s forecast office.
| Okaloosa County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 62 | 66 | 73 | 78 | 85 | 90 | 91 | 91 | 88 | 81 | 71 | 65 | 78 |
| Avg low °F | 39 | 43 | 49 | 54 | 63 | 70 | 72 | 72 | 68 | 57 | 47 | 43 | 56 |
| Precip in | 4.4 | 4.5 | 4.7 | 5.0 | 4.0 | 6.1 | 6.7 | 6.6 | 5.7 | 3.8 | 3.7 | 5.4 | 60.6 |
1996–2025 normals for Okaloosa County — the climate division Fort Walton Beach sits in. All-time county record high 103.8°F (1980-07-15); record low 4.3°F (1985-01-21). Source: NOAA / National Weather Service.