The official National Weather Service forecast for Letona — 35.3618°N, 91.8293°W, 38.2 miles from I-40. Forecasts here are written by NWS LZK, this county’s forecast office.
| White County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 49 | 53 | 63 | 72 | 80 | 88 | 91 | 90 | 85 | 74 | 62 | 52 | 72 |
| Avg low °F | 31 | 35 | 42 | 50 | 60 | 68 | 71 | 70 | 63 | 51 | 41 | 34 | 51 |
| Precip in | 3.7 | 4.1 | 5.1 | 5.4 | 5.9 | 3.6 | 3.6 | 3.3 | 3.6 | 4.0 | 4.3 | 4.9 | 51.5 |
1996–2025 normals for White County — the climate division Letona sits in. All-time county record high 108.7°F (2011-08-04); record low -4.4°F (1983-12-25). Source: NOAA / National Weather Service.