The official National Weather Service forecast for Tull — 34.4479°N, 92.5763°W, 7.4 miles from I-30. Forecasts here are written by NWS LZK, this county’s forecast office.
| Grant County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 53 | 57 | 66 | 74 | 82 | 89 | 93 | 92 | 87 | 76 | 64 | 55 | 74 |
| Avg low °F | 32 | 35 | 42 | 50 | 60 | 68 | 71 | 70 | 63 | 51 | 41 | 35 | 52 |
| Precip in | 4.0 | 4.6 | 5.7 | 5.9 | 6.2 | 4.1 | 3.7 | 3.4 | 3.4 | 4.6 | 4.4 | 5.2 | 55.2 |
1996–2025 normals for Grant County — the climate division Tull sits in. All-time county record high 109.2°F (2011-08-04); record low -2.5°F (1962-01-12). Source: NOAA / National Weather Service.