The official National Weather Service forecast for Post — 33.1912°N, 101.379°W, 35.9 miles from I-27. Forecasts here are written by NWS LUB, this county’s forecast office.
| Garza County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 57 | 61 | 70 | 78 | 86 | 93 | 95 | 95 | 87 | 78 | 66 | 58 | 77 |
| Avg low °F | 30 | 33 | 41 | 48 | 59 | 68 | 71 | 70 | 63 | 52 | 40 | 32 | 51 |
| Precip in | 0.7 | 0.7 | 1.2 | 1.6 | 2.7 | 3.1 | 1.9 | 2.2 | 2.5 | 1.7 | 1.1 | 0.7 | 20.1 |
1996–2025 normals for Garza County — the climate division Post sits in. All-time county record high 115.6°F (1994-06-28); record low -0.8°F (1989-12-23). Source: NOAA / National Weather Service.