Hart, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hart, a city in Castro County, Texas.
Overnight
39°F
Mostly Cloudy
Mostly cloudy, with a low around 39. West wind around 5 mph.
7-day forecast for Hart
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 39°F | Mostly Cloudy | 5 mph W | 0% |
| Wednesday | 65°F | Mostly Sunny | 5 to 15 mph SW | 0% |
| Wednesday Night | 45°F | Mostly Clear | 5 to 10 mph SSW | 0% |
| Thursday | 57°F | Mostly Sunny | 10 to 25 mph NNW | 0% |
| Thursday Night | 36°F | Mostly Clear | 5 mph NNW | 0% |
| Friday | 60°F | Mostly Sunny | 0 to 5 mph ESE | 0% |
| Friday Night | 38°F | Mostly Cloudy | 0 to 5 mph S | 1% |
| Saturday | 59°F | Mostly Sunny | 0 to 5 mph S | 11% |
| Saturday Night | 38°F | Partly Cloudy | 0 to 5 mph SW | 1% |
| Sunday | 61°F | Sunny | 0 to 5 mph NW | 1% |
| Sunday Night | 39°F | Clear | 0 to 5 mph SSW | 1% |
| Monday | 66°F | Sunny | 5 to 10 mph SW | 0% |
| Monday Night | 42°F | Mostly Clear | 5 mph SW | 0% |
| Tuesday | 66°F | Mostly Sunny | 5 to 10 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Hart (34.386, -102.115). Updated through the day.
Growing snapshot for Hart
Last spring frost
Apr 22
First fall frost
Oct 21
Growing season
182 days
Hardiness zone
7a
More local growing data for Hart: nearby ZIP 79043 weather · frost dates · planting calendar · Texas frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Hart, Tx (1 mi from Hart). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.