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Thornton, TX Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Thornton, a town in Limestone County, Texas.

Tonight
70°F
Clear
Clear. Low around 70, with temperatures rising to around 72 overnight. South wind 0 to 5 mph.

7-day forecast for Thornton

WhenTempForecastWindPrecip
Tonight 70°F Clear 0 to 5 mph S 0%
Saturday 97°F Sunny 0 to 5 mph SSW 0%
Saturday Night 71°F Mostly Clear 5 mph S 0%
Sunday 98°F Mostly Sunny 0 to 5 mph S 0%
Sunday Night 73°F Partly Cloudy 5 mph S 9%
Monday 97°F Mostly Sunny 0 to 5 mph S 13%
Monday Night 72°F Partly Cloudy 0 to 5 mph SE 13%
Tuesday 96°F Mostly Sunny then Slight Chance Showers And Thunderstorms 0 to 5 mph NNE 17%
Tuesday Night 72°F Slight Chance Showers And Thunderstorms then Partly Cloudy 0 to 5 mph NE 17%
Wednesday 96°F Mostly Sunny 5 mph NE 6%
Wednesday Night 71°F Partly Cloudy 0 to 5 mph ENE 3%
Thursday 95°F Mostly Sunny 5 to 10 mph ENE 3%
Thursday Night 70°F Partly Cloudy 0 to 10 mph ENE 3%
Friday 94°F Mostly Sunny 0 to 5 mph ENE 2%

Forecast source: National Weather Service (api.weather.gov) for Thornton (31.410, -96.574). Updated through the day.

Growing snapshot for Thornton

Last spring frost
Mar 13
First fall frost
Nov 22
Growing season
251 days
Hardiness zone
8b

More local growing data for Thornton: nearby ZIP 76687 weather · frost dates · planting calendar · Texas frost dates

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Climate data from the nearest NOAA station, Mexia, Tx (17.3 mi from Thornton). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.