Dennis, TX Weather & Growing Conditions

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

Today

99°F

Sunny

Sunny. High near 99, with temperatures falling to around 95 in the afternoon. Heat index values as high as 102. South wind around 10 mph.

7-day forecast for Dennis

When	Temp	Forecast	Wind	Precip
Today	99°F	Sunny	10 mph S	0%
Tonight	75°F	Mostly Clear	5 to 10 mph SSE	1%
Sunday	100°F	Mostly Sunny then Chance Showers And Thunderstorms	5 to 10 mph S	31%
Sunday Night	71°F	Chance Showers And Thunderstorms	0 to 5 mph SSE	46%
Monday	95°F	Chance Showers And Thunderstorms	0 to 5 mph W	30%
Monday Night	70°F	Chance Showers And Thunderstorms	5 mph NE	28%
Tuesday	91°F	Slight Chance Showers And Thunderstorms then Mostly Sunny	5 to 10 mph NE	16%
Tuesday Night	67°F	Partly Cloudy	5 to 10 mph NE	13%
Wednesday	91°F	Mostly Sunny	5 to 10 mph ENE	10%
Wednesday Night	68°F	Partly Cloudy	5 mph E	10%
Thursday	92°F	Mostly Sunny	5 mph ESE	5%
Thursday Night	68°F	Partly Cloudy	0 to 5 mph ESE	3%
Friday	92°F	Mostly Sunny	0 to 10 mph ESE	4%
Friday Night	68°F	Partly Cloudy	0 to 10 mph E	4%

Forecast source: National Weather Service (api.weather.gov) for Dennis (32.608, -97.938). Updated through the day.

Growing snapshot for Dennis

Last spring frost

Mar 24

First fall frost

Nov 9

Growing season

228 days

Hardiness zone

More local growing data for Dennis: nearby ZIP 76439 weather · frost dates · planting calendar · Texas frost dates

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Climate data from the nearest NOAA station, Granbury 5N, Tx (9.6 mi from Dennis). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.