Dennis, TX Weather & Growing Conditions
Today
100°F
Sunny
Sunny. High near 100, with temperatures falling to around 97 in the afternoon. Heat index values as high as 104. South wind 5 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 100°F | Sunny | 5 to 10 mph S | 0% |
| Tonight | 74°F | Mostly Clear | 5 to 10 mph SSE | 1% |
| Sunday | 100°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 to 10 mph S | 32% |
| 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 | 15% |
| Tuesday Night | 67°F | Partly Cloudy | 5 to 10 mph NE | 12% |
| Wednesday | 91°F | Mostly Sunny | 5 to 10 mph ENE | 10% |
| Wednesday Night | 68°F | Partly Cloudy | 5 mph E | 9% |
| Thursday | 92°F | Mostly Sunny | 5 mph ESE | 5% |
| Thursday Night | 68°F | Mostly Cloudy | 0 to 5 mph ESE | 3% |
| Friday | 93°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). Updated through the day.
Growing snapshot for Dennis, TX
Last spring frost
Mar 24
First fall frost
Nov 9
Growing season
228 days
Hardiness zone
8a
Explore more for Dennis, TX: full frost dates · planting calendar · Texas frost dates
Climate data from the nearest NOAA station, Granbury 5N, Tx (9.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.