Grand Prairie, TX Weather & Growing Conditions
Today
100°F
Mostly Sunny
Mostly sunny, with a high near 100. Heat index values as high as 102. South wind 5 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 100°F | Mostly Sunny | 5 to 10 mph S | 0% |
| Tonight | 78°F | Mostly Clear | 10 mph SSE | 0% |
| Sunday | 100°F | Mostly Sunny | 5 to 10 mph S | 14% |
| Sunday Night | 77°F | Chance Showers And Thunderstorms | 5 mph S | 39% |
| Monday | 97°F | Chance Showers And Thunderstorms | 5 mph W | 39% |
| Monday Night | 75°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 mph NE | 21% |
| Tuesday | 93°F | Mostly Sunny | 5 to 10 mph NE | 11% |
| Tuesday Night | 73°F | Partly Cloudy | 5 to 10 mph NE | 8% |
| Wednesday | 94°F | Mostly Sunny | 5 to 10 mph ENE | 6% |
| Wednesday Night | 73°F | Partly Cloudy | 5 to 10 mph E | 2% |
| Thursday | 94°F | Mostly Sunny | 5 to 10 mph E | 3% |
| Thursday Night | 73°F | Partly Cloudy | 5 to 10 mph E | 2% |
| Friday | 94°F | Mostly Sunny | 5 to 10 mph E | 2% |
| Friday Night | 73°F | Partly Cloudy | 5 to 10 mph E | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Grand Prairie, TX
Last spring frost
Mar 9
First fall frost
Nov 20
Growing season
253 days
Hardiness zone
8b
Explore more for Grand Prairie, TX: full frost dates · planting calendar · Texas frost dates
Climate data from the nearest NOAA station, Arlington Six Flags, Tx (5.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.