Prosper, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Prosper, a town in Collin County, Texas.
Tonight
77°F
Clear
Clear. Low around 77, with temperatures rising to around 79 overnight. South wind 5 to 10 mph.
7-day forecast for Prosper
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 77°F | Clear | 5 to 10 mph S | 0% |
| Saturday | 99°F | Sunny | 5 to 10 mph SSW | 0% |
| Saturday Night | 77°F | Mostly Clear | 10 mph S | 0% |
| Sunday | 99°F | Mostly Sunny | 5 to 10 mph S | 12% |
| Sunday Night | 75°F | Chance Showers And Thunderstorms | 5 to 10 mph S | 51% |
| Monday | 94°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 5 mph SW | 51% |
| Monday Night | 72°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 to 10 mph NE | 18% |
| Tuesday | 92°F | Mostly Sunny | 10 mph NNE | 12% |
| Tuesday Night | 70°F | Partly Cloudy | 10 mph NE | 4% |
| Wednesday | 92°F | Mostly Sunny | 5 to 10 mph ENE | 8% |
| Wednesday Night | 71°F | Partly Cloudy | 5 to 10 mph ENE | 2% |
| Thursday | 93°F | Mostly Sunny | 5 to 10 mph E | 5% |
| Thursday Night | 71°F | Partly Cloudy | 5 to 10 mph E | 5% |
| Friday | 92°F | Mostly Sunny | 5 to 10 mph E | 5% |
Forecast source: National Weather Service (api.weather.gov) for Prosper (33.241, -96.812). Updated through the day.
Growing snapshot for Prosper
Last spring frost
Mar 17
First fall frost
Nov 15
Growing season
241 days
Hardiness zone
8b
More local growing data for Prosper: nearby ZIP 75078 weather · frost dates · planting calendar · Texas frost dates
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Climate data from the nearest NOAA station, Mckinney Municipal Airport, Tx (13.3 mi from Prosper). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.