Prosper, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Prosper, a town in Collin County, Texas.
This Afternoon
74°F
Mostly Sunny
Mostly sunny. High near 74, with temperatures falling to around 70 in the afternoon. Northwest wind around 15 mph, with gusts as high as 30 mph.
7-day forecast for Prosper
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 74°F | Mostly Sunny | 15 mph NW | 0% |
| Tonight | 51°F | Mostly Clear | 5 to 10 mph NW | 0% |
| Wednesday | 71°F | Mostly Sunny | 0 to 5 mph WNW | 0% |
| Wednesday Night | 52°F | Partly Cloudy then Patchy Fog | 0 to 5 mph SSE | 0% |
| Thursday | 76°F | Mostly Sunny | 5 to 10 mph SSW | 12% |
| Thursday Night | 50°F | Partly Cloudy | 5 to 10 mph NNW | 13% |
| Friday | 70°F | Sunny | 10 mph N | 0% |
| Friday Night | 46°F | Partly Cloudy | 5 mph N | 0% |
| Saturday | 67°F | Mostly Sunny | 5 mph N | 1% |
| Saturday Night | 46°F | Partly Cloudy | 5 mph N | 4% |
| Sunday | 70°F | Sunny | 5 mph NNW | 3% |
| Sunday Night | 45°F | Clear | 0 to 5 mph ESE | 1% |
| Monday | 71°F | Sunny | 0 to 5 mph SSW | 1% |
| Monday Night | 48°F | Mostly Clear | 5 mph S | 0% |
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 Nov 4, 2026.