Whitesboro, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Whitesboro, a city in Grayson County, Texas.
Today
100°F
Sunny
Sunny, with a high near 100. Heat index values as high as 101. South wind 5 to 10 mph.
7-day forecast for Whitesboro
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 100°F | Sunny | 5 to 10 mph S | 0% |
| Tonight | 76°F | Mostly Clear | 5 to 10 mph SSE | 0% |
| Wednesday | 100°F | Sunny | 5 to 10 mph SSW | 0% |
| Wednesday Night | 77°F | Mostly Clear | 5 to 10 mph S | 0% |
| Thursday | 98°F | Sunny | 5 to 10 mph SSW | 2% |
| Thursday Night | 77°F | Mostly Clear | 5 to 10 mph SSE | 2% |
| Friday | 97°F | Sunny | 5 mph S | 9% |
| Friday Night | 76°F | Mostly Clear | 5 mph SSE | 8% |
| Saturday | 96°F | Sunny | 5 mph S | 6% |
| Saturday Night | 76°F | Mostly Clear | 5 mph SSE | 5% |
| Sunday | 96°F | Sunny | 5 to 10 mph S | 4% |
| Sunday Night | 76°F | Mostly Clear | 5 to 10 mph SSE | 4% |
| Monday | 96°F | Sunny | 10 mph S | 2% |
| Monday Night | 76°F | Mostly Clear | 10 mph S | 2% |
Forecast source: National Weather Service (api.weather.gov) for Whitesboro (33.660, -96.904). Updated through the day.
Growing snapshot for Whitesboro
Last spring frost
Mar 19
First fall frost
Nov 14
Growing season
242 days
Hardiness zone
8a
More local growing data for Whitesboro: nearby ZIP 76273 weather · frost dates · planting calendar · Texas frost dates
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Climate data from the nearest NOAA station, Gainesville 5 Ene, Tx (9.8 mi from Whitesboro). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.