Whitesboro, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Whitesboro, a city in Grayson County, Texas.
This Afternoon
97°F
Sunny
Sunny. High near 97, with temperatures falling to around 94 in the afternoon. Heat index values as high as 98. South wind around 10 mph.
7-day forecast for Whitesboro
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 97°F | Sunny | 10 mph S | 0% |
| Tonight | 75°F | Mostly Clear | 5 to 10 mph S | 0% |
| Sunday | 98°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 to 10 mph S | 33% |
| Sunday Night | 70°F | Showers And Thunderstorms Likely | 0 to 5 mph S | 56% |
| Monday | 92°F | Rain Showers Likely | 0 to 5 mph ENE | 56% |
| Monday Night | 68°F | Chance Showers And Thunderstorms then Partly Cloudy | 5 mph NE | 36% |
| Tuesday | 89°F | Mostly Sunny | 10 mph NNE | 13% |
| Tuesday Night | 65°F | Partly Cloudy | 5 to 10 mph NE | 5% |
| Wednesday | 90°F | Sunny | 5 to 10 mph ENE | 8% |
| Wednesday Night | 67°F | Partly Cloudy | 5 mph E | 1% |
| Thursday | 92°F | Mostly Sunny | 5 mph ESE | 2% |
| Thursday Night | 67°F | Partly Cloudy | 5 mph ENE | 2% |
| Friday | 92°F | Partly Sunny | 5 mph ESE | 5% |
| Friday Night | 69°F | Mostly Cloudy | 5 mph E | 3% |
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
Nearby towns & communities
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Lake Kiowa
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Sadler
Sherman
Sherwood Shores
Southmayd
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Tom Bean
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Whitewright
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 Sep 19, 2026.