Current conditions at
Sherman/Denison, Grayson County Airport (KGYI)
Lat: 33.72°NLon: 96.67°WElev: 748ft.
Fair
37°F
3°C
| Humidity | 33% |
| Wind Speed | SW 16 mph |
| Barometer | 30.30 in |
| Dewpoint | 10°F (-12°C) |
| Visibility | 9.00 mi |
| Wind Chill | 28°F (-2°C) |
| Last update | 18 Jan 10:50 am CST |
Extended Forecast for
Whitesboro TX
Today

High: 57 °F
Sunny
Tonight

Low: 29 °F
Mostly Clear
M.L.King Day

High: 44 °F
Mostly Sunny
Monday Night

Low: 24 °F
Partly Cloudy
Tuesday

High: 49 °F
Sunny
Tuesday Night
Low: 39 °F
Mostly Cloudy
then Slight
Chance
ShowersWednesday

High: 56 °F
Partly Sunny
Wednesday Night

Low: 35 °F
Partly Cloudy
Thursday

High: 56 °F
Mostly Sunny
Detailed Forecast
Today
Sunny, with a high near 57. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 29. Light and variable wind becoming north northeast 5 to 10 mph after midnight.
M.L.King Day
Mostly sunny, with a high near 44. Wind chill values between 20 and 30. Northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 24. Northeast wind 5 to 10 mph becoming light after midnight.
Tuesday
Sunny, with a high near 49. Calm wind becoming south around 5 mph in the morning.
Tuesday Night
A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 39. South wind around 5 mph.
Wednesday
Partly sunny, with a high near 56. South wind around 5 mph becoming northeast in the afternoon.
Wednesday Night
Partly cloudy, with a low around 35. North northeast wind around 5 mph.
Thursday
Mostly sunny, with a high near 56. North northeast wind 5 to 10 mph becoming south southeast in the afternoon.
Thursday Night
Partly cloudy, with a low around 40.
Friday
Partly sunny, with a high near 64.
Friday Night
Mostly cloudy, with a low around 39.
Saturday
Partly sunny, with a high near 54.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Whitesboro TX
33.66°N 96.9°W (Elev. 801 ft)
33.66°N 96.9°W (Elev. 801 ft)
5:06 am CST Jan 18, 2026
11am CST Jan 18, 2026-6pm CST Jan 24, 2026


