National Weather Service

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Fair

24°C

76°F

Humidity	92%
Wind Speed	SE 6 km/h
Barometer	30.02 in
Dewpoint	23°C (74°F)
Visibility	16 km
Heat Index	24°C (76°F)
Last update	14 Jul 11:55 pm CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Grayson County Airport TX

Overnight
Low: 23 °C
Partly Cloudy
Tuesday
High: 33 °C
Mostly Sunny
then Slight
Chance
T-storms
Tuesday Night
Low: 23 °C
Partly Cloudy
Wednesday
High: 34 °C
Sunny
Wednesday Night
Low: 24 °C
Mostly Clear
Thursday
High: 36 °C
Sunny
Thursday Night
Low: 23 °C
Mostly Clear
Friday
High: 36 °C
Sunny
Friday Night
Low: 24 °C
Mostly Clear

Detailed Forecast

Overnight

Partly cloudy, with a low around 23. South wind 5 to 10 km/h.

Tuesday

A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 33. Heat index values as high as 38. South southwest wind 10 to 15 km/h.

Tuesday Night

Partly cloudy, with a low around 23. South wind 10 to 15 km/h.

Wednesday

Sunny, with a high near 34. Heat index values as high as 39. South wind 10 to 20 km/h, with gusts as high as 30 km/h.

Wednesday Night

Mostly clear, with a low around 24. South wind 10 to 15 km/h.

Thursday

Sunny, with a high near 36. South wind 10 to 15 km/h.

Thursday Night

Mostly clear, with a low around 23. South wind 5 to 10 km/h.

Friday

Sunny, with a high near 36. South southwest wind 5 to 15 km/h.