Three Weather Areas of Concern Today

Potential Tropical Cyclone Three will gradually approach the northern Gulf Coast with heavy rain and potential flooding. Meanwhile, a sharp cold front will produce severe thunderstorms with significant winds, hail, tornadoes and possible flooding across the Ohio Valley. Finally, a large dome of high pressure will continue the major heat wave over the West, extending into the central Plains. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

En Español

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Partly Cloudy

91°F

33°C

Humidity	52%
Wind Speed	SE 8 mph
Barometer	29.95 in
Dewpoint	72°F (22°C)
Visibility	10.00 mi
Heat Index	98°F (37°C)
Last update	18 Jun 1:50 pm CDT

More Information:

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

Extended Forecast for

Grayson County Airport TX

This
Afternoon

Mostly Sunny
High: 93 °F
Tonight

Mostly Clear
Low: 73 °F
Saturday

Sunny
High: 93 °F
Saturday
Night

Mostly Clear
Low: 73 °F
Sunday

Sunny
High: 96 °F
Sunday
Night

Mostly Clear
Low: 75 °F
Monday

Partly Sunny
then Chance
T-storms
High: 89 °F
Monday
Night

Chance
T-storms
Low: 65 °F
Tuesday

Slight Chance
T-storms
High: 82 °F

Detailed Forecast

This Afternoon

Mostly sunny, with a high near 93. Heat index values as high as 98. Southeast wind around 10 mph.

Tonight

Mostly clear, with a low around 73. Southeast wind 5 to 10 mph.

Saturday

Sunny, with a high near 93. South southeast wind 5 to 10 mph.

Saturday Night

Mostly clear, with a low around 73. South southeast wind around 5 mph.

Sunday

Sunny, with a high near 96. South wind 10 to 15 mph, with gusts as high as 20 mph.

Sunday Night

Mostly clear, with a low around 75. South wind around 15 mph, with gusts as high as 20 mph.

Monday

A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 89. South wind around 15 mph becoming east in the afternoon. Winds could gust as high as 25 mph.

Monday Night

A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.

Tuesday

A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 82. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.

Tuesday Night

Mostly clear, with a low around 67.

Wednesday

Mostly sunny, with a high near 86.

Wednesday Night

Partly cloudy, with a low around 73.

Thursday

Mostly sunny, with a high near 90.