Severe Thunderstorms and Excessive Rainfall in the Central U.S.; Heat Building in the Western U.S.

A cold front pressing east across the central U.S. will be the focus for areas of strong to severe thunderstorms and excessive rainfall through this weekend. Strong to severe thunderstorms my bring damaging winds, hail, and a few tornadoes while excessive rainfall may lead to areas of flooding. Heat will build across the western U.S. with heat-related watches, warnings, and advisories issued. Read More >

Hazardous Weather Conditions

Flood Watch until July 13, 07:00 PM CDT

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72° N Lon: 96.67° W Elev: 748 ft.

Partly Cloudy

79°F

26°C

Humidity	74%
Wind Speed	Vrbl 5 mph
Barometer	30.04 in
Dewpoint	70°F (21°C)
Visibility	10.00 mi
Heat Index	82°F (28°C)
Last update	13 Jul 10:50 am CDT

More Information:

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

Detailed forecast for

Grayson County

Today

Mostly cloudy this morning, then becoming partly sunny. A 50 percent chance of showers and thunderstorms. Heavy rainfall possible. Highs in the mid 80s. Southwest winds around 5 mph.

Tonight

Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers. A chance of thunderstorms in the evening, then a slight chance of thunderstorms after midnight. Humid with lows in the lower 70s. South winds around 5 mph. Chance of rain 40 percent.

Monday

Partly sunny with a 40 percent chance of showers and thunderstorms. Humid with highs in the upper 80s. Southwest winds around 5 mph.

Monday Night

Partly cloudy. Humid with lows in the lower 70s. South winds around 5 mph.

Tuesday

Mostly sunny. A 20 percent chance of showers and thunderstorms in the afternoon. Humid with highs in the lower 90s. South winds 5 to 10 mph.

Tuesday Night

Partly cloudy. Lows in the mid 70s.

Wednesday

Mostly sunny. A 20 percent chance of showers and thunderstorms in the afternoon. Highs in the lower 90s.

Wednesday Night

Partly cloudy. Lows in the mid 70s.