Heavy to Excessive Rainfall and Flooding Threats in the Central and Eastern U.S.; Heat and Fire Weather Concerns in the West

Thunderstorms producing excessive rainfall and potential flooding concerns will continue through tonight from the Southern Plains to the East Coast. Areas of greatest concern for flooding are over central Texas and the Mid-Atlantic. Heat will continue to build across the West through Tuesday. Heat Advisories and Extreme Heat Warnings are in effect. Fire Weather concerns continue through Monday. Read More >

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Overcast

80°F

27°C

Humidity	80%
Wind Speed	S 7 mph
Barometer	30.02 in
Dewpoint	73°F (23°C)
Visibility	7.00 mi
Heat Index	84°F (29°C)
Last update	13 Jul 10:35 pm CDT

More Information:

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

Extended Forecast for

2 Miles WNW Denison TX

Tonight
Low: 72 °F
Chance
T-storms
Monday
High: 86 °F
Chance
T-storms
Monday Night
Low: 72 °F
Slight Chance
T-storms
Tuesday
High: 90 °F
Chance
T-storms
Tuesday Night
Low: 74 °F
Mostly Clear
Wednesday
High: 93 °F
Sunny
Wednesday Night
Low: 76 °F
Mostly Clear
Thursday
High: 94 °F
Sunny
Thursday Night
Low: 75 °F
Mostly Clear

Detailed Forecast

Tonight

A slight chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 72. South southeast wind around 5 mph becoming calm. Chance of precipitation is 30%.

Monday

A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. South wind around 5 mph becoming west northwest in the afternoon.

Monday Night

A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72. South southeast wind around 5 mph.

Tuesday

A 30 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 90. Heat index values as high as 99. South southwest wind 5 to 10 mph.

Tuesday Night

Mostly clear, with a low around 74. South wind 5 to 10 mph.

Wednesday

Sunny, with a high near 93. South wind 5 to 10 mph, with gusts as high as 20 mph.

Wednesday Night

Mostly clear, with a low around 76. South wind 5 to 10 mph.

Thursday

Sunny, with a high near 94. South wind 5 to 10 mph.

Thursday Night

Mostly clear, with a low around 75. South wind around 5 mph.

Friday

Sunny, with a high near 95.