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.

Fog/Mist

73°F

23°C

Humidity	96%
Wind Speed	SW 5 mph
Barometer	30.05 in
Dewpoint	72°F (22°C)
Visibility	6.00 mi
Last update	14 Jul 4:35 am CDT

More Information:

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

Extended Forecast for

2 Miles W Collinsville TX

Overnight
Low: 71 °F
Slight Chance
T-storms
Monday
High: 90 °F
Chance
Showers then
Chance
T-storms
Monday Night
Low: 74 °F
Slight Chance
T-storms then
Partly Cloudy
Tuesday
High: 93 °F
Mostly Sunny
then Chance
T-storms
Tuesday Night
Low: 75 °F
Partly Cloudy
Wednesday
High: 94 °F
Sunny
Wednesday Night
Low: 75 °F
Mostly Clear
Thursday
High: 96 °F
Sunny
Thursday Night
Low: 74 °F
Mostly Clear

Detailed Forecast

Overnight

A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Calm wind.

Monday

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. Calm wind becoming south around 5 mph in the afternoon.

Monday Night

A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 74. South wind around 5 mph.

Tuesday

A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. Heat index values as high as 105. South southwest wind 5 to 10 mph.

Tuesday Night

Partly cloudy, with a low around 75. South wind around 5 mph.

Wednesday

Sunny, with a high near 94. South wind 5 to 10 mph, with gusts as high as 20 mph.

Wednesday Night

Mostly clear, with a low around 75. South wind 5 to 10 mph.

Thursday

Sunny, with a high near 96. South wind 5 to 10 mph.

Thursday Night

Mostly clear, with a low around 74. South wind around 5 mph becoming calm in the evening.

Friday

Mostly sunny, with a high near 96.