Heavy Rain Threatens the Mid-Atlantic on Sunday While Fire Weather Conditions Worsen in the Southwest

Heavy rain is bringing a flash flood risk to parts of the Mid-Atlantic on Sunday. This activity will diminish overnight. On Monday, the focus shifts into the Plains and Mississippi Valley where severe thunderstorms and heavy rains will be possible through Tuesday. Meanwhile, hot conditions and Critical Fire Weather looms over the Great Basin and Southwest U.S. through midweek. Read More >

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Fair

79°F

26°C

Humidity	74%
Wind Speed	NE 5 mph
Barometer	29.96 in
Dewpoint	70°F (21°C)
Visibility	10.00 mi
Heat Index	82°F (28°C)
Last update	15 Jun 5:50 pm CDT

More Information:

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

Extended Forecast for

Sherman TXSimilar City Names

Tonight
Low: 72 °F
Mostly Cloudy
then Slight
Chance
T-storms
Monday
High: 90 °F
Slight Chance
T-storms then
Mostly Sunny
Monday Night
Low: 75 °F
Mostly Clear
Tuesday
High: 92 °F
Sunny
Tuesday Night
Low: 76 °F
Mostly Clear
Wednesday
High: 92 °F
Mostly Sunny
Wednesday Night
Low: 74 °F
Chance
Showers then
Chance
T-storms
Juneteenth
High: 92 °F
Mostly Sunny
Thursday Night
Low: 75 °F
Mostly Clear

Detailed Forecast

Tonight

A 20 percent chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 72. Northeast wind around 5 mph becoming calm in the evening.

Monday

A 20 percent chance of showers and thunderstorms before 10am. Mostly cloudy, then gradually becoming sunny, with a high near 90. Heat index values as high as 102. Calm wind becoming west around 5 mph in the morning.

Monday Night

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

Tuesday

Sunny, with a high near 92. Heat index values as high as 105. South wind 10 to 15 mph, with gusts as high as 25 mph.

Tuesday Night

Mostly clear, with a low around 76. South wind around 15 mph, with gusts as high as 25 mph.

Wednesday

Mostly sunny, with a high near 92. South wind 10 to 15 mph, with gusts as high as 20 mph.

Wednesday Night

A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74. South wind 5 to 10 mph.

Juneteenth

Mostly sunny, with a high near 92. South southwest wind around 5 mph.