Areas of Severe Thunderstorms and Heavy Rain Possible through the Weekend

There will be daily chances for scattered thunderstorms across portions of the Central and Eastern U.S. through the weekend, with severe thunderstorms possible in the northern Plains and Upper Midwest. Potential severe storm hazards may include large hail, damaging winds, and a few tornadoes. Storms could also produce heavy rain that may lead to isolated instances of flash flooding. Read More >

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Fair

82°F

28°C

Humidity	66%
Wind Speed	S 12 mph
Barometer	30.02 in
Dewpoint	70°F (21°C)
Visibility	9.00 mi
Heat Index	86°F (30°C)
Last update	28 Jun 11:55 pm CDT

More Information:

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

Extended Forecast for

Denison TX

Overnight
Low: 77 °F
Mostly Clear
Sunday
High: 95 °F
Sunny
Sunday Night
Low: 77 °F
Mostly Clear
Monday
High: 94 °F
Chance
T-storms
Monday Night
Low: 73 °F
Chance
T-storms
Tuesday
High: 91 °F
Chance
T-storms
Tuesday Night
Low: 74 °F
Partly Cloudy
Wednesday
High: 95 °F
Chance
T-storms
Wednesday Night
Low: 75 °F
Partly Cloudy

Detailed Forecast

Overnight

Mostly clear, with a low around 77. South wind around 5 mph.

Sunday

Sunny, with a high near 95. Heat index values as high as 101. South wind 5 to 10 mph.

Sunday Night

Mostly clear, with a low around 77. South wind around 5 mph.

Monday

A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 94. Heat index values as high as 103. South southwest wind around 5 mph.

Monday Night

A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 73. South wind around 5 mph becoming calm in the evening.

Tuesday

A 30 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 91. Calm wind becoming west around 5 mph in the afternoon.

Tuesday Night

Partly cloudy, with a low around 74. South southwest wind around 5 mph becoming calm.

Wednesday

A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 95. Calm wind becoming southwest around 5 mph in the morning.

Wednesday Night

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

Thursday

A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.

Thursday Night

Partly cloudy, with a low around 74.

Independence Day

A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.

Friday Night

Partly cloudy, with a low around 76.

Saturday

Mostly sunny, with a high near 94.