Flooding Threat Along the Gulf Coast, Southern Rockies and High Plains; Cooler Weather in the Central and Eastern U.S.

Strong thunderstorms may bring excessive rainfall and flooding over parts of the northern Gulf Coast today and over parts of the southern Rockies into the High Plains today through the weekend. A refreshingly cool and dry air mass will continue to produce below average temperatures across the central and eastern U.S. through the weekend. Read More >

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Overcast

71°F

22°C

Humidity	97%
Wind Speed	Calm
Barometer	30.04 in
Dewpoint	71°F (22°C)
Visibility	10.00 mi
Last update	31 Aug 4:15 am CDT

More Information:

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

Extended Forecast for

Denison TX

Overnight
Low: 70 °F
Chance
T-storms
Sunday
High: 81 °F
Chance
T-storms
Sunday Night
Low: 70 °F
Chance
T-storms
Labor Day
High: 84 °F
Slight Chance
Showers then
Slight Chance
T-storms
Monday Night
Low: 67 °F
Partly Cloudy
Tuesday
High: 85 °F
Mostly Sunny
Tuesday Night
Low: 64 °F
Mostly Clear
Wednesday
High: 86 °F
Sunny
Wednesday Night
Low: 66 °F
Partly Cloudy

Detailed Forecast

Overnight

A 50 percent chance of showers and thunderstorms. Cloudy, with a low around 70. Calm wind.

Sunday

A 50 percent chance of showers and thunderstorms. Cloudy, with a high near 81. East wind around 5 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Sunday Night

A 30 percent chance of showers and thunderstorms, mainly before 10pm. Mostly cloudy, with a low around 70. East wind around 5 mph becoming calm in the evening.

Labor Day

A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 84. Calm wind becoming east northeast around 5 mph. Chance of precipitation is 20%.

Monday Night

Partly cloudy, with a low around 67. Calm wind.

Tuesday

Mostly sunny, with a high near 85. Calm wind becoming north northwest around 5 mph in the morning.

Tuesday Night

Mostly clear, with a low around 64. North wind around 5 mph becoming calm in the evening.

Wednesday

Sunny, with a high near 86. North northwest wind around 5 mph.

Wednesday Night

Partly cloudy, with a low around 66. Calm wind becoming west around 5 mph.

Thursday

A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 83. Chance of precipitation is 20%.