Severe Weather for the Plains; Record Warmth for the Great Lakes and Northeast

Thunderstorms, associated with large hail, wind damage, a few tornadoes alongside the chance of excessive rainfall, are expected this afternoon and evening across parts of the Great Plains. For the eastern shores of Florida, dangerous surf and rip currents are expected with a persistent onshore flow through today. Record high temperatures from the Great Lakes to the Northeast are expected today. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

En Español

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Fair

91°F

33°C

Humidity	32%
Wind Speed	SE 13 mph
Barometer	29.94 in
Dewpoint	57°F (14°C)
Visibility	10.00 mi
Heat Index	90°F (32°C)
Last update	3 Oct 3:50 pm CDT

More Information:

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

Extended Forecast for

Denison TX

Tonight

Mostly Cloudy
then Chance
Showers
Low: 72 °F
Wednesday

Chance
Showers then
Showers
High: 84 °F
Wednesday
Night

Severe
Thunderstorms
Low: 67 °F
Thursday

Chance
T-storms
High: 80 °F
Thursday
Night

Mostly Clear
Low: 62 °F
Friday

Sunny
High: 77 °F
Friday
Night

Partly Cloudy
Low: 50 °F
Saturday

Mostly Sunny
High: 68 °F
Saturday
Night

Mostly Clear
Low: 47 °F

Detailed Forecast

Tonight

A slight chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 72. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

Wednesday

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 84. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday Night

Showers and thunderstorms. Some of the storms could be severe and produce heavy rainfall. Low around 67. Southeast wind around 10 mph becoming north northeast in the evening. Chance of precipitation is 100%. New rainfall amounts between 2 and 3 inches possible.

Thursday

A 50 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 80. East northeast wind 5 to 10 mph becoming north northwest in the morning.

Thursday Night

Mostly clear, with a low around 62. North wind 5 to 10 mph.

Friday

Sunny, with a high near 77. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.

Friday Night

Partly cloudy, with a low around 50. North wind around 15 mph, with gusts as high as 30 mph.

Saturday

Mostly sunny, with a high near 68. North wind 10 to 15 mph, with gusts as high as 25 mph.

Saturday Night

Mostly clear, with a low around 47. East northeast wind 5 to 10 mph.

Sunday

Sunny, with a high near 73.