Severe Thunderstorms in the Southern High Plains Saturday; Coastal Flooding in the East

Scattered severe thunderstorms are possible Saturday afternoon into early evening across parts of the southern High Plains. Damaging winds, large hail, isolated tornadoes, and heavy to excessive rainfall are possible. Along the Atlantic Coast, widespread minor to isolated moderate coastal flooding at high tides is forecast through the weekend. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Fair

88°F

31°C

Humidity	59%
Wind Speed	S 12 mph
Barometer	29.94 in
Dewpoint	72°F (22°C)
Visibility	10.00 mi
Heat Index	95°F (35°C)
Last update	21 Sep 9:50 am CDT

More Information:

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

Extended Forecast for

4 Miles SW Collinsville TX

Today
High: 97 °F
Sunny
Tonight
Low: 74 °F
Mostly Clear
Sunday
High: 93 °F
Mostly Sunny
Sunday Night
Low: 64 °F
Chance
Showers
Monday
High: 79 °F
Chance
Showers
Monday Night
Low: 62 °F
Partly Cloudy
Tuesday
High: 83 °F
Slight Chance
Showers
Tuesday Night
Low: 62 °F
Slight Chance
T-storms
Wednesday
High: 80 °F
Slight Chance
T-storms

Detailed Forecast

Today

Sunny, with a high near 97. Heat index values as high as 104. South wind 5 to 10 mph.

Tonight

Mostly clear, with a low around 74. South wind around 5 mph.

Sunday

Mostly sunny, with a high near 93. South southwest wind 5 to 10 mph.

Sunday Night

A chance of showers, with thunderstorms also possible after 4am. Mostly cloudy, with a low around 64. South wind 5 to 10 mph becoming north in the evening. Chance of precipitation is 30%.

Monday

A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Mostly cloudy, with a high near 79. North northwest wind 5 to 10 mph. Chance of precipitation is 30%.

Monday Night

Partly cloudy, with a low around 62. North northwest wind around 5 mph becoming calm.

Tuesday

A 20 percent chance of showers before 1pm. Partly sunny, with a high near 83. East northeast wind around 5 mph.

Tuesday Night

A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Northeast wind around 5 mph.

Wednesday

A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 80. North northeast wind around 5 mph.

Wednesday Night

Partly cloudy, with a low around 62.

Thursday

Mostly sunny, with a high near 84.