Severe Weather Threat and Extreme Temperatures Impacting Portions of the Southern U.S

Strong to severe thunderstorms are expected to develop from central Texas into the Ohio Valley and Great Lakes Wednesday. Areas who will see the greatest chances for damaging hail and winds will be from north Texas to the Ozarks. Parts of south Texas and Florida will experience dangerous to extreme heat over the next several days. Dangerous heat stress may continue into early next week. Read More >

Hazardous Weather Conditions

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Heavy Rain

72°F

22°C

Humidity	88%
Wind Speed	NW 12 mph
Barometer	29.86 in
Dewpoint	68°F (20°C)
Visibility	1.50 mi
Last update	22 May 12:50 pm CDT

More Information:

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

Extended Forecast for

2 Miles S Sherman TX

Flood Watch May 22, 01:33pm until May 24, 01:00am

Tornado Watch May 22, 01:33pm until May 22, 08:00pm

Flash Flood Warning until May 22, 04:30pm

Severe T-storm Warning until May 22, 02:00pm

Click here for hazard details and duration

Flood Watch

Tornado Watch

Flash Flood Warning

...

Flood Watch May 22, 01:33pm until May 24, 01:00am
Tornado Watch May 22, 01:33pm until May 22, 08:00pm
Flash Flood Warning until May 22, 04:30pm
Severe T-storm Warning until May 22, 02:00pm
NOW: Multiple hazards in effect
Click HERE for Details
This Afternoon
High: 83 °F
Severe
Thunderstorms
Tonight
Low: 67 °F
Severe
Thunderstorms
Thursday
High: 83 °F
Slight Chance
T-storms then
Chance
T-storms
Thursday Night
Low: 69 °F
Chance
T-storms
Friday
High: 90 °F
Mostly Sunny
Friday Night
Low: 69 °F
Slight Chance
T-storms
Saturday
High: 89 °F
Mostly Sunny
then Chance
T-storms
Saturday Night
Low: 74 °F
Chance
T-storms

Detailed Forecast

This Afternoon

Showers and thunderstorms. Some of the storms could be severe. High near 83. Northeast wind around 5 mph becoming southeast. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

Tonight

Showers and thunderstorms likely, mainly before 10pm. Some of the storms could be severe. Mostly cloudy, with a low around 67. Southeast wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Thursday

A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 83. South wind 5 to 15 mph, with gusts as high as 20 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday Night

A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 69. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

Friday

Mostly sunny, with a high near 90. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

Friday Night

A 10 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 69. South wind around 5 mph.

Saturday

A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. South wind 5 to 15 mph, with gusts as high as 20 mph.

Saturday Night

A 30 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 74. South wind 10 to 15 mph, with gusts as high as 25 mph.

Sunday

Sunny, with a high near 93. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

Sunday Night

Clear, with a low around 67.

Memorial Day

Sunny, with a high near 86.

Monday Night

Mostly clear, with a low around 64.

Tuesday

Sunny, with a high near 84.