Heavy Rain and Strong-to-Severe Thunderstorms from the Central Miss. Valley to the Mid-Atlantic

A slow-moving weather system in the eastern U.S. will focus showers and thunderstorms from the mid-Mississippi River Valley to the Mid-Atlantic on Thursday. Abundant moisture will allow occasionally heavy rainfall. Flash Flood Watches are in effect in these areas. Severe thunderstorms with damaging wind gusts and large hail will also be possible in this same area. Read More >

Hazardous Weather Conditions

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Fair

78°F

26°C

Humidity 94%
Wind Speed SW 7 mph
Barometer 29.99 in
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 28 Jul 7:15 am CDT
Extended Forecast for

Denison TX

  • Today

    Today: A 20 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 93. Heat index values as high as 100. South wind 5 to 10 mph.

    Slight Chance
    T-storms

    High: 93 °F

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 75. South wind 5 to 10 mph.

    Mostly Clear
    then Slight
    Chance
    T-storms

    Low: 75 °F

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms.  Partly sunny, with a high near 94. Heat index values as high as 100. South wind 5 to 10 mph.

    Slight Chance
    T-storms

    High: 94 °F

  • Friday
    Night

    Friday Night: A 20 percent chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 76. South southeast wind around 5 mph.

    Mostly Cloudy
    then Slight
    Chance
    T-storms

    Low: 76 °F

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms before 1pm.  Mostly sunny, with a high near 96. South southwest wind 5 to 10 mph.

    Slight Chance
    T-storms

    High: 96 °F

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 77. South southeast wind 5 to 10 mph.

    Partly Cloudy

    Low: 77 °F

  • Sunday

    Sunday: Mostly sunny, with a high near 96. South wind 5 to 10 mph.

    Mostly Sunny

    High: 96 °F

  • Sunday
    Night

    Sunday Night: Mostly clear, with a low around 78. South southeast wind 5 to 10 mph.

    Mostly Clear

    Low: 78 °F

  • Monday

    Monday: Sunny, with a high near 97. South wind around 10 mph.

    Sunny

    High: 97 °F

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93. Heat index values as high as 100. South wind 5 to 10 mph.
Tonight
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 75. South wind 5 to 10 mph.
Friday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 94. Heat index values as high as 100. South wind 5 to 10 mph.
Friday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 76. South southeast wind around 5 mph.
Saturday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 96. South southwest wind 5 to 10 mph.
Saturday Night
Partly cloudy, with a low around 77. South southeast wind 5 to 10 mph.
Sunday
Mostly sunny, with a high near 96. South wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 78. South southeast wind 5 to 10 mph.
Monday
Sunny, with a high near 97. South wind around 10 mph.
Monday Night
Mostly clear, with a low around 78.
Tuesday
Sunny, with a high near 98.
Tuesday Night
Mostly clear, with a low around 77.
Wednesday
Sunny, with a high near 98.
Click Map For Forecast
Point Forecast:
Denison TX
 33.75°N 96.57°W (Elev. 748 ft)
3:49 am CDT Jul 28, 2016
7am CDT Jul 28, 2016-6pm CDT Aug 3, 2016
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database