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Severe thunderstorms possible from the central Plains to the upper Midwest

Severe thunderstorms containing damaging winds, large hail, heavy rainfall, and a few isolated tornadoes will be possible this afternoon into tonight from the central Plains to the upper Midwest. The threat is expected to shift east into the Great Lakes region by Friday. In addition, heavy rainfall could cause localized flooding concerns. Read More >

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Partly Cloudy

89°F

32°C

Humidity 52%
Wind Speed S 15 G 22 mph
Barometer 29.88 in
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 28 Jun 5:15 pm CDT
Extended Forecast for

Grayson County Airport TX

  • Tonight

    Tonight: Partly cloudy, with a low around 72. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Partly Cloudy

    Low: 72 °F

  • Thursday

    Thursday: Mostly sunny, with a high near 92. Heat index values as high as 100. South wind 10 to 15 mph, with gusts as high as 25 mph.

    Mostly Sunny

    High: 92 °F

  • Thursday
    Night

    Thursday Night: Partly cloudy, with a low around 76. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Partly Cloudy

    Low: 76 °F

  • Friday

    Friday: Mostly sunny, with a high near 94. Heat index values as high as 103. South wind 15 to 20 mph, with gusts as high as 30 mph.

    Mostly Sunny

    High: 94 °F

  • Friday
    Night

    Friday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 73. South wind 5 to 15 mph, with gusts as high as 25 mph.

    Chance
    T-storms

    Low: 73 °F

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms, mainly before 1pm.  Mostly cloudy, with a high near 89. South southwest wind around 5 mph.

    Chance
    T-storms

    High: 89 °F

  • Saturday
    Night

    Saturday Night: A 30 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 73. South southeast wind 5 to 10 mph.

    Chance
    T-storms

    Low: 73 °F

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms.  Partly sunny, with a high near 91. South wind 5 to 10 mph.

    Chance
    T-storms

    High: 91 °F

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 75. South wind around 10 mph.

    Partly Cloudy

    Low: 75 °F

Detailed Forecast

Tonight
Partly cloudy, with a low around 72. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday
Mostly sunny, with a high near 92. Heat index values as high as 100. South wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday Night
Partly cloudy, with a low around 76. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Friday
Mostly sunny, with a high near 94. Heat index values as high as 103. South wind 15 to 20 mph, with gusts as high as 30 mph.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73. South wind 5 to 15 mph, with gusts as high as 25 mph.
Saturday
A 50 percent chance of showers and thunderstorms, mainly before 1pm. Mostly cloudy, with a high near 89. South southwest wind around 5 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73. South southeast wind 5 to 10 mph.
Sunday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 91. South wind 5 to 10 mph.
Sunday Night
Partly cloudy, with a low around 75. South wind around 10 mph.
Monday
Mostly sunny, with a high near 93.
Monday Night
Partly cloudy, with a low around 75.
Independence Day
Mostly sunny, with a high near 92.
Tuesday Night
Partly cloudy, with a low around 76.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
Click Map For Forecast
Point Forecast:
Grayson County Airport TX
 33.71°N 96.66°W (Elev. 797 ft)
3:23 pm CDT Jun 28, 2017
5pm CDT Jun 28, 2017-6pm CDT Jul 5, 2017
 
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