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Heavy rain and flash flooding possible in portions of the Southwest this weekend

An upper-level low in the Southwest U.S. will act as a trigger for thunderstorms this weekend. The area of greatest concern is in New Mexico, southeast Utah and portions of southern Colorado. Storms will be slow moving and could bring several rounds of rain to the same areas. Rainfall amounts may exceed 3 inches in localized areas. Flash Flood Watches are in effect. Read More >

Hazardous Weather Conditions

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Fair

76°F

24°C

Humidity 90%
Wind Speed S 3 mph
Barometer 29.98 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index76°F (24°C)
Last update 19 Aug 4:15 am CDT
Extended Forecast for

Denison TX

  • Today

    Today: Isolated showers and thunderstorms after 1pm.  Sunny, with a high near 96. Heat index values as high as 104. South wind around 5 mph becoming west southwest in the afternoon.  Chance of precipitation is 10%.

    Sunny then
    Isolated
    T-storms

    High: 96 °F

  • Tonight

    Tonight: Mostly clear, with a low around 75. South southeast wind around 5 mph.

    Mostly Clear

    Low: 75 °F

  • Sunday

    Sunday: Mostly sunny, with a high near 95. Heat index values as high as 102. South wind 5 to 10 mph.

    Mostly Sunny

    High: 95 °F

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 76. Southeast wind 5 to 10 mph.

    Partly Cloudy

    Low: 76 °F

  • Monday

    Monday: Mostly sunny, with a high near 93. South southeast wind 5 to 10 mph.

    Mostly Sunny

    High: 93 °F

  • Monday
    Night

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

    Partly Cloudy

    Low: 75 °F

  • Tuesday

    Tuesday: Sunny, with a high near 95. South wind 5 to 10 mph.

    Sunny

    High: 95 °F

  • Tuesday
    Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 74. South southeast wind around 5 mph becoming west after midnight.

    Chance
    T-storms

    Low: 74 °F

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms.  Partly sunny, with a high near 88. North wind around 5 mph.

    Chance
    T-storms

    High: 88 °F

Detailed Forecast

Today
Isolated showers and thunderstorms after 1pm. Sunny, with a high near 96. Heat index values as high as 104. South wind around 5 mph becoming west southwest in the afternoon. Chance of precipitation is 10%.
Tonight
Mostly clear, with a low around 75. South southeast wind around 5 mph.
Sunday
Mostly sunny, with a high near 95. Heat index values as high as 102. South wind 5 to 10 mph.
Sunday Night
Partly cloudy, with a low around 76. Southeast wind 5 to 10 mph.
Monday
Mostly sunny, with a high near 93. South southeast wind 5 to 10 mph.
Monday Night
Partly cloudy, with a low around 75. South southeast wind around 10 mph.
Tuesday
Sunny, with a high near 95. South wind 5 to 10 mph.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74. South southeast wind around 5 mph becoming west after midnight.
Wednesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 88. North wind around 5 mph.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.
Thursday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.
Thursday Night
Mostly cloudy, with a low around 70.
Friday
Partly sunny, with a high near 87.
Click Map For Forecast
Point Forecast:
Denison TX
 33.75°N 96.57°W (Elev. 748 ft)
3:33 am CDT Aug 19, 2017
4am CDT Aug 19, 2017-6pm CDT Aug 25, 2017
 
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