Midwest Heavy Rain and Severe Storms; Poor Air Quality and Elevated Fire Threats In the Northwest; Hurricane Lane Rolls Through Central Pacific

An area of low pressure is expected to lift up through the Midwest and intensify, while producing possible excessive rainfall and severe storms across the Mississippi Valley into the Ohio/Tennessee Valleys. Smoke from wildfires will continue to create poor air quality across parts of Western region. Hurricane Lane continues to move west through the Central Pacific, well east-southeast of Hawaii. Read More >

Hazardous Weather Conditions

Current conditions at

Sherman/Denison, Grayson County Airport (KGYI)

Lat: 33.72°NLon: 96.67°WElev: 748ft.

Fair

77°F

25°C

Humidity 93%
Wind Speed Calm
Barometer 29.90 in
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 20 Aug 4:15 am CDT
Extended Forecast for

Denison TX

  • Overnight

    Overnight: A 20 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 73. Southwest wind around 5 mph.

    Slight Chance
    T-storms

    Low: 73 °F

  • Monday

    Monday: A 10 percent chance of showers and thunderstorms before 7am.  Mostly sunny, with a high near 91. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Slight Chance
    T-storms then
    Mostly Sunny

    High: 91 °F

  • Monday
    Night

    Monday Night: Mostly clear, with a low around 68. North northwest wind 5 to 10 mph.

    Mostly Clear

    Low: 68 °F

  • Tuesday

    Tuesday: Sunny, with a high near 92. North wind 5 to 10 mph.

    Sunny

    High: 92 °F

  • Tuesday
    Night

    Tuesday Night: Mostly clear, with a low around 67. East northeast wind around 5 mph.

    Mostly Clear

    Low: 67 °F

  • Wednesday

    Wednesday: Mostly sunny, with a high near 90. East northeast wind around 5 mph.

    Mostly Sunny

    High: 90 °F

  • Wednesday
    Night

    Wednesday Night: Partly cloudy, with a low around 68. East wind around 5 mph.

    Partly Cloudy

    Low: 68 °F

  • Thursday

    Thursday: Mostly sunny, with a high near 92. South southeast wind 5 to 10 mph.

    Mostly Sunny

    High: 92 °F

  • Thursday
    Night

    Thursday Night: Partly cloudy, with a low around 73. South southeast wind around 10 mph.

    Partly Cloudy

    Low: 73 °F

Detailed Forecast

Overnight
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Southwest wind around 5 mph.
Monday
A 10 percent chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 91. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 68. North northwest wind 5 to 10 mph.
Tuesday
Sunny, with a high near 92. North wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 67. East northeast wind around 5 mph.
Wednesday
Mostly sunny, with a high near 90. East northeast wind around 5 mph.
Wednesday Night
Partly cloudy, with a low around 68. East wind around 5 mph.
Thursday
Mostly sunny, with a high near 92. South southeast wind 5 to 10 mph.
Thursday Night
Partly cloudy, with a low around 73. South southeast wind around 10 mph.
Friday
Mostly sunny, with a high near 96.
Friday Night
Mostly clear, with a low around 75.
Saturday
Sunny, with a high near 97.
Saturday Night
Mostly clear, with a low around 75.
Sunday
Mostly sunny, with a high near 98.
Click Map For Forecast
Point Forecast:
Denison TX
 33.75°N 96.55°W (Elev. 758 ft)
3:32 am CDT Aug 20, 2018
4am CDT Aug 20, 2018-6pm CDT Aug 26, 2018
 
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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