National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

Vernon, Wilbarger County Airport (KF05)

Lat: 34.23°NLon: 99.28°WElev: 1266ft.

Fair

77°F

25°C

Humidity 51%
Wind Speed Calm
Barometer 29.90 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 20 Sep 6:15 am CDT
Extended Forecast for

Knox City TX

  • Today

    Today: A chance of showers, with thunderstorms also possible after 4pm. Partly sunny and hot, with a high near 99. Southwest wind 8 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 99 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 1am, then a slight chance of showers. Partly cloudy, with a low around 69. South wind 5 to 9 mph becoming light and variable. Chance of precipitation is 40%.

    Low: 69 °F

    Chance
    T-storms then
    Chance
    Showers

  • Monday

    Monday: A slight chance of showers, with thunderstorms also possible after 4pm. Increasing clouds, with a high near 90. Northeast wind 6 to 9 mph. Chance of precipitation is 20%.

    High: 90 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 66. Northeast wind 7 to 11 mph. Chance of precipitation is 40%.

    Low: 66 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Partly sunny, with a high near 86. East northeast wind 9 to 11 mph. Chance of precipitation is 30%.

    High: 86 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 64.

    Low: 64 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers before 1pm. Partly sunny, with a high near 87.

    High: 87 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 66.

    Low: 66 °F

    Mostly Cloudy

  • Thursday

    Thursday: A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 88. Chance of precipitation is 20%.

    High: 88 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

Detailed Forecast

Today
A chance of showers, with thunderstorms also possible after 4pm. Partly sunny and hot, with a high near 99. Southwest wind 8 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Tonight
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Partly cloudy, with a low around 69. South wind 5 to 9 mph becoming light and variable. Chance of precipitation is 40%.
Monday
A slight chance of showers, with thunderstorms also possible after 4pm. Increasing clouds, with a high near 90. Northeast wind 6 to 9 mph. Chance of precipitation is 20%.
Monday Night
A chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 66. Northeast wind 7 to 11 mph. Chance of precipitation is 40%.
Tuesday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Partly sunny, with a high near 86. East northeast wind 9 to 11 mph. Chance of precipitation is 30%.
Tuesday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 64.
Wednesday
A 30 percent chance of showers before 1pm. Partly sunny, with a high near 87.
Wednesday Night
Mostly cloudy, with a low around 66.
Thursday
A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 88. Chance of precipitation is 20%.
Thursday Night
A 40 percent chance of showers after 1am. Partly cloudy, with a low around 67.
Friday
A 40 percent chance of showers. Partly sunny, with a high near 86.
Friday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 66.
Saturday
A 20 percent chance of showers. Partly sunny, with a high near 87.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Knox City TX
 33.44°N 99.81°W
Last Update:
4:07 am CDT Sep 20, 2026
Forecast Valid:
6am CDT Sep 20, 2026-6pm CDT Sep 26, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation