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

Tropical Storm Arthur and Heavy Rainfall in the South; Severe Weather in the Midwest

An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana tonight. Intense tornadoes, swaths of damaging gusts, and hail in excess of 2 inches in diameter possible. Tropical Storm Arthur will continue to produce strong winds across coastal Upper Texas and Louisiana tonight, as well as potentially life-threatening flooding across southern Louisiana into Mississippi. Read More >

Hazardous Weather Conditions

Current conditions at

Horseshoe Bay Resort Airpark (KDZB)

Lat: 30.53°NLon: 98.36°WElev: 1092ft.

Fair

75°F

24°C

Humidity 92%
Wind Speed S 3 mph
Barometer 29.65 in
Dewpoint 73°F (23°C)
Visibility 7.00 mi
Last update 18 Jun 5:15 am CDT
Extended Forecast for

Marble Falls TX

Heat Advisory June 18, 12:00pm until June 18, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: Sunny and hot, with a high near 99. Heat index values as high as 111. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 99 °F

    Hot

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly between 10pm and 1am. Increasing clouds, with a low around 79. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 79 °F

    Chance
    Showers

  • Juneteenth

    Juneteenth: A 20 percent chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 94. Heat index values as high as 105. East southeast wind 5 to 10 mph.

    High: 94 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Increasing clouds, with a low around 76. Southeast wind around 5 mph. Chance of precipitation is 60%.

    Low: 76 °F

    Chance
    T-storms then
    Showers
    Likely

  • Saturday

    Saturday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 92. South wind 5 to 10 mph. Chance of precipitation is 40%.

    High: 92 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of thunderstorms before 7pm. Partly cloudy, with a low around 76. South southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    Low: 76 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 95. South wind 5 to 10 mph, with gusts as high as 25 mph.

    High: 95 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 77. South wind around 10 mph, with gusts as high as 25 mph.

    Low: 77 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 95. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 95 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny and hot, with a high near 99. Heat index values as high as 111. South wind 5 to 10 mph, with gusts as high as 20 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly between 10pm and 1am. Increasing clouds, with a low around 79. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Juneteenth
A 20 percent chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 94. Heat index values as high as 105. East southeast wind 5 to 10 mph.
Friday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Increasing clouds, with a low around 76. Southeast wind around 5 mph. Chance of precipitation is 60%.
Saturday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 92. South wind 5 to 10 mph. Chance of precipitation is 40%.
Saturday Night
A chance of thunderstorms before 7pm. Partly cloudy, with a low around 76. South southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 95. South wind 5 to 10 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 77. South wind around 10 mph, with gusts as high as 25 mph.
Monday
Mostly sunny, with a high near 95. South wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 75.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
Tuesday Night
Mostly clear, with a low around 75.
Wednesday
Mostly sunny, with a high near 94.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Marble Falls TX
 30.58°N 98.27°W (Elev. 814 ft)
Last Update:
3:44 am CDT Jun 18, 2026
Forecast Valid:
5am CDT Jun 18, 2026-6pm CDT Jun 24, 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