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

Austin City Austin Camp Mabry (KATT)

Lat: 30.32°NLon: 97.76°WElev: 656ft.

Fair

80°F

27°C

Humidity 87%
Wind Speed SE 7 mph
Barometer 29.64 in (1002.2 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 18 Jun 12:51 am CDT
Extended Forecast for

Austin TX

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

  • Overnight

    Overnight: Mostly clear, with a low around 79. South wind around 5 mph.

    Low: 79 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny and hot, with a high near 99. Heat index values as high as 116. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 99 °F

    Hot

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 81. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 81 °F

    Increasing
    Clouds

  • Juneteenth

    Juneteenth: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 95. Heat index values as high as 110. Southeast wind 5 to 10 mph.

    High: 95 °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 a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 79. Southeast wind 5 to 10 mph. Chance of precipitation is 50%.

    Low: 79 °F

    Chance
    T-storms

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 93. South wind 5 to 10 mph.

    High: 93 °F

    Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly cloudy, with a low around 78. South wind around 5 mph. Chance of precipitation is 20%.

    Low: 78 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 96. South wind 5 to 10 mph, with gusts as high as 25 mph.

    High: 96 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 78. South wind around 10 mph, with gusts as high as 25 mph.

    Low: 78 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 79. South wind around 5 mph.
Thursday
Mostly cloudy, then gradually becoming sunny and hot, with a high near 99. Heat index values as high as 116. South wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Increasing clouds, with a low around 81. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Juneteenth
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 95. Heat index values as high as 110. 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 a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 79. Southeast wind 5 to 10 mph. Chance of precipitation is 50%.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 93. South wind 5 to 10 mph.
Saturday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly cloudy, with a low around 78. South wind around 5 mph. Chance of precipitation is 20%.
Sunday
Mostly sunny, with a high near 96. South wind 5 to 10 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 78. South wind around 10 mph, with gusts as high as 25 mph.
Monday
Mostly sunny, with a high near 96.
Monday Night
Mostly clear, with a low around 77.
Tuesday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 95.
Tuesday Night
Mostly clear, with a low around 76.
Wednesday
Mostly sunny, with a high near 95.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Austin TX
 30.27°N 97.74°W (Elev. 509 ft)
Last Update:
1:30 am CDT Jun 18, 2026
Forecast Valid:
1am 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