National Weather Service Forecast for: Austin TX
Issued by: National Weather Service Austin/San Antonio, TX
Updated: 8:46 pm CDT Jun 18, 2026
 
Tonight

Tonight: Increasing clouds, with a low around 79. South southeast wind 5 to 10 mph.
Increasing
Clouds
 Juneteenth

Juneteenth: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 94. Heat index values as high as 106. East northeast wind around 5 mph.
Chance
T-storms
 Friday
Night
Friday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 78. East southeast wind around 5 mph becoming calm after midnight.
Chance
T-storms
 Saturday

Saturday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 93. Heat index values as high as 106. Calm wind becoming south around 5 mph in the morning.
Chance
T-storms
 Saturday
Night
Saturday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 78. South wind around 5 mph.
Slight Chance
T-storms
 Sunday

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

Monday: Mostly sunny, with a high near 97. South wind around 10 mph, with gusts as high as 20 mph.
Mostly Sunny
 Monday
Night
Monday Night: Mostly clear, with a low around 78. South southeast wind 5 to 10 mph, with gusts as high as 25 mph.
Mostly Clear
Lo 79 °F Hi 94 °F Lo 78 °F Hi 93 °F Lo 78 °F Hi 95 °F Lo 78 °F Hi 97 °F Lo 78 °F

 

Tonight
 
 Increasing clouds, with a low around 79. South southeast wind 5 to 10 mph.
Juneteenth
 
 A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 94. Heat index values as high as 106. East northeast wind around 5 mph.
Friday Night
 
 A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 78. East southeast wind around 5 mph becoming calm after midnight.
Saturday
 
 A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 93. Heat index values as high as 106. Calm wind becoming south around 5 mph in the morning.
Saturday Night
 
 A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 78. South wind around 5 mph.
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 78. South wind around 10 mph, with gusts as high as 25 mph.
Monday
 
 Mostly sunny, with a high near 97. South wind around 10 mph, with gusts as high as 20 mph.
Monday Night
 
 Mostly clear, with a low around 78. South southeast wind 5 to 10 mph, with gusts as high as 25 mph.
Tuesday
 
 Partly sunny, with a high near 96.
Tuesday Night
 
 Mostly clear, with a low around 78.
Wednesday
 
 Mostly sunny, with a high near 98.
Wednesday Night
 
 Mostly clear, with a low around 76.
Thursday
 
 Mostly sunny, with a high near 97.

 

Forecast from NOAA-NWS for Austin TX.