Flash Flood Risk in the Mid-Atlantic; Storms in the High Plains; Critical Fire Weather Threats in the West

Heavy rain and thunderstorms will pose a flash flood risk for the Mid-Atlantic. Severe thunderstorms are possible through Friday from the northern and central Plains to the Upper Midwest. Elevated and critical fire weather conditions with isolated dry thunderstorm potential across a large part of the West. Above average temperatures are expected in the Southern Plains and Northeast. Read More >

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Fair

101°F

38°C

Humidity 34%
Wind Speed SW 8 mph
Barometer 29.91 in (1011.6 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index107°F (42°C)
Last update 12 Aug 3:56 pm CDT
Extended Forecast for

2 Miles SSW Lockhart TX

Heat Advisory until August 12, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory until August 12, 07:00pm

    NOW until
    7:00pm Wed

    Heat Advisory

  • This
    Afternoon

    This Afternoon: Sunny and hot, with a high near 101. Heat index values as high as 105. South wind around 10 mph.

    Hot

    High: 101 °F

  • Tonight

    Tonight: Increasing clouds, with a low around 76. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Increasing
    Clouds

    Low: 76 °F

  • Thursday

    Thursday: Partly sunny, then gradually becoming sunny and hot, with a high near 101. Heat index values as high as 104. South wind 5 to 10 mph.

    Hot

    High: 101 °F

  • Thursday
    Night

    Thursday Night: Mostly clear, with a low around 76. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.

    Mostly Clear

    Low: 76 °F

  • Friday

    Friday: Sunny and hot, with a high near 103. South southwest wind 5 to 10 mph.

    Hot

    High: 103 °F

  • Friday
    Night

    Friday Night: Mostly clear, with a low around 75. South wind 5 to 10 mph.

    Mostly Clear

    Low: 75 °F

  • Saturday

    Saturday: Sunny and hot, with a high near 102. South southwest wind 5 to 10 mph.

    Hot

    High: 102 °F

  • Saturday
    Night

    Saturday Night: Mostly clear, with a low around 75. South wind around 10 mph.

    Mostly Clear

    Low: 75 °F

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 101. Heat index values as high as 105. South wind around 10 mph.
Tonight
Increasing clouds, with a low around 76. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday
Partly sunny, then gradually becoming sunny and hot, with a high near 101. Heat index values as high as 104. South wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 76. South southeast wind 5 to 15 mph, with gusts as high as 20 mph.
Friday
Sunny and hot, with a high near 103. South southwest wind 5 to 10 mph.
Friday Night
Mostly clear, with a low around 75. South wind 5 to 10 mph.
Saturday
Sunny and hot, with a high near 102. South southwest wind 5 to 10 mph.
Saturday Night
Mostly clear, with a low around 75. South wind around 10 mph.
Sunday
Mostly sunny and hot, with a high near 103. South southwest wind around 5 mph.
Sunday Night
Partly cloudy, with a low around 76.
Monday
A 30 percent chance of showers and thunderstorms. Sunny and hot, with a high near 101.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 98.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 74.
Wednesday
A slight chance of showers and thunderstorms. Sunny, with a high near 98.
Click Map For Forecast
Point Forecast:
2 Miles SSW Lockhart TX
 29.86°N 97.7°W (Elev. 545 ft)
1:57 pm CDT Aug 12, 2020
4pm CDT Aug 12, 2020-6pm CDT Aug 19, 2020
 
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Additional Resources

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Hourly Weather Forecast

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