Risks of Severe Thunderstorms and Excessive Rainfall; Fire Weather Concerns and Record Warmth

Severe thunderstorms and flash flooding risks increase across the center of the nation today. Meanwhile, ongoing thunderstorms and flash flooding will linger along the Gulf Coast states through the evening. The Great Basin and Intermountain West, warm temperatures and dry fuels with dry lightning may enhance fire weather potential. In addition, across interior Alaska, Red Flag Warning are posted. Read More >

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Fair

83°F

28°C

Humidity 74%
Wind Speed S 9 mph
Barometer 29.88 in (1010.8 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 20 Jun 7:56 pm CDT
Extended Forecast for

3 Miles WSW Kyle TX

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 10pm.  Partly cloudy, with a low around 76. South wind around 5 mph.

    Low: 76 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of showers before 1pm, then a slight chance of showers and thunderstorms between 1pm and 4pm, then a slight chance of showers after 4pm.  Partly sunny, with a high near 91. Heat index values as high as 103. South wind 5 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 20%.

    High: 91 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 78. South wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 78 °F

    Increasing
    Clouds

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 94. Heat index values as high as 105. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 94 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Partly cloudy, with a low around 78. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 78 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 95. South wind around 10 mph, with gusts as high as 20 mph.

    High: 95 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 76. South wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 76 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 96. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 96 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 73. South wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 73 °F

    Mostly Clear

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 76. South wind around 5 mph.
Sunday
A slight chance of showers before 1pm, then a slight chance of showers and thunderstorms between 1pm and 4pm, then a slight chance of showers after 4pm. Partly sunny, with a high near 91. Heat index values as high as 103. South wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Sunday Night
Increasing clouds, with a low around 78. South wind 10 to 15 mph, with gusts as high as 25 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 94. Heat index values as high as 105. South wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
Partly cloudy, with a low around 78. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday
Mostly sunny, with a high near 95. South wind around 10 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 76. South wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday
Mostly sunny, with a high near 96. South wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 73. South wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday
Mostly sunny, with a high near 95.
Thursday Night
Mostly clear, with a low around 75.
Friday
Mostly sunny, with a high near 96.
Friday Night
Mostly clear, with a low around 76.
Saturday
Mostly sunny, with a high near 97.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Kyle TX
 29.97°N 97.92°W (Elev. 650 ft)
7:42 pm CDT Jun 20, 2026
8pm CDT Jun 20, 2026-6pm CDT Jun 27, 2026
 
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Additional Resources

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