Areas of Extreme Heat and Fire Weather in the Pacific Northwest; Heavy Rain in the West and South-central US

Extreme heat will continue across the Pacific Northwest into midweek before finally waning. Hot temperatures, dry, gusty conditions, and isolated dry thunderstorms will bring critical fire weather. Heavy rain and thunderstorms are expected across portions of the Southwest, the Sierras, and the central/southern Plains. A series of storms will bring heavy rain and strong winds to southern Alaska. Read More >

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Fair

73°F

23°C

Humidity 74%
Wind Speed Calm
Barometer 30.06 in (1017.3 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 26 Aug 3:56 am CDT
Extended Forecast for

Mountain City TX

  • Today

    Today: Sunny, with a high near 97. Heat index values as high as 103. Light and variable wind becoming east 5 to 10 mph in the afternoon.

    High: 97 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 73. East wind 5 to 10 mph becoming light and variable  after midnight.

    Low: 73 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 94. Heat index values as high as 101. Light east wind becoming south southeast 5 to 10 mph in the morning.  Chance of precipitation is 30%.

    High: 94 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 73. South southeast wind 5 to 10 mph.

    Low: 73 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 97. South wind 5 to 10 mph.

    High: 97 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 73. South wind 5 to 10 mph.

    Low: 73 °F

    Mostly Clear

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 98. South southwest wind around 5 mph becoming southeast in the afternoon.

    High: 98 °F

    Sunny then
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms.  Partly cloudy, with a low around 73. Southeast wind around 5 mph.  Chance of precipitation is 30%.

    Low: 73 °F

    Chance
    Showers

  • Saturday

    Saturday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm.  Partly sunny, with a high near 93. Southeast wind around 5 mph becoming east northeast in the afternoon.  Chance of precipitation is 40%.

    High: 93 °F

    Slight Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 97. Heat index values as high as 103. Light and variable wind becoming east 5 to 10 mph in the afternoon.
Tonight
Partly cloudy, with a low around 73. East wind 5 to 10 mph becoming light and variable after midnight.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94. Heat index values as high as 101. Light east wind becoming south southeast 5 to 10 mph in the morning. Chance of precipitation is 30%.
Wednesday Night
Mostly clear, with a low around 73. South southeast wind 5 to 10 mph.
Thursday
Sunny, with a high near 97. South wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 73. South wind 5 to 10 mph.
Friday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 98. South southwest wind around 5 mph becoming southeast in the afternoon.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 73. Southeast wind around 5 mph. Chance of precipitation is 30%.
Saturday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 93. Southeast wind around 5 mph becoming east northeast in the afternoon. Chance of precipitation is 40%.
Saturday Night
A slight chance of showers and thunderstorms, then a chance of showers after 1am. Mostly cloudy, with a low around 72. Chance of precipitation is 30%.
Sunday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 91.
Sunday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 70.
Labor Day
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 90.
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ABOUT THIS FORECAST

 
Point Forecast:
Mountain City TX
 30.04°N 97.89°W (Elev. 837 ft)
3:18 am CDT Aug 26, 2025
4am CDT Aug 26, 2025-6pm CDT Sep 1, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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