Widespread Heat This Week; Monsoon Rain Lingers

Widespread heat concerns are expected through at least midweek as high pressure covers a large portion of the U.S., especially the Central half. Excessive heat warnings and watches along with heat advisories are in effect from the northern Plains to the northwestern Gulf Coast and in parts of the West. Flood watches continue in parts of the Southwest due to the heavy monsoon rain threat. Read More >

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Fair

95°F

35°C

Humidity 46%
Wind Speed SE 8 mph
Barometer 29.97 in (1013.7 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index103°F (39°C)
Last update 26 Jul 3:56 pm CDT
Extended Forecast for

2 Miles E San Marcos TX

  • Tonight

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

    Mostly Clear

    Low: 73 °F

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms between 1pm and 4pm.  Mostly sunny, with a high near 98. Southwest wind 5 to 10 mph.  Chance of precipitation is 20%.

    Mostly Sunny
    then Slight
    Chance
    T-storms

    High: 98 °F

  • Tuesday
    Night

    Tuesday Night: Partly cloudy, with a low around 74. South southeast wind around 5 mph.

    Partly Cloudy

    Low: 74 °F

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 95. Heat index values as high as 102. Southwest wind 5 to 10 mph becoming southeast in the afternoon.

    Mostly Sunny
    then Slight
    Chance
    T-storms

    High: 95 °F

  • Wednesday
    Night

    Wednesday Night: Mostly clear, with a low around 73. East southeast wind 5 to 10 mph becoming south southwest after midnight.

    Mostly Clear

    Low: 73 °F

  • Thursday

    Thursday: Sunny, with a high near 95. Southwest wind 5 to 10 mph becoming southeast in the afternoon.

    Sunny

    High: 95 °F

  • Thursday
    Night

    Thursday Night: Mostly clear, with a low around 74. Southeast wind 5 to 10 mph becoming south southwest after midnight.

    Mostly Clear

    Low: 74 °F

  • Friday

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

    Sunny

    High: 97 °F

  • Friday
    Night

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

    Mostly Clear

    Low: 75 °F

Detailed Forecast

Tonight
Mostly clear, with a low around 73. South wind 5 to 10 mph.
Tuesday
A slight chance of showers and thunderstorms between 1pm and 4pm. Mostly sunny, with a high near 98. Southwest wind 5 to 10 mph. Chance of precipitation is 20%.
Tuesday Night
Partly cloudy, with a low around 74. South southeast wind around 5 mph.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 95. Heat index values as high as 102. Southwest wind 5 to 10 mph becoming southeast in the afternoon.
Wednesday Night
Mostly clear, with a low around 73. East southeast wind 5 to 10 mph becoming south southwest after midnight.
Thursday
Sunny, with a high near 95. Southwest wind 5 to 10 mph becoming southeast in the afternoon.
Thursday Night
Mostly clear, with a low around 74. Southeast wind 5 to 10 mph becoming south southwest after midnight.
Friday
Sunny, with a high near 97. South southeast wind 5 to 10 mph.
Friday Night
Mostly clear, with a low around 75. South southeast wind 5 to 10 mph.
Saturday
Sunny, with a high near 97.
Saturday Night
Mostly clear, with a low around 75.
Sunday
Sunny, with a high near 98.
Sunday Night
Mostly clear, with a low around 74.
Monday
Sunny and hot, with a high near 99.
Click Map For Forecast
Point Forecast:
2 Miles E San Marcos TX
 29.88°N 97.91°W (Elev. 597 ft)
1:26 pm CDT Jul 26, 2021
4pm CDT Jul 26, 2021-6pm CDT Aug 2, 2021
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database