Severe Thunderstorms Likely Across the Ozarks and Lower Ohio Valley

Severe thunderstorms capable of producing damaging wind gusts, large hail, and a few tornadoes, are likely to develop this afternoon from parts of the lower Ohio Valley into the southern Plains. An Enhanced Risk (Level 3 of 5) outlook has been issued. Further north, widespread rain showers are expected across portions of the Great Lakes and Northeast U.S. Read More >

Hazardous Weather Conditions

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Partly Cloudy

85°F

29°C

Humidity 68%
Wind Speed SW 10 mph
Barometer 29.93 in (1012.7 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 18 Apr 12:56 pm CDT
Extended Forecast for

2 Miles W San Marcos Municipal Airport TX

  • This
    Afternoon

    This Afternoon: Mostly cloudy, then gradually becoming sunny, with a high near 88. South southeast wind around 10 mph.

    Decreasing
    Clouds

    High: 88 °F

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 1am.  Mostly cloudy, with a low around 65. South southeast wind 5 to 10 mph becoming east after midnight.

    Slight Chance
    T-storms

    Low: 65 °F

  • Friday

    Friday: Patchy fog between 8am and 11am.  Otherwise, partly sunny, with a high near 81. Northeast wind 5 to 10 mph.

    Patchy Fog
    then Partly
    Sunny

    High: 81 °F

  • Friday
    Night

    Friday Night: A 20 percent chance of showers and thunderstorms before 1am.  Mostly cloudy, with a low around 66. East southeast wind 5 to 10 mph.

    Slight Chance
    T-storms

    Low: 66 °F

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm after 1pm.  Mostly cloudy, with a high near 80. East wind 5 to 15 mph, with gusts as high as 20 mph.  Chance of precipitation is 60%.

    Cloudy then
    Showers
    Likely

    High: 80 °F

  • Saturday
    Night

    Saturday Night: Showers and possibly a thunderstorm.  Low around 55. East northeast wind 15 to 20 mph becoming north in the evening. Winds could gust as high as 25 mph.  Chance of precipitation is 90%.

    T-storms then
    Showers

    Low: 55 °F

  • Sunday

    Sunday: Mostly cloudy, with a high near 68. North wind 15 to 20 mph, with gusts as high as 30 mph.

    Mostly Cloudy

    High: 68 °F

  • Sunday
    Night

    Sunday Night: Mostly cloudy, with a low around 52. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Mostly Cloudy

    Low: 52 °F

  • Monday

    Monday: Partly sunny, with a high near 74. Northeast wind around 10 mph becoming southeast in the afternoon.

    Partly Sunny

    High: 74 °F

Detailed Forecast

This Afternoon
Mostly cloudy, then gradually becoming sunny, with a high near 88. South southeast wind around 10 mph.
Tonight
A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 65. South southeast wind 5 to 10 mph becoming east after midnight.
Friday
Patchy fog between 8am and 11am. Otherwise, partly sunny, with a high near 81. Northeast wind 5 to 10 mph.
Friday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 66. East southeast wind 5 to 10 mph.
Saturday
Showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 80. East wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Saturday Night
Showers and possibly a thunderstorm. Low around 55. East northeast wind 15 to 20 mph becoming north in the evening. Winds could gust as high as 25 mph. Chance of precipitation is 90%.
Sunday
Mostly cloudy, with a high near 68. North wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Mostly cloudy, with a low around 52. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Monday
Partly sunny, with a high near 74. Northeast wind around 10 mph becoming southeast in the afternoon.
Monday Night
Mostly cloudy, with a low around 58.
Tuesday
Partly sunny, with a high near 80.
Tuesday Night
Mostly cloudy, with a low around 64.
Wednesday
Mostly cloudy, with a high near 83.
Click Map For Forecast
Point Forecast:
2 Miles W San Marcos Municipal Airport TX
 29.9°N 97.91°W (Elev. 640 ft)
12:15 pm CDT Apr 18, 2024
1pm CDT Apr 18, 2024-6pm CDT Apr 24, 2024
 
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