Multiple Hazards through Upcoming Weekend

The threat of severe thunderstorms will exist in the Midwest and Ohio Valley through Friday. Elevated to critical fire weather conditions will be in place across the Four-Corners through the weekend. Early season heat with likely record high temperatures will spread from the South into the Ohio Valley, Mid-Atlantic, and Northeast on Friday, Saturday and perhaps Sunday. Read More >

Hazardous Weather Conditions

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Overcast

77°F

25°C

Humidity 88%
Wind Speed S 13 G 23 mph
Barometer 29.66 in (1003.4 mb)
Dewpoint 73°F (23°C)
Visibility 9.00 mi
Heat Index78°F (26°C)
Last update 20 May 6:56 am CDT
Extended Forecast for

2 Miles SW Hays TX

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 4pm.  Cloudy, then gradually becoming mostly sunny, with a high near 96. Heat index values as high as 103. South wind 15 to 20 mph, with gusts as high as 30 mph.

    Mostly Cloudy
    then Slight
    Chance
    T-storms

    High: 96 °F

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 7pm.  Increasing clouds, with a low around 74. South wind 15 to 20 mph, with gusts as high as 30 mph.

    Slight Chance
    T-storms then
    Mostly Cloudy

    Low: 74 °F

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 1pm.  Mostly cloudy, then gradually becoming sunny, with a high near 98. Heat index values as high as 105. South wind around 15 mph, with gusts as high as 25 mph.

    Partly Sunny
    then Slight
    Chance
    T-storms

    High: 98 °F

  • Saturday
    Night

    Saturday Night: A 40 percent chance of showers and thunderstorms.  Increasing clouds, with a low around 67. Southeast wind 10 to 15 mph becoming northeast after midnight. Winds could gust as high as 25 mph.

    Chance
    T-storms

    Low: 67 °F

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 80. North northeast wind around 15 mph, with gusts as high as 20 mph.

    Chance
    T-storms

    High: 80 °F

  • Sunday
    Night

    Sunday Night: A 20 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 67. East northeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Slight Chance
    T-storms

    Low: 67 °F

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 84. East southeast wind 5 to 15 mph, with gusts as high as 20 mph.

    Chance
    T-storms

    High: 84 °F

  • Monday
    Night

    Monday Night: Showers and thunderstorms likely, mainly before 1am. Some of the storms could produce heavy rainfall.  Mostly cloudy, with a low around 69. Southeast wind 5 to 15 mph, with gusts as high as 20 mph.  Chance of precipitation is 60%.

    Heavy Rain

    Low: 69 °F

  • Tuesday

    Tuesday: Showers and thunderstorms likely, mainly after 1pm.  Cloudy, with a high near 80. South wind 10 to 15 mph, with gusts as high as 20 mph.  Chance of precipitation is 70%.

    T-storms
    Likely

    High: 80 °F

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 96. Heat index values as high as 103. South wind 15 to 20 mph, with gusts as high as 30 mph.
Tonight
A 10 percent chance of showers and thunderstorms before 7pm. Increasing clouds, with a low around 74. South wind 15 to 20 mph, with gusts as high as 30 mph.
Saturday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 98. Heat index values as high as 105. South wind around 15 mph, with gusts as high as 25 mph.
Saturday Night
A 40 percent chance of showers and thunderstorms. Increasing clouds, with a low around 67. Southeast wind 10 to 15 mph becoming northeast after midnight. Winds could gust as high as 25 mph.
Sunday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 80. North northeast wind around 15 mph, with gusts as high as 20 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67. East northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Monday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 84. East southeast wind 5 to 15 mph, with gusts as high as 20 mph.
Monday Night
Showers and thunderstorms likely, mainly before 1am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 69. Southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Tuesday
Showers and thunderstorms likely, mainly after 1pm. Cloudy, with a high near 80. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 69.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 84.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Thursday
Mostly sunny, with a high near 82.
Click Map For Forecast
Point Forecast:
2 Miles SW Hays TX
 30.09°N 97.89°W (Elev. 801 ft)
2:38 am CDT May 20, 2022
7am CDT May 20, 2022-6pm CDT May 26, 2022
 
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