Fire Weather Concerns in the Southern Plains and Southeast; Thunderstorms in the Southeast and Mid-Atlantic

Elevated to locally critical fire weather conditions will continue across portions of the Southern Plains and Southeast today due to gusty winds and low humidity. Widely scattered strong to severe storms may impact southern Texas through the Southeast and the central Appalachians and southern Mid-Atlantic. Read More >

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89° N Lon: 97.86° W Elev: 597 ft.

Overcast with Haze

81°F

27°C

Humidity 79%
Wind Speed SE 7 mph
Barometer 29.88 in (1011.2 mb)
Dewpoint 74°F (23°C)
Visibility 2.00 mi
Heat Index86°F (30°C)
Last update 29 Apr 1:56 pm CDT
Detailed forecast for

Hays County

Rest Of Today
Mostly cloudy with showers and thunderstorms likely. Some thunderstorms may be severe. Highs in the mid 80s. Temperature falling into the upper 70s this afternoon. Northeast winds 5 to 10 mph. Chance of rain 60 percent.
Tonight
Cloudy with a slight chance of showers and thunderstorms. Lows in the mid 60s. Northeast winds 5 to 10 mph. Chance of rain 20 percent.
Thursday
Cloudy with a chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the upper 70s. Northeast winds 5 to 10 mph. Chance of rain 50 percent.
Thursday Night
A chance of thunderstorms. Showers. Lows around 60. Northeast winds around 10 mph with gusts up to 20 mph. Chance of rain 90 percent.
Friday
Showers. A chance of thunderstorms in the morning, then thunderstorms likely in the afternoon. Cooler with highs in the mid 60s. Temperature falling into the upper 50s in the afternoon. Northeast winds 15 to 20 mph. Gusts up to 35 mph in the afternoon. Chance of rain near 100 percent.
Friday Night
Mostly cloudy. A slight chance of showers in the evening. Cooler with lows around 50.
Saturday
Partly cloudy in the morning, then clearing. Highs in the upper 60s.
Saturday Night
Mostly clear. Lows in the upper 40s.
Sunday And Sunday Night
Partly cloudy. Highs in the mid 70s. Lows in the mid 50s.
Monday
Mostly cloudy in the morning, then becoming partly cloudy. Highs in the lower 80s.
Monday Night
Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 60s.
Tuesday
Mostly cloudy. Highs in the upper 80s.



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133 PM CDT Wed Apr 29 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database