Heavy Rainfall Possible Across the Central U.S.; Poor Air Quality Across the Northwest and North Central States

Thunderstorms will produce locally heavy rainfall and possibly some flash flooding across central portions of the country through tonight, with a few strong to locally severe thunderstorms possible. Otherwise, smoke from the wildfires burning across western North America will continue to create poor air quality across northern portions of the country. Read More >

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

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

Overcast

79°F

26°C

Humidity 85%
Wind Speed S 14 mph
Barometer 29.96 in (1013.5 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 19 Aug 8:56 am CDT
Detailed forecast for

Hays County

Today
Partly cloudy in the morning then clearing. Highs in the upper 90s. South winds 10 to 15 mph. Highest heat index readings around 105.
Tonight
Partly cloudy before midnight then becoming mostly cloudy. Lows in the mid 70s. South winds 10 to 15 mph.
Monday
Mostly cloudy in the morning then becoming partly cloudy. A 20 percent chance of showers and thunderstorms. Highs in the upper 90s. South winds 5 to 10 mph. Highest heat index readings around 106.
Monday Night
Partly cloudy with a 30 percent chance of showers and thunderstorms. Lows in the mid 70s. South winds 5 to 10 mph.
Tuesday
Partly cloudy with a 20 percent chance of showers and thunderstorms. Highs in the upper 90s. Southwest winds 5 mph shifting to the east in the afternoon.
Tuesday Night
Partly cloudy. Lows in the lower 70s.
Wednesday Through Friday Night
Mostly clear. Highs in the upper 90s. Lows in the mid 70s.
Saturday
Partly cloudy. Highs in the mid 90s.



Click Map For Forecast
338 AM CDT Sun Aug 19 2018
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database