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

Hazardous Weather Outlook

En Español

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 Index	78°F (26°C)
Last update	20 May 6:56 am CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Mobile Weather Hourly Weather Forecast

Extended Forecast for

2 Miles SW Hays TX

Today

Mostly Cloudy
then Slight
Chance
T-storms
High: 96 °F
Tonight

Slight Chance
T-storms then
Mostly Cloudy
Low: 74 °F
Saturday

Partly Sunny
then Slight
Chance
T-storms
High: 98 °F
Saturday
Night

Chance
T-storms
Low: 67 °F
Sunday

Chance
T-storms
High: 80 °F
Sunday
Night

Slight Chance
T-storms
Low: 67 °F
Monday

Chance
T-storms
High: 84 °F
Monday
Night

Heavy Rain
Low: 69 °F
Tuesday

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.