Areas of Heavy Rainfall and Heat Early This Week

Excessive rainfall may produce locally considerable flash flooding over parts of South Texas, the western Gulf Coast, and lower Mississippi River Valley today into Thursday. Rainfall totals of 5 to 10 inches are expected. Hot temperatures may cause heat illnesses over central and northern California and the Pacific Northwest through Tuesday. Read More >

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Fair

82°F

28°C

Humidity	74%
Wind Speed	NE 6 mph
Barometer	29.88 in (1011.2 mb)
Dewpoint	73°F (23°C)
Visibility	10.00 mi
Heat Index	87°F (31°C)
Last update	15 Jun 5:56 pm CDT

More Information:

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

Extended Forecast for

2 Miles SSE Mountain City TX

Tonight
Low: 73 °F
Chance
T-storms then
Showers
Likely
Tuesday
High: 84 °F
Showers
Likely
Tuesday Night
Low: 72 °F
Increasing
Clouds
Wednesday
High: 89 °F
Decreasing
Clouds
Wednesday Night
Low: 75 °F
Partly Cloudy
Thursday
High: 95 °F
Mostly Sunny
Thursday Night
Low: 78 °F
Mostly Clear
then Chance
T-storms
Juneteenth
High: 92 °F
Chance
T-storms
Friday Night
Low: 76 °F
Chance
T-storms

Detailed Forecast

Tonight

A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 73. East northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tuesday

A chance of showers and thunderstorms before 7am, then showers likely and possibly a thunderstorm between 7am and 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Tuesday Night

Increasing clouds, with a low around 72. East wind around 5 mph becoming calm in the evening.

Wednesday

Mostly cloudy, then gradually becoming sunny, with a high near 89. Heat index values as high as 100. East northeast wind 5 to 10 mph becoming southeast in the afternoon.

Wednesday Night

Partly cloudy, with a low around 75. South wind 5 to 10 mph.

Thursday

Mostly sunny, with a high near 95. South wind around 10 mph, with gusts as high as 20 mph.

Thursday Night

A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 78. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.

Juneteenth

A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 92. East wind 5 to 10 mph.

Friday Night

A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 76. East southeast wind 5 to 10 mph.

Saturday

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 90. Chance of precipitation is 60%.

Saturday Night

A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76.

Sunday

Partly sunny, with a high near 92.

Sunday Night

Partly cloudy, with a low around 77.

Monday

Mostly sunny, with a high near 95.