Heavy Rain and Flooding Threat in the Central U.S.; Winter Weather in Northern Alaska

Strong thunderstorms and heavy rain may produce flash flooding across the south-central Plains and lower Mississippi Valley today. The North Slope in Alaska will see the potential for wintry weather through today with ice accumulations possible on roadways. Incoming storms will bring long duration rainfall and strong winds to most of Southcentral Alaska through Friday. Read More >

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Fair

98°F

37°C

Humidity	35%
Wind Speed	SE 12 mph
Barometer	29.88 in (1011.0 mb)
Dewpoint	66°F (19°C)
Visibility	10.00 mi
Heat Index	102°F (39°C)
Last update	28 Aug 6:56 pm CDT

More Information:

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

Extended Forecast for

2 Miles WSW San Marcos TX

Tonight
Low: 76 °F
Mostly Clear
Friday
High: 100 °F
Hot
Friday Night
Low: 75 °F
Partly Cloudy
Saturday
High: 97 °F
Mostly Sunny
then Chance
T-storms
Saturday Night
Low: 75 °F
Chance
Showers
Sunday
High: 92 °F
Showers
Likely
Sunday Night
Low: 72 °F
Chance
T-storms
Labor Day
High: 90 °F
Chance
Showers then
Chance
T-storms
Monday Night
Low: 71 °F
Slight Chance
Showers

Detailed Forecast

Tonight

Mostly clear, with a low around 76. South wind 5 to 10 mph.

Friday

Sunny and hot, with a high near 100. Heat index values as high as 105. South southwest wind around 5 mph.

Friday Night

Partly cloudy, with a low around 75. East northeast wind around 5 mph becoming south after midnight.

Saturday

A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 97. Heat index values as high as 104. South southeast wind around 5 mph.

Saturday Night

A 30 percent chance of showers. Partly cloudy, with a low around 75. Southeast wind around 5 mph.

Sunday

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 92. Calm wind becoming east around 5 mph in the morning. Chance of precipitation is 60%.

Sunday Night

A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72. East northeast wind around 5 mph becoming calm in the evening.

Labor Day

A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 90. North northeast wind around 5 mph.

Monday Night

A 20 percent chance of showers before 1am. Partly cloudy, with a low around 71. Northeast wind around 5 mph becoming calm in the evening.

Tuesday

A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 93.

Tuesday Night

Mostly clear, with a low around 70.

Wednesday

Sunny, with a high near 94.