Excessive Rainfall in the Southern Plains into the Lower Mississippi and Upper Midwest

Heavy thunderstorms will continue to produce areas of excessive rainfall and locally considerable flooding over parts of the southern Plains into the mid-Mississippi River Valley through Saturday. Heavy to excessive rainfall may bring flash and urban flooding, along with isolated riverine flooding across portions of the Upper Midwest, mainly over central Minnesota. Read More >

Hazardous Weather Conditions

Flood Watch until June 12, 07:00 PM CDT

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89°NLon: 97.86°WElev: 597ft.

Overcast

72°F

22°C

Humidity	97%
Wind Speed	SE 6 mph
Barometer	29.96 in (1013.7 mb)
Dewpoint	71°F (22°C)
Visibility	10.00 mi
Last update	12 Jun 12:56 pm CDT

More Information:

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

Extended Forecast for

5 Miles SW San Marcos TX

Flood Watch June 12, 01:24pm until June 12, 07:00pm

Click here for hazard details and duration

Flood Watch

Flood Watch June 12, 01:24pm until June 12, 07:00pm
NOW until 7:00pm Thu
Flood Watch
This Afternoon
High: 84 °F
Slight Chance
T-storms
Tonight
Low: 71 °F
Mostly Cloudy
Friday
High: 92 °F
Patchy Fog
then Chance
T-storms
Friday Night
Low: 75 °F
Increasing
Clouds
Saturday
High: 93 °F
Partly Sunny
then Slight
Chance
T-storms
Saturday Night
Low: 74 °F
Partly Cloudy
Sunday
High: 94 °F
Partly Sunny
then Slight
Chance
T-storms
Sunday Night
Low: 74 °F
Partly Cloudy

Detailed Forecast

This Afternoon

A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 84. Southeast wind around 5 mph.

Tonight

Mostly cloudy, with a low around 71. South wind around 5 mph.

Friday

A chance of showers and thunderstorms between 1pm and 4pm. Patchy fog before 9am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 92. Heat index values as high as 107. South wind 5 to 10 mph. Chance of precipitation is 30%.

Friday Night

Increasing clouds, with a low around 75. South southeast wind 5 to 10 mph.

Saturday

A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. South wind 5 to 10 mph, with gusts as high as 20 mph.

Saturday Night

Partly cloudy, with a low around 74. South southeast wind 5 to 10 mph.

Sunday

A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94. South wind 5 to 10 mph.

Sunday Night

Partly cloudy, with a low around 74. South southeast wind 5 to 10 mph.

Monday

Mostly sunny, with a high near 93. South wind 5 to 10 mph.