Excessive Rainfall and Potential Tropical Cyclone in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce locally considerable flash flooding over parts of the northwestern Gulf Coast, lower Mississippi River Valley, and Deep South through Thursday. Potential Tropical Cyclone One is forecast to become a tropical storm (Arthur) as it moves along or just off the northwestern Gulf coast through Wednesday. An outbreak of severe weather is forecast in the Midwest Wednesday. Read More >

Hazardous Weather Conditions

Extreme Heat Warning in effect from June 18, 12:00 PM CDT until June 18, 08:00 PM CDT

Current conditions at

San Antonio Boerne Stage Field (K5C1)

Lat: 29.72°NLon: 98.69°WElev: 1385ft.

Fair

75°F

24°C

Humidity	100%
Wind Speed	Calm
Barometer	29.79 in
Dewpoint	75°F (24°C)
Visibility	10.00 mi
Last update	17 Jun 8:35 am CDT

More Information:

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

Extended Forecast for

2 Miles NNW Spring Branch TX

Extreme Heat Warning June 18, 12:00pm until June 18, 08:00pm

Click here for hazard details and duration

Extreme Heat Warning

Today
High: 94 °F
Becoming
Sunny
Tonight
Low: 77 °F
Increasing
Clouds
Thursday
High: 97 °F
Partly Sunny
Thursday Night
Low: 79 °F
Increasing
Clouds
Juneteenth
High: 93 °F
Mostly Cloudy
then Slight
Chance
T-storms
Friday Night
Low: 76 °F
Chance
T-storms
Saturday
High: 91 °F
Slight Chance
T-storms then
Chance
T-storms
Saturday Night
Low: 76 °F
Chance
T-storms
Sunday
High: 93 °F
Mostly Sunny

Detailed Forecast

Today

Mostly cloudy through mid morning, then gradual clearing, with a high near 94. Heat index values as high as 103. Calm wind becoming south around 5 mph in the afternoon.

Tonight

Increasing clouds, with a low around 77. South wind 5 to 10 mph.

Thursday

Partly sunny, with a high near 97. Heat index values as high as 110. South wind 5 to 10 mph, with gusts as high as 20 mph.

Thursday Night

Increasing clouds, with a low around 79. South southeast wind 5 to 10 mph, with gusts as high as 25 mph.

Juneteenth

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

Friday Night

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

Saturday

A 50 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 91. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

Saturday Night

A 40 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 76. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

Sunday

Mostly sunny, with a high near 93. South wind 10 to 15 mph, with gusts as high as 25 mph.

Sunday Night

Partly cloudy, with a low around 77.

Monday

Mostly sunny, with a high near 95.

Monday Night

Partly cloudy, with a low around 76.

Tuesday

Mostly sunny, with a high near 95.