Flooding Threat Along the Gulf Coast, Southern Rockies and High Plains; Cooler Weather in the Central and Eastern U.S.

Strong thunderstorms may bring excessive rainfall and flooding over parts of the northern Gulf Coast today and over parts of the southern Rockies into the High Plains today through the weekend. A refreshingly cool and dry air mass will continue to produce below average temperatures across the central and eastern U.S. through the weekend. Read More >

Hazardous Weather Conditions

Flood Watch in effect from August 31, 12:00 PM CDT until September 1, 12:00 PM CDT

Current conditions at

San Antonio, San Antonio International Airport (KSAT)

Lat: 29.53°NLon: 98.46°WElev: 807ft.

Mostly Cloudy

81°F

27°C

Humidity	79%
Wind Speed	S 8 mph
Barometer	30.00 in (1014.0 mb)
Dewpoint	74°F (23°C)
Visibility	10.00 mi
Heat Index	86°F (30°C)
Last update	31 Aug 8:51 am CDT

More Information:

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

Extended Forecast for

3 Miles NNW Leon Valley TX

Flood Watch August 31, 12:00pm until September 1, 12:00pm

Click here for hazard details and duration

Flood Watch

Today
High: 96 °F
Mostly Sunny
then Chance
T-storms
Tonight
Low: 74 °F
Chance
T-storms then
Showers
Likely
Labor Day
High: 87 °F
Showers
Monday Night
Low: 72 °F
Slight Chance
T-storms then
Slight Chance
Showers
Tuesday
High: 92 °F
Mostly Sunny
Tuesday Night
Low: 70 °F
Mostly Clear
Wednesday
High: 95 °F
Sunny
Wednesday Night
Low: 71 °F
Mostly Clear
Thursday
High: 96 °F
Sunny

Detailed Forecast

Today

A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 96. Heat index values as high as 104. Calm wind becoming east around 5 mph in the afternoon. New rainfall amounts between a quarter and half of an inch possible.

Tonight

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 74. Northeast wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Labor Day

Showers and possibly a thunderstorm. High near 87. Northeast wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

Monday Night

A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly cloudy, with a low around 72. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.

Tuesday

Mostly sunny, with a high near 92. Northeast wind around 5 mph.

Tuesday Night

Mostly clear, with a low around 70. Northeast wind around 5 mph becoming calm in the evening.

Wednesday

Sunny, with a high near 95. North northwest wind around 5 mph.

Wednesday Night

Mostly clear, with a low around 71. Northeast wind around 5 mph becoming calm in the evening.

Thursday

Sunny, with a high near 96. Calm wind becoming south around 5 mph.

Thursday Night

Partly cloudy, with a low around 72.