Tracking Major Hurricane Erin; Hot in the Mid-Mississippi Valley

Major Hurricane Erin is tracking just north of the lower Bahamas today. Dangerous surf and rip current threats increase this week for most of the Atlantic coastline. Erin's outerbands may impact the Outer Banks later this week. Hot to extremely hot temperatures are forecast today and Tuesday from a part of the southern Plains into the central to lower Mississippi River Valley. Read More >

Current conditions at

San Antonio, San Antonio International Airport (KSAT)

Lat: 29.53°NLon: 98.46°WElev: 807ft.

Mostly Cloudy

78°F

26°C

Humidity	87%
Wind Speed	SW 5 mph
Barometer	30.01 in (1014.1 mb)
Dewpoint	74°F (23°C)
Visibility	10.00 mi
Heat Index	80°F (27°C)
Last update	18 Aug 6:51 am CDT

More Information:

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

Extended Forecast for

San Antonio TXSimilar City Names

Today
High: 100 °F
Mostly Sunny
then Slight
Chance
T-storms
Tonight
Low: 78 °F
Slight Chance
T-storms then
Mostly Clear
Tuesday
High: 99 °F
Sunny then
Chance
T-storms
Tuesday Night
Low: 78 °F
Chance
Showers
Wednesday
High: 99 °F
Chance
Showers
Wednesday Night
Low: 78 °F
Chance
Showers
Thursday
High: 95 °F
Chance
Showers then
Showers
Likely
Thursday Night
Low: 76 °F
Chance
T-storms
Friday
High: 93 °F
Chance
Showers then
Chance
T-storms

Detailed Forecast

Today

A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny and hot, with a high near 100. Heat index values as high as 105. Calm wind becoming southeast around 5 mph in the afternoon.

Tonight

A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 78. East southeast wind around 5 mph becoming calm after midnight.

Tuesday

A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 99. Heat index values as high as 103. Calm wind becoming east around 5 mph in the afternoon.

Tuesday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 78. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

Wednesday

A chance of showers, with thunderstorms also possible after 4pm. Mostly sunny and hot, with a high near 99. Northwest wind around 5 mph becoming east in the afternoon. Chance of precipitation is 40%.

Wednesday Night

A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 78. East wind around 5 mph becoming calm in the evening.

Thursday

A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 95. West wind around 5 mph becoming northeast in the afternoon. Chance of precipitation is 70%.

Thursday Night

A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76. North northeast wind around 5 mph becoming calm in the evening.

Friday

A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 93. North northwest wind around 5 mph becoming east northeast in the afternoon. Chance of precipitation is 50%.

Friday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 75. Chance of precipitation is 40%.

Saturday

A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.

Saturday Night

A 20 percent chance of showers. Partly cloudy, with a low around 77.

Sunday

A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.