Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Current conditions at

San Antonio, Stinson Municipal Airport (KSSF)

Lat: 29.34°NLon: 98.47°WElev: 574ft.

Fair

98°F

37°C

Humidity	34%
Wind Speed	S 8 G 21 mph
Barometer	29.97 in (1013.2 mb)
Dewpoint	65°F (18°C)
Visibility	10.00 mi
Heat Index	101°F (38°C)
Last update	17 Aug 1:53 pm CDT

More Information:

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

Extended Forecast for

5 Miles N San Antonio, Stinson Municipal Airport TX

This Afternoon
High: 100 °F
Hot
Tonight
Low: 78 °F
Partly Cloudy
Monday
High: 101 °F
Hot
Monday Night
Low: 79 °F
Mostly Clear
Tuesday
High: 100 °F
Sunny then
Chance
T-storms
Tuesday Night
Low: 79 °F
Chance
T-storms then
Chance
Showers
Wednesday
High: 99 °F
Sunny then
Chance
T-storms
Wednesday Night
Low: 79 °F
Slight Chance
T-storms then
Chance
Showers
Thursday
High: 96 °F
Slight Chance
Showers then
Showers
Likely

Detailed Forecast

This Afternoon

Mostly sunny and hot, with a high near 100. Heat index values as high as 104. South southeast wind 5 to 10 mph.

Tonight

Partly cloudy, with a low around 78. South southeast wind 5 to 10 mph.

Monday

Sunny and hot, with a high near 101. Heat index values as high as 106. Calm wind becoming southeast around 5 mph in the afternoon.

Monday Night

Mostly clear, with a low around 79. East 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 100. Calm wind becoming east northeast around 5 mph in the afternoon.

Tuesday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 79. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

Wednesday

A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 99. Calm wind becoming east around 5 mph in the afternoon.

Wednesday Night

A slight chance of showers and thunderstorms, then a chance of showers after 1am. Partly cloudy, with a low around 79. East northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

Thursday

A slight chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 96. West wind around 5 mph becoming north northeast in the afternoon. Chance of precipitation is 60%.

Thursday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 77. Chance of precipitation is 40%.

Friday

A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.

Friday Night

A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77.

Saturday

A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.