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Heavy Rains and Potential for Flash Floods

Severe thunderstorms with damaging winds and heavy rains will be possible from the Ohio Valley to the Northeast Tuesday. In addition, heavy rains possible in the central Plains and southern Rockies. Heavy rain threat moves into the southern Mid-Atlantic Wednesday. Dry conditions remain out west where isolated dry thunderstorms could exacerbate ongoing fires and start new fires. Read More >

Hazardous Weather Conditions

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 72%
Wind Speed S 15 mph
Barometer 30.11 in (1017.7 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 22 Aug 12:51 am CDT
Extended Forecast for

San Antonio TX

  • Overnight

    Overnight: Partly cloudy, with a low around 76. South southeast wind around 5 mph.

    Partly Cloudy

    Low: 76 °F

  • Tuesday

    Tuesday: Mostly sunny and hot, with a high near 98. Heat index values as high as 103. Calm wind becoming southeast around 5 mph in the afternoon.

    Hot

    High: 98 °F

  • Tuesday
    Night

    Tuesday Night: Mostly clear, with a low around 76. Southeast wind around 5 mph becoming calm  after midnight.

    Mostly Clear

    Low: 76 °F

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms.  Mostly sunny and hot, with a high near 99. Heat index values as high as 102. Calm wind becoming east around 5 mph in the afternoon.

    Slight Chance
    T-storms

    High: 99 °F

  • Wednesday
    Night

    Wednesday Night: Mostly clear, with a low around 76. East wind around 5 mph becoming calm  after midnight.

    Mostly Clear

    Low: 76 °F

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms.  Mostly sunny and hot, with a high near 97. Calm wind becoming east around 5 mph in the afternoon.

    Chance
    T-storms

    High: 97 °F

  • Thursday
    Night

    Thursday Night: A 20 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 76. East southeast wind around 5 mph.

    Slight Chance
    T-storms

    Low: 76 °F

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 91. East wind 5 to 10 mph.

    Chance
    T-storms

    High: 91 °F

  • Friday
    Night

    Friday Night: Showers and thunderstorms likely.  Cloudy, with a low around 75. East southeast wind 5 to 10 mph.  Chance of precipitation is 60%.

    T-storms
    Likely

    Low: 75 °F

Detailed Forecast

Overnight
Partly cloudy, with a low around 76. South southeast wind around 5 mph.
Tuesday
Mostly sunny and hot, with a high near 98. Heat index values as high as 103. Calm wind becoming southeast around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 76. Southeast wind around 5 mph becoming calm after midnight.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 99. Heat index values as high as 102. Calm wind becoming east around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 76. East wind around 5 mph becoming calm after midnight.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 97. Calm wind becoming east around 5 mph in the afternoon.
Thursday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 76. East southeast wind around 5 mph.
Friday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 91. East wind 5 to 10 mph.
Friday Night
Showers and thunderstorms likely. Cloudy, with a low around 75. East southeast wind 5 to 10 mph. Chance of precipitation is 60%.
Saturday
Showers and thunderstorms likely. Mostly cloudy, with a high near 90. Chance of precipitation is 60%.
Saturday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 75. Chance of precipitation is 60%.
Sunday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 92.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73.
Monday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 91.
Click Map For Forecast
Point Forecast:
San Antonio TX
 29.46°N 98.5°W (Elev. 741 ft)
5:43 pm CDT Aug 21, 2017
1am CDT Aug 22, 2017-6pm CDT Aug 28, 2017
 
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Additional Resources

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