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Early Season Heat; Late Season Snow

An early season heat wave will consume a good portion of the Eastern U.S. today through the weekend, including the Northeast, Mid-Atlantic and Ohio Valley. Numerous record high temperatures are likely and heat advisories are in effect for Boston, New York City and Philadelphia. A late season snow will impact the central Rockies and several inches of snow are possible in the Denver metro area. 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

82°F

28°C

Humidity 69%
Wind Speed S 13 mph
Barometer 29.67 in (1002.7 mb)
Dewpoint 71°F (22°C)
Visibility 9.00 mi
Heat Index86°F (30°C)
Last update 20 May 9:51 am CDT
Extended Forecast for

3 Miles E San Antonio International Airport TX

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 98. Heat index values as high as 106. South wind around 15 mph, with gusts as high as 25 mph.

    Mostly Cloudy
    then Slight
    Chance
    T-storms

    High: 98 °F

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 7pm. Increasing clouds, with a low around 75. Southeast wind 10 to 20 mph, with gusts as high as 25 mph.

    Slight Chance
    T-storms then
    Mostly Cloudy

    Low: 75 °F

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, then gradually becoming sunny and hot, with a high near 99. Heat index values as high as 106. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Partly Sunny
    then Slight
    Chance
    T-storms

    High: 99 °F

  • Saturday
    Night

    Saturday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Southeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Chance
    T-storms

    Low: 70 °F

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 84. Northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Chance
    T-storms

    High: 84 °F

  • Sunday
    Night

    Sunday Night: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. East northeast wind 5 to 15 mph, with gusts as high as 20 mph.

    Slight Chance
    T-storms

    Low: 70 °F

  • Monday

    Monday: Showers and thunderstorms likely, mainly after 1pm. Mostly cloudy, with a high near 86. East southeast wind 5 to 10 mph. Chance of precipitation is 60%.

    Chance
    T-storms then
    T-storms
    Likely

    High: 86 °F

  • Monday
    Night

    Monday Night: Showers and thunderstorms likely, mainly before 1am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 70. East wind 10 to 15 mph becoming south after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 60%.

    Heavy Rain

    Low: 70 °F

  • Tuesday

    Tuesday: Showers and thunderstorms likely, mainly after 1pm. Mostly cloudy, with a high near 81. Southeast wind around 10 mph. Chance of precipitation is 60%.

    T-storms
    Likely

    High: 81 °F

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 98. Heat index values as high as 106. South wind around 15 mph, with gusts as high as 25 mph.
Tonight
A 10 percent chance of showers and thunderstorms before 7pm. Increasing clouds, with a low around 75. Southeast wind 10 to 20 mph, with gusts as high as 25 mph.
Saturday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, then gradually becoming sunny and hot, with a high near 99. Heat index values as high as 106. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 84. Northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. East northeast wind 5 to 15 mph, with gusts as high as 20 mph.
Monday
Showers and thunderstorms likely, mainly after 1pm. Mostly cloudy, with a high near 86. East southeast wind 5 to 10 mph. Chance of precipitation is 60%.
Monday Night
Showers and thunderstorms likely, mainly before 1am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 70. East wind 10 to 15 mph becoming south after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 60%.
Tuesday
Showers and thunderstorms likely, mainly after 1pm. Mostly cloudy, with a high near 81. Southeast wind around 10 mph. Chance of precipitation is 60%.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 71.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 85.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
Thursday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
3 Miles E San Antonio International Airport TX
 29.53°N 98.43°W (Elev. 741 ft)
Last Update:
8:54 am CDT May 20, 2022
Forecast Valid:
9am CDT May 20, 2022-6pm CDT May 26, 2022
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation