Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Current conditions at

San Antonio, San Antonio International Airport (KSAT)

Lat: 29.53°NLon: 98.46°WElev: 807ft.

A Few Clouds

58°F

14°C

Humidity 31%
Wind Speed S 3 mph
Barometer 30.28 in (1024.4 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 19 Jan 11:51 am CST
Extended Forecast for

San Antonio TX

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 67. Southeast wind around 5 mph.

    High: 67 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 46. Southeast wind around 5 mph becoming north northeast after midnight.

    Low: 46 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Cloudy, with a high near 60. East wind 5 to 10 mph.

    High: 60 °F

    Cloudy

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers.  Cloudy, with a low around 54. East wind around 5 mph becoming calm  after midnight.

    Low: 54 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A 20 percent chance of showers.  Mostly cloudy, with a high near 69. Calm wind becoming south around 5 mph.

    High: 69 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 54. Calm wind becoming north northeast around 5 mph after midnight.

    Low: 54 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 72. North northeast wind around 5 mph becoming east southeast in the afternoon.

    High: 72 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 56. East southeast wind around 5 mph.

    Low: 56 °F

    Mostly Cloudy

  • Friday

    Friday: A 30 percent chance of showers, mainly after noon.  Cloudy, with a high near 69. East southeast wind 5 to 10 mph.

    High: 69 °F

    Chance
    Showers

Detailed Forecast

M.L.King Day
Sunny, with a high near 67. Southeast wind around 5 mph.
Tonight
Increasing clouds, with a low around 46. Southeast wind around 5 mph becoming north northeast after midnight.
Tuesday
Cloudy, with a high near 60. East wind 5 to 10 mph.
Tuesday Night
A 40 percent chance of showers. Cloudy, with a low around 54. East wind around 5 mph becoming calm after midnight.
Wednesday
A 20 percent chance of showers. Mostly cloudy, with a high near 69. Calm wind becoming south around 5 mph.
Wednesday Night
Partly cloudy, with a low around 54. Calm wind becoming north northeast around 5 mph after midnight.
Thursday
Partly sunny, with a high near 72. North northeast wind around 5 mph becoming east southeast in the afternoon.
Thursday Night
Mostly cloudy, with a low around 56. East southeast wind around 5 mph.
Friday
A 30 percent chance of showers, mainly after noon. Cloudy, with a high near 69. East southeast wind 5 to 10 mph.
Friday Night
Showers likely, mainly after midnight. Cloudy, with a low around 38. Chance of precipitation is 60%.
Saturday
A 50 percent chance of showers. Mostly cloudy, with a high near 44.
Saturday Night
A chance of rain or freezing rain. Mostly cloudy, with a low around 28. Chance of precipitation is 30%.
Sunday
Partly sunny, with a high near 41.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
San Antonio TX
 29.46°N 98.5°W (Elev. 741 ft)
11:58 am CST Jan 19, 2026
12pm CST Jan 19, 2026-6pm CST Jan 25, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database