Heavy Great Lakes Snow through Friday; Watching Potential for Major Winter Storm Late Week into this Weekend

Heavy lake effect snow will continue in the Great Lakes into Wednesday before another storm brings a widespread general snow followed by another round of heavy lake effect snow. A wide-ranging winter storm will produce great swaths of heavy snow, sleet, and treacherous freezing rain from the southern Rockies/Plains and Mid-South starting Friday and shifting toward the East Coast through Sunday. Read More >

Current conditions at

San Antonio, San Antonio International Airport (KSAT)

Lat: 29.53°NLon: 98.46°WElev: 807ft.

Overcast

59°F

15°C

Humidity 49%
Wind Speed E 8 mph
Barometer 30.26 in (1023.6 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Last update 20 Jan 2:51 pm CST
Extended Forecast for

San Antonio International Airport TX

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 60. East wind around 5 mph.

    High: 60 °F

    Mostly Cloudy

  • Tonight

    Tonight: A 30 percent chance of showers, mainly after midnight.  Patchy fog after 1am.  Otherwise, cloudy, with a low around 53. East wind around 5 mph becoming calm  after midnight.

    Low: 53 °F

    Chance
    Showers and
    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 7am.  Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 69. Calm wind becoming south southwest around 5 mph.

    High: 69 °F

    Patchy Fog
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 53. Calm wind.

    Low: 53 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 73. Calm wind becoming south southeast around 5 mph in the morning.

    High: 73 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 59. Southeast wind around 5 mph.

    Low: 59 °F

    Mostly Cloudy

  • Friday

    Friday: A 40 percent chance of showers, mainly after noon.  Cloudy, with a high near 66. Southeast wind 5 to 10 mph becoming northeast in the afternoon. Winds could gust as high as 20 mph.

    High: 66 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Showers likely.  Cloudy, with a low around 35. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.  Chance of precipitation is 70%.

    Low: 35 °F

    Showers
    Likely

  • Saturday

    Saturday: Showers likely, mainly before noon.  Cloudy, with a high near 37. North wind around 15 mph, with gusts as high as 30 mph.  Chance of precipitation is 70%.

    High: 37 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 60. East wind around 5 mph.
Tonight
A 30 percent chance of showers, mainly after midnight. Patchy fog after 1am. Otherwise, cloudy, with a low around 53. East wind around 5 mph becoming calm after midnight.
Wednesday
Patchy fog before 7am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 69. Calm wind becoming south southwest around 5 mph.
Wednesday Night
Partly cloudy, with a low around 53. Calm wind.
Thursday
Partly sunny, with a high near 73. Calm wind becoming south southeast around 5 mph in the morning.
Thursday Night
Mostly cloudy, with a low around 59. Southeast wind around 5 mph.
Friday
A 40 percent chance of showers, mainly after noon. Cloudy, with a high near 66. Southeast wind 5 to 10 mph becoming northeast in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Showers likely. Cloudy, with a low around 35. North northeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Saturday
Showers likely, mainly before noon. Cloudy, with a high near 37. North wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.
Saturday Night
A chance of freezing rain. Mostly cloudy, with a low around 21. Chance of precipitation is 40%.
Sunday
Partly sunny, with a high near 35.
Sunday Night
Partly cloudy, with a low around 21.
Monday
Mostly sunny, with a high near 44.
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ABOUT THIS FORECAST

 
Point Forecast:
San Antonio International Airport TX
 29.55°N 98.46°W (Elev. 751 ft)
1:48 pm CST Jan 20, 2026
3pm CST Jan 20, 2026-6pm CST Jan 26, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database