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, Stinson Municipal Airport (KSSF)

Lat: 29.34°NLon: 98.47°WElev: 574ft.

Fair

39°F

4°C

Humidity 38%
Wind Speed NW 3 mph
Barometer 30.24 in (1024.4 mb)
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Last update 18 Jan 11:53 pm CST
Extended Forecast for

San Antonio, Stinson Municipal Airport TX

  • Overnight

    Overnight: Clear, with a low around 33. West southwest wind around 5 mph becoming calm.

    Low: 33 °F

    Clear

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 67. Light and variable wind becoming southeast 5 to 10 mph in the afternoon.

    High: 67 °F

    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 46. East southeast wind 5 to 10 mph becoming northeast after midnight.

    Low: 46 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Cloudy, with a high near 59. East northeast wind around 10 mph.

    High: 59 °F

    Cloudy

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers.  Cloudy, with a low around 53. Southeast wind 5 to 10 mph.

    Low: 53 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers, mainly before noon.  Mostly cloudy, with a high near 67. Southeast wind around 5 mph becoming south southwest in the afternoon.

    High: 67 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 52. East wind around 5 mph becoming north northeast after midnight.

    Low: 52 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 71. North northeast wind around 5 mph becoming east in the afternoon.

    High: 71 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 53. East southeast wind around 5 mph.

    Low: 53 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Clear, with a low around 33. West southwest wind around 5 mph becoming calm.
M.L.King Day
Sunny, with a high near 67. Light and variable wind becoming southeast 5 to 10 mph in the afternoon.
Monday Night
Increasing clouds, with a low around 46. East southeast wind 5 to 10 mph becoming northeast after midnight.
Tuesday
Cloudy, with a high near 59. East northeast wind around 10 mph.
Tuesday Night
A 40 percent chance of showers. Cloudy, with a low around 53. Southeast wind 5 to 10 mph.
Wednesday
A 30 percent chance of showers, mainly before noon. Mostly cloudy, with a high near 67. Southeast wind around 5 mph becoming south southwest in the afternoon.
Wednesday Night
Partly cloudy, with a low around 52. East wind around 5 mph becoming north northeast after midnight.
Thursday
Mostly sunny, with a high near 71. North northeast wind around 5 mph becoming east in the afternoon.
Thursday Night
Mostly cloudy, with a low around 53. East southeast wind around 5 mph.
Friday
Mostly cloudy, with a high near 72.
Friday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 42.
Saturday
A 40 percent chance of showers. Mostly cloudy, with a high near 49.
Saturday Night
Mostly cloudy, with a low around 34.
Sunday
A 20 percent chance of showers. Mostly cloudy, with a high near 44.
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ABOUT THIS FORECAST

 
Point Forecast:
San Antonio, Stinson Municipal Airport TX
 29.32°N 98.47°W (Elev. 581 ft)
11:58 pm CST Jan 18, 2026
12am CST Jan 19, 2026-6pm CST Jan 25, 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