National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Williamson-Sodus Airport (KSDC)

Lat: 43.23°NLon: 77.12°WElev: 424ft.

Fair

39°F

4°C

Humidity 70%
Wind Speed Calm
Barometer 30.20 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 29 Mar 10:15 pm EDT
Extended Forecast for

4 Miles SSW Alton NY

  • Tonight

    Tonight: Mostly cloudy, with a low around 38. South wind 6 to 9 mph.

    Low: 38 °F

    Mostly Cloudy

  • Monday

    Monday: A slight chance of showers after 3pm. Partly sunny, with a high near 59. West wind 6 to 10 mph. Chance of precipitation is 20%.

    High: 59 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: A slight chance of showers before 7pm, then a chance of showers after 8pm. Mostly cloudy, with a low around 46. Light and variable wind. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 46 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Rain likely, then rain and possibly a thunderstorm after 2pm. High near 63. Southwest wind 5 to 9 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 63 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain and possibly a thunderstorm. Low around 41. Southwest wind 7 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 41 °F

    Rain

  • Wednesday

    Wednesday: A chance of showers, mainly before 2pm. Mostly cloudy, with a high near 54. Northwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 54 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of rain and snow showers after 2am. Mostly cloudy, with a low around 34. Northwest wind around 6 mph becoming northeast after midnight. Chance of precipitation is 30%.

    Low: 34 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Thursday

    Thursday: A chance of rain and snow showers before 2pm, then rain showers likely. Cloudy, with a high near 48. Northeast wind 7 to 9 mph. Chance of precipitation is 70%.

    High: 48 °F

    Rain/Snow
    Likely

  • Thursday Night

    Thursday Night: Showers likely. Cloudy, with a low around 39. Chance of precipitation is 70%.

    Low: 39 °F

    Showers
    Likely

Detailed Forecast

Tonight
Mostly cloudy, with a low around 38. South wind 6 to 9 mph.
Monday
A slight chance of showers after 3pm. Partly sunny, with a high near 59. West wind 6 to 10 mph. Chance of precipitation is 20%.
Monday Night
A slight chance of showers before 7pm, then a chance of showers after 8pm. Mostly cloudy, with a low around 46. Light and variable wind. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Rain likely, then rain and possibly a thunderstorm after 2pm. High near 63. Southwest wind 5 to 9 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Rain and possibly a thunderstorm. Low around 41. Southwest wind 7 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday
A chance of showers, mainly before 2pm. Mostly cloudy, with a high near 54. Northwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
A chance of rain and snow showers after 2am. Mostly cloudy, with a low around 34. Northwest wind around 6 mph becoming northeast after midnight. Chance of precipitation is 30%.
Thursday
A chance of rain and snow showers before 2pm, then rain showers likely. Cloudy, with a high near 48. Northeast wind 7 to 9 mph. Chance of precipitation is 70%.
Thursday Night
Showers likely. Cloudy, with a low around 39. Chance of precipitation is 70%.
Friday
Showers likely, mainly before 2pm. Cloudy, with a high near 55. Chance of precipitation is 60%.
Friday Night
A chance of showers. Cloudy, with a low around 38. Chance of precipitation is 30%.
Saturday
A chance of showers. Mostly cloudy, with a high near 58. Chance of precipitation is 40%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 47. Chance of precipitation is 50%.
Sunday
Showers likely. Mostly cloudy, with a high near 64. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Alton NY
 43.18°N 77.09°W (Elev. 499 ft)
Last Update:
9:58 pm EDT Mar 29, 2026
Forecast Valid:
10pm EDT Mar 29, 2026-6pm EDT Apr 5, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation