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.

Overcast

36°F

2°C

Humidity 87%
Wind Speed W 8 mph
Barometer 30.10 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 20 Apr 12:55 am EDT
Extended Forecast for

4 Miles SSW Alton NY

  • Overnight

    Overnight: A chance of snow showers, mainly after 4am. Mostly cloudy, with a low around 30. Northwest wind around 7 mph. Chance of precipitation is 30%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 30 °F

    Chance Snow
    Showers

  • Monday

    Monday: A chance of snow showers, mainly before 10am. Mostly cloudy, then gradually becoming sunny, with a high near 39. Northwest wind 8 to 15 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    High: 39 °F

    Chance Snow
    Showers then
    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 26. West wind around 6 mph becoming calm in the evening.

    Low: 26 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 52. South wind 5 to 7 mph.

    High: 52 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 41. South wind around 6 mph.

    Low: 41 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 57. North wind 3 to 7 mph.

    High: 57 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 39. Calm wind.

    Low: 39 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 58. Calm wind becoming north around 5 mph in the afternoon.

    High: 58 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

Detailed Forecast

Overnight
A chance of snow showers, mainly after 4am. Mostly cloudy, with a low around 30. Northwest wind around 7 mph. Chance of precipitation is 30%. Total nighttime snow accumulation of less than a half inch possible.
Monday
A chance of snow showers, mainly before 10am. Mostly cloudy, then gradually becoming sunny, with a high near 39. Northwest wind 8 to 15 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Monday Night
Mostly clear, with a low around 26. West wind around 6 mph becoming calm in the evening.
Tuesday
Partly sunny, with a high near 52. South wind 5 to 7 mph.
Tuesday Night
Mostly cloudy, with a low around 41. South wind around 6 mph.
Wednesday
Mostly sunny, with a high near 57. North wind 3 to 7 mph.
Wednesday Night
Mostly clear, with a low around 39. Calm wind.
Thursday
Mostly sunny, with a high near 58. Calm wind becoming north around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 43.
Friday
Mostly sunny, with a high near 62.
Friday Night
A chance of showers. Mostly cloudy, with a low around 46. Chance of precipitation is 50%.
Saturday
A chance of showers. Partly sunny, with a high near 60. Chance of precipitation is 50%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 43. Chance of precipitation is 30%.
Sunday
A chance of showers. Mostly cloudy, with a high near 59. Chance of precipitation is 30%.
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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:
10:03 pm EDT Apr 19, 2026
Forecast Valid:
12am EDT Apr 20, 2026-6pm EDT Apr 26, 2026
 
Forecast Discussion
 
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Additional Resources

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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