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

59°F

15°C

Humidity 82%
Wind Speed Calm
Barometer 29.91 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 14 Oct 7:35 am EDT
Extended Forecast for

Alton NY

  • Today

    Today: A slight chance of showers between 8am and 11am. Cloudy, with a high near 61. Northwest wind 8 to 15 mph. Chance of precipitation is 20%.

    High: 61 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 44. North wind around 11 mph.

    Low: 44 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 56. Northeast wind 7 to 10 mph.

    High: 56 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Showers, with thunderstorms also possible after 5am. Low around 45. Southeast wind 3 to 7 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 45 °F

    Showers
    Likely then
    Showers

  • Friday

    Friday: Showers and possibly a thunderstorm. High near 60. Breezy, with a south wind 8 to 13 mph becoming west 15 to 20 mph in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 60 °F

    Showers and
    Breezy

  • Friday Night

    Friday Night: Showers likely, mainly before 2am. Mostly cloudy, with a low around 36. Breezy, with a northwest wind 18 to 23 mph, with gusts as high as 36 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Showers
    Likely and
    Breezy

  • Saturday

    Saturday: A chance of showers before 8am. Mostly sunny, with a high near 47. Breezy, with a northwest wind around 22 mph, with gusts as high as 32 mph. Chance of precipitation is 30%.

    High: 47 °F

    Breezy.
    Chance
    Showers then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 35. West wind 6 to 9 mph, with gusts as high as 21 mph.

    Low: 35 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

Detailed Forecast

Today
A slight chance of showers between 8am and 11am. Cloudy, with a high near 61. Northwest wind 8 to 15 mph. Chance of precipitation is 20%.
Tonight
Mostly cloudy, with a low around 44. North wind around 11 mph.
Thursday
Partly sunny, with a high near 56. Northeast wind 7 to 10 mph.
Thursday Night
Showers, with thunderstorms also possible after 5am. Low around 45. Southeast wind 3 to 7 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Friday
Showers and possibly a thunderstorm. High near 60. Breezy, with a south wind 8 to 13 mph becoming west 15 to 20 mph in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Friday Night
Showers likely, mainly before 2am. Mostly cloudy, with a low around 36. Breezy, with a northwest wind 18 to 23 mph, with gusts as high as 36 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A chance of showers before 8am. Mostly sunny, with a high near 47. Breezy, with a northwest wind around 22 mph, with gusts as high as 32 mph. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 35. West wind 6 to 9 mph, with gusts as high as 21 mph.
Sunday
Sunny, with a high near 59.
Sunday Night
Mostly clear, with a low around 38.
Monday
Mostly sunny, with a high near 63.
Monday Night
Mostly cloudy, with a low around 43.
Tuesday
Mostly sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Alton NY
 43.22°N 77.05°W (Elev. 499 ft)
Last Update:
6:11 am EDT Oct 14, 2026
Forecast Valid:
7am EDT Oct 14, 2026-6pm EDT Oct 20, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation