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

Cortland County-Chase Field (KN03)

Lat: 42.59°NLon: 76.21°WElev: 1198ft.

Fair

25°F

-4°C

Humidity 86%
Wind Speed Calm
Barometer 30.33 in
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 25 Mar 7:15 am EDT
Extended Forecast for

Sempronius NY

  • Today

    Today: Partly sunny, with a high near 47. South wind 3 to 7 mph.

    High: 47 °F

    Partly Sunny

  • Tonight

    Tonight: A slight chance of showers before 9pm, then a chance of showers after 2am. Mostly cloudy, with a low around 38. South wind 10 to 14 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 38 °F

    Chance
    Showers

  • Thursday

    Thursday: Rain, with thunderstorms also possible after 5pm. High near 59. Southwest wind around 14 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 59 °F

    Slight Chance
    Rain then
    Rain

  • Thursday Night

    Thursday Night: Rain before 2am, then a chance of rain and snow. Some thunder is also possible. Low around 26. Southwest wind 11 to 14 mph becoming northwest after midnight. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 26 °F

    Rain then
    Rain/Snow

  • Friday

    Friday: A chance of snow before 8am. Partly sunny, with a high near 29. North wind 11 to 16 mph. Chance of precipitation is 30%.

    High: 29 °F

    Chance Snow
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 16.

    Low: 16 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 31.

    High: 31 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 22.

    Low: 22 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 40.

    High: 40 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 47. South wind 3 to 7 mph.
Tonight
A slight chance of showers before 9pm, then a chance of showers after 2am. Mostly cloudy, with a low around 38. South wind 10 to 14 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Rain, with thunderstorms also possible after 5pm. High near 59. Southwest wind around 14 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Rain before 2am, then a chance of rain and snow. Some thunder is also possible. Low around 26. Southwest wind 11 to 14 mph becoming northwest after midnight. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Friday
A chance of snow before 8am. Partly sunny, with a high near 29. North wind 11 to 16 mph. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 16.
Saturday
Partly sunny, with a high near 31.
Saturday Night
Mostly cloudy, with a low around 22.
Sunday
Mostly sunny, with a high near 40.
Sunday Night
Mostly cloudy, with a low around 31.
Monday
A chance of rain. Mostly cloudy, with a high near 48. Chance of precipitation is 30%.
Monday Night
A chance of rain and snow. Mostly cloudy, with a low around 37. Chance of precipitation is 30%.
Tuesday
A chance of rain and snow. Mostly cloudy, with a high near 49. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sempronius NY
 42.73°N 76.3°W (Elev. 1706 ft)
Last Update:
6:22 am EDT Mar 25, 2026
Forecast Valid:
7am EDT Mar 25, 2026-6pm EDT Mar 31, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation