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

73°F

23°C

Humidity 50%
Wind Speed NW 8 mph
Barometer 29.90 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 10 Sep 5:15 pm EDT
Extended Forecast for

Mc Lean NY

  • Tonight

    Tonight: Areas of fog after 3am. Otherwise, partly cloudy, with a low around 51. Northwest wind 5 to 9 mph becoming calm in the evening.

    Low: 51 °F

    Mostly Cloudy
    then Areas
    Fog

  • Friday

    Friday: Areas of fog before 9am. Otherwise, sunny, with a high near 70. Calm wind becoming northwest 5 to 7 mph in the morning.

    High: 70 °F

    Areas Fog
    then Sunny

  • Friday Night

    Friday Night: Areas of fog after 1am. Otherwise, mostly clear, with a low around 48. Calm wind.

    Low: 48 °F

    Clear then
    Areas Fog

  • Saturday

    Saturday: A chance of showers after 2pm. Patchy fog before 7am. Otherwise, mostly sunny, with a high near 75. South wind 5 to 11 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 75 °F

    Patchy Fog
    then Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 62. South wind 6 to 9 mph. Chance of precipitation is 60%.

    Low: 62 °F

    Showers
    Likely

  • Sunday

    Sunday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 77. Chance of precipitation is 50%.

    High: 77 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers before 2am. Mostly cloudy, with a low around 54. Chance of precipitation is 30%.

    Low: 54 °F

    Chance
    Showers

  • Monday

    Monday: Partly sunny, with a high near 66.

    High: 66 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

Detailed Forecast

Tonight
Areas of fog after 3am. Otherwise, partly cloudy, with a low around 51. Northwest wind 5 to 9 mph becoming calm in the evening.
Friday
Areas of fog before 9am. Otherwise, sunny, with a high near 70. Calm wind becoming northwest 5 to 7 mph in the morning.
Friday Night
Areas of fog after 1am. Otherwise, mostly clear, with a low around 48. Calm wind.
Saturday
A chance of showers after 2pm. Patchy fog before 7am. Otherwise, mostly sunny, with a high near 75. South wind 5 to 11 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Showers likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 62. South wind 6 to 9 mph. Chance of precipitation is 60%.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 77. Chance of precipitation is 50%.
Sunday Night
A chance of showers before 2am. Mostly cloudy, with a low around 54. Chance of precipitation is 30%.
Monday
Partly sunny, with a high near 66.
Monday Night
Partly cloudy, with a low around 48.
Tuesday
Mostly sunny, with a high near 73.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 58. Chance of precipitation is 50%.
Wednesday
A chance of showers. Partly sunny, with a high near 74. Chance of precipitation is 40%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 57. Chance of precipitation is 30%.
Thursday
A chance of showers. Mostly cloudy, with a high near 73. Chance of precipitation is 50%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mc Lean NY
 42.55°N 76.28°W (Elev. 1158 ft)
Last Update:
2:30 pm EDT Sep 10, 2026
Forecast Valid:
5pm EDT Sep 10, 2026-6pm EDT Sep 17, 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