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

Monticello, Sullivan County International Airport (KMSV)

Lat: 41.7°NLon: 74.8°WElev: 1404ft.

Fair

37°F

3°C

Humidity 62%
Wind Speed Calm
Barometer 30.40 in (1030.5 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 11 Apr 11:56 pm EDT
Extended Forecast for

Swan Lake NY

  • Overnight

    Overnight: Mostly clear, with a low around 29. Light north wind.

    Low: 29 °F

    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 54. Calm wind becoming south 5 to 9 mph in the afternoon.

    High: 54 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: A slight chance of showers before 2am. Mostly cloudy, with a low around 42. South wind 6 to 8 mph. Chance of precipitation is 20%.

    Low: 42 °F

    Slight Chance
    Showers

  • Monday

    Monday: A chance of showers after 2pm. Mostly cloudy, with a high near 71. Southwest wind 6 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 71 °F

    Partly Sunny
    then Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers before 2am. Mostly cloudy, with a low around 54. West wind 5 to 9 mph. Chance of precipitation is 30%.

    Low: 54 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 77. Chance of precipitation is 30%.

    High: 77 °F

    Partly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 57. Chance of precipitation is 30%.

    Low: 57 °F

    Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers after 2pm. Partly sunny, with a high near 79. Chance of precipitation is 30%.

    High: 79 °F

    Partly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers before 2am. Mostly cloudy, with a low around 58. Chance of precipitation is 40%.

    Low: 58 °F

    Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 29. Light north wind.
Sunday
Increasing clouds, with a high near 54. Calm wind becoming south 5 to 9 mph in the afternoon.
Sunday Night
A slight chance of showers before 2am. Mostly cloudy, with a low around 42. South wind 6 to 8 mph. Chance of precipitation is 20%.
Monday
A chance of showers after 2pm. Mostly cloudy, with a high near 71. Southwest wind 6 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
A chance of showers before 2am. Mostly cloudy, with a low around 54. West wind 5 to 9 mph. Chance of precipitation is 30%.
Tuesday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 77. Chance of precipitation is 30%.
Tuesday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 57. Chance of precipitation is 30%.
Wednesday
A chance of showers after 2pm. Partly sunny, with a high near 79. Chance of precipitation is 30%.
Wednesday Night
A chance of showers before 2am. Mostly cloudy, with a low around 58. Chance of precipitation is 40%.
Thursday
A chance of showers after 2pm. Partly sunny, with a high near 76. Chance of precipitation is 30%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 54. Chance of precipitation is 40%.
Friday
A chance of showers. Partly sunny, with a high near 70. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 51.
Saturday
A chance of showers. Partly sunny, with a high near 70. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Swan Lake NY
 41.76°N 74.8°W (Elev. 1404 ft)
Last Update:
6:28 pm EDT Apr 11, 2026
Forecast Valid:
12am EDT Apr 12, 2026-6pm EDT Apr 18, 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