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

68°F

20°C

Humidity 70%
Wind Speed W 5 mph
Barometer 29.90 in (1011.6 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 11 Aug 9:56 pm EDT
Extended Forecast for

Swan Lake NY

  • Tonight

    Tonight: Mostly cloudy, with a low around 56. Light north wind.

    Low: 56 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Patchy fog between 7am and 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 81. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 81 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers between midnight and 3am. Patchy fog after 3am. Otherwise, partly cloudy, with a low around 58. Calm wind. Chance of precipitation is 20%.

    Low: 58 °F

    Partly Cloudy
    then Slight
    Chance
    Showers and
    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 80. West wind 3 to 7 mph.

    High: 80 °F

    Patchy Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 56. Light northwest wind.

    Low: 56 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 56. Light north wind.
Wednesday
Patchy fog between 7am and 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 81. Calm wind becoming northwest around 6 mph in the afternoon.
Wednesday Night
A slight chance of showers between midnight and 3am. Patchy fog after 3am. Otherwise, partly cloudy, with a low around 58. Calm wind. Chance of precipitation is 20%.
Thursday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 80. West wind 3 to 7 mph.
Thursday Night
Partly cloudy, with a low around 56. Light northwest wind.
Friday
Sunny, with a high near 77.
Friday Night
Mostly clear, with a low around 50.
Saturday
Sunny, with a high near 76.
Saturday Night
Partly cloudy, with a low around 51.
Sunday
A chance of showers after 2pm. Mostly sunny, with a high near 75. Chance of precipitation is 40%.
Sunday Night
Showers likely. Mostly cloudy, with a low around 58. Chance of precipitation is 70%.
Monday
A chance of showers. Mostly cloudy, with a high near 76. Chance of precipitation is 40%.
Monday Night
Partly cloudy, with a low around 56.
Tuesday
Mostly sunny, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Swan Lake NY
 41.75°N 74.77°W (Elev. 1404 ft)
Last Update:
6:33 pm EDT Aug 11, 2026
Forecast Valid:
10pm EDT Aug 11, 2026-6pm EDT Aug 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