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

Hazardous Weather Conditions

Current conditions at

Monticello, Sullivan County International Airport (KMSV)

Lat: 41.7°NLon: 74.8°WElev: 1404ft.

Mostly Cloudy

63°F

17°C

Humidity 84%
Wind Speed Calm
Barometer 30.09 in (1018.4 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 26 Aug 10:56 pm EDT
Extended Forecast for

Swan Lake NY

  • Overnight

    Overnight: Mostly cloudy, with a low around 59. Calm wind.

    Low: 59 °F

    Mostly Cloudy

  • Thursday

    Thursday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 5pm. High near 76. South wind 3 to 7 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 76 °F

    Showers
    Likely then
    T-storms

  • Thursday Night

    Thursday Night: Showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am. Low around 60. Light and variable wind. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 60 °F

    T-storms then
    Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 79. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 79 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 54. Light northwest wind.

    Low: 54 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 61.

    Low: 61 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 59. Calm wind.
Thursday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 5pm. High near 76. South wind 3 to 7 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
Showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am. Low around 60. Light and variable wind. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Mostly sunny, with a high near 79. Calm wind becoming northwest around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 54. Light northwest wind.
Saturday
Sunny, with a high near 78.
Saturday Night
Partly cloudy, with a low around 55.
Sunday
Mostly sunny, with a high near 80.
Sunday Night
Mostly cloudy, with a low around 61.
Monday
A chance of showers after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 30%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 61. Chance of precipitation is 30%.
Tuesday
A chance of showers. Partly sunny, with a high near 79. Chance of precipitation is 50%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 61. Chance of precipitation is 50%.
Wednesday
A chance of showers. Mostly cloudy, with a high near 77. Chance of precipitation is 50%.
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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:
11:28 pm EDT Aug 26, 2026
Forecast Valid:
12am EDT Aug 27, 2026-6pm EDT Sep 2, 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