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

72°F

22°C

Humidity 91%
Wind Speed W 6 mph
Barometer 30.01 in (1015.4 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 1 Sep 12:56 pm EDT
Extended Forecast for

Swan Lake NY

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 78. West wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Showers

  • Tonight

    Tonight: Showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and midnight. Low around 61. Calm wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 61 °F

    Showers then
    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of showers, mainly before noon. Mostly cloudy, with a high near 72. East wind 3 to 6 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 72 °F

    Chance
    Showers then
    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely before 8pm, then showers and possibly a thunderstorm between 8pm and 5am, then showers after 5am. Low around 62. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 62 °F

    Showers

  • Thursday

    Thursday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 80. Southwest wind 3 to 8 mph. Chance of precipitation is 70%.

    High: 80 °F

    Chance
    Showers then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 8pm. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.

    Low: 59 °F

    Showers
    Likely then
    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 78. West wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and midnight. Low around 61. Calm wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A chance of showers, mainly before noon. Mostly cloudy, with a high near 72. East wind 3 to 6 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Showers and thunderstorms likely before 8pm, then showers and possibly a thunderstorm between 8pm and 5am, then showers after 5am. Low around 62. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 80. Southwest wind 3 to 8 mph. Chance of precipitation is 70%.
Thursday Night
Showers likely and possibly a thunderstorm before 8pm. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.
Friday
Mostly sunny, with a high near 77.
Friday Night
Partly cloudy, with a low around 54.
Saturday
Mostly sunny, with a high near 73.
Saturday Night
Partly cloudy, with a low around 52.
Sunday
Mostly sunny, with a high near 72.
Sunday Night
Mostly clear, with a low around 51.
Labor Day
A chance of showers. Mostly sunny, with a high near 73. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Swan Lake NY
 41.73°N 74.78°W (Elev. 1401 ft)
Last Update:
6:14 am EDT Sep 1, 2026
Forecast Valid:
1pm EDT Sep 1, 2026-6pm EDT Sep 7, 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