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.

Overcast

64°F

18°C

Humidity 73%
Wind Speed NW 15 G 22 mph
Barometer 29.87 in (1011.4 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 12 Oct 1:56 pm EDT
Extended Forecast for

Swan Lake NY

  • Columbus Day

    Columbus Day: Partly sunny, with a high near 69. Northwest wind around 8 mph.

    High: 69 °F

    Partly Sunny

  • Tonight

    Tonight: Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 51. West wind around 5 mph becoming calm in the evening.

    Low: 51 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy dense fog between 8am and 10am. Otherwise, partly sunny, with a high near 72. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 72 °F

    Patchy Dense
    Fog then
    Partly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 61. Southwest wind around 6 mph. Chance of precipitation is 20%.

    Low: 61 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers after 2pm. Partly sunny, with a high near 70. West wind 7 to 9 mph. Chance of precipitation is 20%.

    High: 70 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Showers likely after 2am. Mostly cloudy, with a low around 44. Chance of precipitation is 70%.

    Low: 44 °F

    Mostly Cloudy
    then Showers
    Likely

  • Friday

    Friday: Showers. High near 62. Chance of precipitation is 90%.

    High: 62 °F

    Showers

Detailed Forecast

Columbus Day
Partly sunny, with a high near 69. Northwest wind around 8 mph.
Tonight
Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 51. West wind around 5 mph becoming calm in the evening.
Tuesday
Patchy dense fog between 8am and 10am. Otherwise, partly sunny, with a high near 72. Calm wind becoming south 5 to 8 mph in the afternoon.
Tuesday Night
A slight chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 61. Southwest wind around 6 mph. Chance of precipitation is 20%.
Wednesday
A slight chance of showers after 2pm. Partly sunny, with a high near 70. West wind 7 to 9 mph. Chance of precipitation is 20%.
Wednesday Night
Mostly cloudy, with a low around 45.
Thursday
Mostly sunny, with a high near 62.
Thursday Night
Showers likely after 2am. Mostly cloudy, with a low around 44. Chance of precipitation is 70%.
Friday
Showers. High near 62. Chance of precipitation is 90%.
Friday Night
Showers likely, mainly before 8pm. Mostly cloudy, with a low around 34. Chance of precipitation is 60%.
Saturday
Mostly sunny, with a high near 45.
Saturday Night
Mostly clear, with a low around 29.
Sunday
Sunny, with a high near 52.
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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:
2:07 pm EDT Oct 12, 2026
Forecast Valid:
2pm EDT Oct 12, 2026-6pm EDT Oct 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