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

27°F

-3°C

Humidity 100%
Wind Speed Calm
Barometer 30.05 in (1018.9 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 20 Apr 2:56 am EDT
Extended Forecast for

Swan Lake NY

  • Overnight

    Overnight: Partly cloudy, with a low around 27. Calm wind.

    Low: 27 °F

    Partly Cloudy

  • Monday

    Monday: Isolated snow showers before 8am, then isolated snow showers after 1pm. Mostly sunny, with a high near 40. Northwest wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 40 °F

    Mostly Sunny
    then Isolated
    Snow Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 21. Northwest wind around 6 mph becoming calm after midnight.

    Low: 21 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 48. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 48 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of rain showers before 1am, then a chance of rain and snow showers. Mostly cloudy, with a low around 34. South wind 3 to 5 mph. Chance of precipitation is 40%.

    Low: 34 °F

    Chance
    Showers then
    Chance
    Rain/Snow

  • Wednesday

    Wednesday: A chance of showers between 7am and 8am. Partly sunny, with a high near 56. Chance of precipitation is 30%.

    High: 56 °F

    Chance
    Showers then
    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 27. Calm wind.
Monday
Isolated snow showers before 8am, then isolated snow showers after 1pm. Mostly sunny, with a high near 40. Northwest wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Monday Night
Mostly clear, with a low around 21. Northwest wind around 6 mph becoming calm after midnight.
Tuesday
Mostly sunny, with a high near 48. Calm wind becoming southwest around 6 mph in the afternoon.
Tuesday Night
A chance of rain showers before 1am, then a chance of rain and snow showers. Mostly cloudy, with a low around 34. South wind 3 to 5 mph. Chance of precipitation is 40%.
Wednesday
A chance of showers between 7am and 8am. Partly sunny, with a high near 56. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around 36.
Thursday
Mostly sunny, with a high near 62.
Thursday Night
Partly cloudy, with a low around 38.
Friday
Mostly sunny, with a high near 62.
Friday Night
A chance of showers. Partly cloudy, with a low around 39. Chance of precipitation is 30%.
Saturday
A chance of showers. Partly sunny, with a high near 57. Chance of precipitation is 40%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 38. Chance of precipitation is 50%.
Sunday
A chance of showers. Partly sunny, with a high near 56. Chance of precipitation is 40%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Swan Lake NY
 41.76°N 74.8°W (Elev. 1404 ft)
Last Update:
2:30 am EDT Apr 20, 2026
Forecast Valid:
3am EDT Apr 20, 2026-6pm EDT Apr 26, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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