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

72°F

22°C

Humidity 76%
Wind Speed S 8 mph
Barometer 30.07 in (1017.8 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 27 Jun 2:56 pm EDT
Extended Forecast for

Swan Lake NY

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms, mainly after 5pm. Mostly cloudy, with a high near 77. Light southwest wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Chance
    Showers

  • Tonight

    Tonight: A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 11pm. Patchy fog between midnight and 2am. Otherwise, mostly cloudy, with a low around 59. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 59 °F

    Chance
    Showers then
    Patchy Fog

  • Sunday

    Sunday: A slight chance of showers between noon and 2pm, then a chance of showers and thunderstorms after 2pm. Patchy fog between 8am and 9am. Otherwise, partly sunny, with a high near 81. Calm wind. Chance of precipitation is 40%.

    High: 81 °F

    Patchy Fog
    then Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 58. Calm wind.

    Low: 58 °F

    Partly Cloudy

  • Monday

    Monday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 85. Calm wind.

    High: 85 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 87. Chance of precipitation is 30%.

    High: 87 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 66. Chance of precipitation is 30%.

    Low: 66 °F

    Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny and hot, with a high near 93.

    High: 93 °F

    Hot

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms, mainly after 5pm. Mostly cloudy, with a high near 77. Light southwest wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 11pm. Patchy fog between midnight and 2am. Otherwise, mostly cloudy, with a low around 59. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A slight chance of showers between noon and 2pm, then a chance of showers and thunderstorms after 2pm. Patchy fog between 8am and 9am. Otherwise, partly sunny, with a high near 81. Calm wind. Chance of precipitation is 40%.
Sunday Night
Partly cloudy, with a low around 58. Calm wind.
Monday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 85. Calm wind.
Monday Night
Partly cloudy, with a low around 62.
Tuesday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 87. Chance of precipitation is 30%.
Tuesday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 66. Chance of precipitation is 30%.
Wednesday
Mostly sunny and hot, with a high near 93.
Wednesday Night
Mostly clear, with a low around 70.
Thursday
Sunny and hot, with a high near 95.
Thursday Night
Mostly clear, with a low around 70.
Friday
A chance of showers and thunderstorms. Mostly sunny and hot, with a high near 92. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Swan Lake NY
 41.76°N 74.8°W (Elev. 1404 ft)
Last Update:
2:30 pm EDT Jun 27, 2026
Forecast Valid:
3pm EDT Jun 27, 2026-6pm EDT Jul 3, 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