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

28°F

-2°C

Humidity 88%
Wind Speed W 5 mph
Barometer 30.12 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 6 Nov 10:56 pm EST
Extended Forecast for

Upper Mongaup NY

  • Tonight

    Tonight: Partly cloudy, with a low around 28. Calm wind.

    Low: 28 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 53. Light south wind increasing to 9 to 14 mph in the morning. Winds could gust as high as 28 mph.

    High: 53 °F

    Partly Sunny

  • Friday Night

    Friday Night: Showers likely, mainly between 7pm and 1am. Mostly cloudy, with a low around 43. Southwest wind 6 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 43 °F

    Showers
    Likely

  • Saturday

    Saturday: Mostly sunny, with a high near 58. West wind around 7 mph.

    High: 58 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers after 1am. Mostly cloudy, with a low around 38. Calm wind. Chance of precipitation is 20%.

    Low: 38 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: Showers likely, then showers and possibly a thunderstorm after 1pm. High near 55. Chance of precipitation is 80%.

    High: 55 °F

    Showers

  • Sunday Night

    Sunday Night: Showers likely, mainly before 1am. Mostly cloudy, with a low around 33. Chance of precipitation is 60%.

    Low: 33 °F

    Showers
    Likely

  • Monday

    Monday: Partly sunny, with a high near 43.

    High: 43 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 28. Calm wind.
Friday
Partly sunny, with a high near 53. Light south wind increasing to 9 to 14 mph in the morning. Winds could gust as high as 28 mph.
Friday Night
Showers likely, mainly between 7pm and 1am. Mostly cloudy, with a low around 43. Southwest wind 6 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Mostly sunny, with a high near 58. West wind around 7 mph.
Saturday Night
A slight chance of showers after 1am. Mostly cloudy, with a low around 38. Calm wind. Chance of precipitation is 20%.
Sunday
Showers likely, then showers and possibly a thunderstorm after 1pm. High near 55. Chance of precipitation is 80%.
Sunday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 33. Chance of precipitation is 60%.
Monday
Partly sunny, with a high near 43.
Monday Night
Partly cloudy, with a low around 25.
Veterans Day
Partly sunny, with a high near 39.
Tuesday Night
Mostly cloudy, with a low around 28.
Wednesday
Mostly cloudy, with a high near 46.
Wednesday Night
Mostly cloudy, with a low around 34.
Thursday
Partly sunny, with a high near 46.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Upper Mongaup NY
 41.47°N 74.8°W (Elev. 1224 ft)
Last Update:
3:22 pm EST Nov 6, 2025
Forecast Valid:
11pm EST Nov 6, 2025-6pm EST Nov 13, 2025
 
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Additional Resources

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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