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.

Fog

39°F

4°C

Humidity 100%
Wind Speed SE 9 mph
Barometer 29.93 in (1014.7 mb)
Dewpoint 39°F (4°C)
Visibility 0.25 mi
Wind Chill33°F (1°C)
Last update 7 Mar 3:56 pm EST
Extended Forecast for

Upper Mongaup NY

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 48. South wind around 7 mph.

    High: 48 °F

    Partly Sunny

  • Tonight

    Tonight: Showers and thunderstorms before 1am, then showers likely. Low around 44. Southwest wind around 8 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 44 °F

    Showers

  • Sunday

    Sunday: Mostly cloudy through mid morning, then gradual clearing, with a high near 59. West wind 7 to 9 mph.

    High: 59 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 35. West wind around 6 mph becoming calm after midnight.

    Low: 35 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 63. Light west wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 63 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 38.

    Low: 38 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of rain. Mostly cloudy, with a high near 66. Chance of precipitation is 40%.

    High: 66 °F

    Chance Rain

Detailed Forecast

This Afternoon
Partly sunny, with a high near 48. South wind around 7 mph.
Tonight
Showers and thunderstorms before 1am, then showers likely. Low around 44. Southwest wind around 8 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Mostly cloudy through mid morning, then gradual clearing, with a high near 59. West wind 7 to 9 mph.
Sunday Night
Mostly clear, with a low around 35. West wind around 6 mph becoming calm after midnight.
Monday
Sunny, with a high near 63. Light west wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Monday Night
Clear, with a low around 38.
Tuesday
Sunny, with a high near 70.
Tuesday Night
Partly cloudy, with a low around 48.
Wednesday
A chance of rain. Mostly cloudy, with a high near 66. Chance of precipitation is 40%.
Wednesday Night
Rain likely, mainly after 1am. Mostly cloudy, with a low around 43. Chance of precipitation is 60%.
Thursday
Rain and snow likely. Mostly cloudy, with a high near 56. Chance of precipitation is 60%.
Thursday Night
Partly cloudy, with a low around 24.
Friday
Partly sunny, with a high near 45.
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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 Mar 7, 2026
Forecast Valid:
4pm EST Mar 7, 2026-6pm EDT Mar 13, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation