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

20°F

-7°C

Humidity 89%
Wind Speed Calm
Barometer 30.01 in (1018.2 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Last update 14 Feb 5:56 am EST
Extended Forecast for

Upper Mongaup NY

  • Today

    Today: Partly sunny, with a high near 38. Calm wind becoming west 5 to 8 mph in the morning.

    High: 38 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 17. Light northwest wind.

    Low: 17 °F

    Partly Cloudy

  • Sunday

    Sunday: Increasing clouds, with a high near 36. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 36 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: A slight chance of snow. Mostly cloudy, with a low around 23. Light southeast wind. Chance of precipitation is 20%.

    Low: 23 °F

    Slight Chance
    Snow

  • Washington's Birthday

    Washington's Birthday: Partly sunny, with a high near 40. Calm wind.

    High: 40 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 45.

    High: 45 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Rain likely, mainly after 1pm. Mostly cloudy, with a high near 40. Chance of precipitation is 70%.

    High: 40 °F

    Rain Likely

Detailed Forecast

Today
Partly sunny, with a high near 38. Calm wind becoming west 5 to 8 mph in the morning.
Tonight
Partly cloudy, with a low around 17. Light northwest wind.
Sunday
Increasing clouds, with a high near 36. Calm wind becoming southeast around 5 mph in the afternoon.
Sunday Night
A slight chance of snow. Mostly cloudy, with a low around 23. Light southeast wind. Chance of precipitation is 20%.
Washington's Birthday
Partly sunny, with a high near 40. Calm wind.
Monday Night
Mostly cloudy, with a low around 26.
Tuesday
Partly sunny, with a high near 45.
Tuesday Night
Mostly cloudy, with a low around 30.
Wednesday
Rain likely, mainly after 1pm. Mostly cloudy, with a high near 40. Chance of precipitation is 70%.
Wednesday Night
A chance of rain and snow. Mostly cloudy, with a low around 30. Chance of precipitation is 50%.
Thursday
A chance of rain. Mostly cloudy, with a high near 41. Chance of precipitation is 30%.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 22. Chance of precipitation is 40%.
Friday
A chance of rain and snow. Mostly cloudy, with a high near 35. Chance of precipitation is 50%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Upper Mongaup NY
 41.47°N 74.8°W (Elev. 1224 ft)
Last Update:
6:19 am EST Feb 14, 2026
Forecast Valid:
6am EST Feb 14, 2026-6pm EST Feb 20, 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