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.

Mostly Cloudy

66°F

19°C

Humidity 75%
Wind Speed S 7 G 16 mph
Barometer 29.72 in (1006.3 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 11 Mar 4:56 pm EDT
Extended Forecast for

Upper Mongaup NY

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms. Partly sunny, with a high near 72. South wind around 13 mph, with gusts as high as 26 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 72 °F

    Chance
    Showers

  • Tonight

    Tonight: Showers and thunderstorms before 1am, then showers and possibly a thunderstorm, mainly after 1am. Low around 33. South wind around 11 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 33 °F

    Showers

  • Thursday

    Thursday: Rain showers before 10am, then a chance of sleet between 10am and 11am, then a chance of snow showers after 11am. Temperature falling to around 35 by 9am. Breezy, with a northwest wind 14 to 20 mph, with gusts as high as 36 mph. Chance of precipitation is 80%. Little or no snow and sleet accumulation expected.

    High: 42 °F⇓

    Wintry Mix
    and Breezy
    then Slight
    Chance Snow
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 23. West wind 7 to 13 mph, with gusts as high as 23 mph.

    Low: 23 °F

    Decreasing
    Clouds

  • Friday

    Friday: A slight chance of rain and snow after 2pm. Partly sunny, with a high near 42. Light southwest wind becoming south 9 to 14 mph in the morning. Winds could gust as high as 30 mph. Chance of precipitation is 20%.

    High: 42 °F

    Mostly Sunny
    then Slight
    Chance
    Rain/Snow

  • Friday Night

    Friday Night: A slight chance of rain before 2am. Partly cloudy, with a low around 30. Chance of precipitation is 20%.

    Low: 30 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: Mostly sunny, with a high near 42.

    High: 42 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 24.

    Low: 24 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 41.

    High: 41 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms. Partly sunny, with a high near 72. South wind around 13 mph, with gusts as high as 26 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms before 1am, then showers and possibly a thunderstorm, mainly after 1am. Low around 33. South wind around 11 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
Rain showers before 10am, then a chance of sleet between 10am and 11am, then a chance of snow showers after 11am. Temperature falling to around 35 by 9am. Breezy, with a northwest wind 14 to 20 mph, with gusts as high as 36 mph. Chance of precipitation is 80%. Little or no snow and sleet accumulation expected.
Thursday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 23. West wind 7 to 13 mph, with gusts as high as 23 mph.
Friday
A slight chance of rain and snow after 2pm. Partly sunny, with a high near 42. Light southwest wind becoming south 9 to 14 mph in the morning. Winds could gust as high as 30 mph. Chance of precipitation is 20%.
Friday Night
A slight chance of rain before 2am. Partly cloudy, with a low around 30. Chance of precipitation is 20%.
Saturday
Mostly sunny, with a high near 42.
Saturday Night
Partly cloudy, with a low around 24.
Sunday
Mostly cloudy, with a high near 41.
Sunday Night
Rain, mainly after 2am. Low around 34. Chance of precipitation is 80%.
Monday
Rain. High near 57. Chance of precipitation is 90%.
Monday Night
Rain and snow likely. Mostly cloudy, with a low around 22. Chance of precipitation is 60%.
Tuesday
Partly sunny, with a high near 31.
Tuesday Night
Mostly clear, with a low around 15.
Wednesday
Mostly sunny, with a high near 33.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Upper Mongaup NY
 41.47°N 74.8°W (Elev. 1224 ft)
Last Update:
3:22 pm EDT Mar 11, 2026
Forecast Valid:
5pm EDT Mar 11, 2026-6pm EDT Mar 18, 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