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.

Light Rain Fog/Mist

46°F

8°C

Humidity 100%
Wind Speed Calm
Barometer 29.70 in (1006.4 mb)
Dewpoint 46°F (8°C)
Visibility 6.00 mi
Last update 22 Mar 3:56 pm EDT
Extended Forecast for

Upper Mongaup NY

  • This Afternoon

    This Afternoon: Showers likely, mainly after 5pm. Mostly cloudy, with a high near 60. Light west wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 60 °F

    Showers
    Likely

  • Tonight

    Tonight: Showers, mainly before 5am. Low around 35. Northwest wind around 5 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 35 °F

    Showers

  • Monday

    Monday: A chance of rain and snow showers before 9am. Cloudy, then gradually becoming mostly sunny, with a high near 42. Northwest wind 7 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 42 °F

    Chance
    Rain/Snow
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 25. Northwest wind 6 to 13 mph, with gusts as high as 23 mph.

    Low: 25 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 46. Northwest wind 5 to 7 mph becoming west in the afternoon.

    High: 46 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 51.

    High: 51 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 56.

    High: 56 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Showers likely, mainly after 5pm. Mostly cloudy, with a high near 60. Light west wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Showers, mainly before 5am. Low around 35. Northwest wind around 5 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Monday
A chance of rain and snow showers before 9am. Cloudy, then gradually becoming mostly sunny, with a high near 42. Northwest wind 7 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Monday Night
Partly cloudy, with a low around 25. Northwest wind 6 to 13 mph, with gusts as high as 23 mph.
Tuesday
Sunny, with a high near 46. Northwest wind 5 to 7 mph becoming west in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 29.
Wednesday
Partly sunny, with a high near 51.
Wednesday Night
Mostly cloudy, with a low around 33.
Thursday
Partly sunny, with a high near 56.
Thursday Night
Rain likely after 8pm. Mostly cloudy, with a low around 36. Chance of precipitation is 70%.
Friday
Partly sunny, with a high near 46.
Friday Night
Partly cloudy, with a low around 19.
Saturday
Mostly sunny, with a high near 39.
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:
4:04 pm EDT Mar 22, 2026
Forecast Valid:
4pm EDT Mar 22, 2026-6pm EDT Mar 28, 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