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.

Fair

32°F

0°C

Humidity 96%
Wind Speed Calm
Barometer 29.96 in (1015.2 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 9 Mar 3:56 am EDT
Extended Forecast for

Mongaup Valley NY

  • Today

    Today: Sunny, with a high near 63. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 63 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 36. Light southwest wind.

    Low: 36 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 69. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 69 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 46. Calm wind.

    Low: 46 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Rain likely, mainly after 2pm. Mostly cloudy, with a high near 66. Calm wind becoming south 5 to 9 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 60%.

    High: 66 °F

    Chance Rain
    then Rain
    Likely

  • Wednesday Night

    Wednesday Night: Rain, mainly before 2am, then showers likely after 2am. Low around 38. Chance of precipitation is 90%.

    Low: 38 °F

    Rain

  • Thursday

    Thursday: Showers likely, mainly before 8am. Mostly cloudy, with a high near 43. Chance of precipitation is 60%.

    High: 43 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 22.

    Low: 22 °F

    Mostly Clear

  • Friday

    Friday: A chance of rain and snow after 2pm. Partly sunny, with a high near 40. Chance of precipitation is 30%.

    High: 40 °F

    Partly Sunny
    then Chance
    Rain/Snow

Detailed Forecast

Today
Sunny, with a high near 63. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Tonight
Clear, with a low around 36. Light southwest wind.
Tuesday
Sunny, with a high near 69. Calm wind becoming southwest around 6 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 46. Calm wind.
Wednesday
Rain likely, mainly after 2pm. Mostly cloudy, with a high near 66. Calm wind becoming south 5 to 9 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 60%.
Wednesday Night
Rain, mainly before 2am, then showers likely after 2am. Low around 38. Chance of precipitation is 90%.
Thursday
Showers likely, mainly before 8am. Mostly cloudy, with a high near 43. Chance of precipitation is 60%.
Thursday Night
Mostly clear, with a low around 22.
Friday
A chance of rain and snow after 2pm. Partly sunny, with a high near 40. Chance of precipitation is 30%.
Friday Night
A chance of rain and snow before 2am. Mostly cloudy, with a low around 27. Chance of precipitation is 40%.
Saturday
Partly sunny, with a high near 41.
Saturday Night
Mostly cloudy, with a low around 24.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 46. Chance of precipitation is 40%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mongaup Valley NY
 41.65°N 74.79°W (Elev. 1181 ft)
Last Update:
3:13 am EDT Mar 9, 2026
Forecast Valid:
4am EDT Mar 9, 2026-6pm EDT Mar 15, 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