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.

Partly Cloudy

33°F

1°C

Humidity 33%
Wind Speed NW 14 mph
Barometer 30.37 in (1030.3 mb)
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Wind Chill23°F (-5°C)
Last update 28 Mar 11:56 am EDT
Extended Forecast for

Mongaup Valley NY

  • This Afternoon

    This Afternoon: Scattered sprinkles and flurries between 2pm and 3pm. Mostly sunny, with a high near 36. Northwest wind around 14 mph, with gusts as high as 24 mph.

    High: 36 °F

    Scattered
    Sprinkles/Flurries

  • Tonight

    Tonight: Partly cloudy, with a low around 20. Northwest wind around 6 mph becoming calm in the evening.

    Low: 20 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 48. Calm wind becoming southwest 5 to 9 mph in the morning.

    High: 48 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 33. Southwest wind around 5 mph.

    Low: 33 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 56. West wind 3 to 8 mph.

    High: 56 °F

    Partly Sunny

  • Monday Night

    Monday Night: A chance of showers, mainly after 2am. Mostly cloudy, with a low around 42. Chance of precipitation is 40%.

    Low: 42 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers before 2pm. Mostly cloudy, with a high near 67. Chance of precipitation is 40%.

    High: 67 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers after 2am. Mostly cloudy, with a low around 53. Chance of precipitation is 30%.

    Low: 53 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: Showers, mainly after 2pm. High near 69. Chance of precipitation is 80%.

    High: 69 °F

    Chance
    Showers then
    Showers

Detailed Forecast

This Afternoon
Scattered sprinkles and flurries between 2pm and 3pm. Mostly sunny, with a high near 36. Northwest wind around 14 mph, with gusts as high as 24 mph.
Tonight
Partly cloudy, with a low around 20. Northwest wind around 6 mph becoming calm in the evening.
Sunday
Partly sunny, with a high near 48. Calm wind becoming southwest 5 to 9 mph in the morning.
Sunday Night
Mostly cloudy, with a low around 33. Southwest wind around 5 mph.
Monday
Partly sunny, with a high near 56. West wind 3 to 8 mph.
Monday Night
A chance of showers, mainly after 2am. Mostly cloudy, with a low around 42. Chance of precipitation is 40%.
Tuesday
A chance of showers before 2pm. Mostly cloudy, with a high near 67. Chance of precipitation is 40%.
Tuesday Night
A chance of showers after 2am. Mostly cloudy, with a low around 53. Chance of precipitation is 30%.
Wednesday
Showers, mainly after 2pm. High near 69. Chance of precipitation is 80%.
Wednesday Night
Showers, mainly before 8pm. Low around 34. Chance of precipitation is 80%.
Thursday
A chance of showers. Mostly cloudy, with a high near 49. Chance of precipitation is 30%.
Thursday Night
A chance of rain showers, snow showers, and freezing rain. Mostly cloudy, with a low around 30. Chance of precipitation is 50%.
Friday
Rain showers and snow showers likely, possibly mixed with freezing rain. Mostly cloudy, with a high near 42. Chance of precipitation is 60%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mongaup Valley NY
 41.65°N 74.79°W (Elev. 1181 ft)
Last Update:
11:27 am EDT Mar 28, 2026
Forecast Valid:
12pm EDT Mar 28, 2026-6pm EDT Apr 3, 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