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

28°F

-2°C

Humidity 88%
Wind Speed W 12 G 21 mph
Barometer 29.77 in (1009.5 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill18°F (-8°C)
Last update 11 Jan 4:56 pm EST
Extended Forecast for

Mongaup Valley NY

  • Tonight

    Tonight: A slight chance of snow showers between 7pm and 8pm. Mostly cloudy, with a low around 22. Northwest wind 8 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 20%.

    Low: 22 °F

    Slight Chance
    Snow Showers
    then Mostly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 35. West wind around 9 mph.

    High: 35 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 24. West wind 3 to 6 mph.

    Low: 24 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 40. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 40 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers after 1am. Mostly cloudy, with a low around 30. South wind around 6 mph. Chance of precipitation is 20%.

    Low: 30 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers. Cloudy, with a high near 42. Chance of precipitation is 40%.

    High: 42 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of rain before midnight, then rain and snow likely between midnight and 2am, then snow likely after 2am. Cloudy, with a low around 27. Chance of precipitation is 60%.

    Low: 27 °F

    Chance Rain
    then
    Rain/Snow
    Likely

  • Thursday

    Thursday: Snow likely, mainly before 1pm. Mostly cloudy, with a high near 33. Chance of precipitation is 60%.

    High: 33 °F

    Snow Likely

  • Thursday Night

    Thursday Night: A chance of snow showers. Mostly cloudy, with a low around 15. Chance of precipitation is 40%.

    Low: 15 °F

    Chance Snow
    Showers

Detailed Forecast

Tonight
A slight chance of snow showers between 7pm and 8pm. Mostly cloudy, with a low around 22. Northwest wind 8 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 20%.
Monday
Mostly sunny, with a high near 35. West wind around 9 mph.
Monday Night
Partly cloudy, with a low around 24. West wind 3 to 6 mph.
Tuesday
Mostly sunny, with a high near 40. Calm wind becoming southwest around 6 mph in the afternoon.
Tuesday Night
A slight chance of showers after 1am. Mostly cloudy, with a low around 30. South wind around 6 mph. Chance of precipitation is 20%.
Wednesday
A chance of showers. Cloudy, with a high near 42. Chance of precipitation is 40%.
Wednesday Night
A chance of rain before midnight, then rain and snow likely between midnight and 2am, then snow likely after 2am. Cloudy, with a low around 27. Chance of precipitation is 60%.
Thursday
Snow likely, mainly before 1pm. Mostly cloudy, with a high near 33. Chance of precipitation is 60%.
Thursday Night
A chance of snow showers. Mostly cloudy, with a low around 15. Chance of precipitation is 40%.
Friday
Mostly sunny, with a high near 25.
Friday Night
Partly cloudy, with a low around 14.
Saturday
Mostly sunny, with a high near 30.
Saturday Night
Mostly cloudy, with a low around 16.
Sunday
A chance of snow showers. Partly sunny, with a high near 30. Chance of precipitation is 30%.
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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:
3:22 pm EST Jan 11, 2026
Forecast Valid:
5pm EST Jan 11, 2026-6pm EST Jan 18, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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