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.

Light Snow Fog/Mist

32°F

0°C

Humidity 96%
Wind Speed W 15 G 24 mph
Barometer 29.42 in (996.5 mb)
Dewpoint 31°F (-1°C)
Visibility 2.50 mi
Wind Chill22°F (-6°C)
Last update 17 Mar 2:56 am EDT
Extended Forecast for

Upper Mongaup NY

  • Overnight

    Overnight: A chance of snow showers. Partly cloudy, with a low around 23. West wind around 16 mph, with gusts as high as 29 mph. Chance of precipitation is 30%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 23 °F

    Chance Snow
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 33. West wind around 16 mph, with gusts as high as 34 mph.

    High: 33 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, then gradually becoming clear, with a low around 17. West wind 8 to 10 mph.

    Low: 17 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny, with a high near 35. West wind around 6 mph becoming light and variable.

    High: 35 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 21. South wind around 5 mph becoming calm in the evening.

    Low: 21 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 44.

    High: 44 °F

    Partly Sunny

  • Thursday Night

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

    Low: 29 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 49.

    High: 49 °F

    Partly Sunny

  • Friday Night

    Friday Night: A chance of rain after 8pm, mixing with snow after 2am. Mostly cloudy, with a low around 33. Chance of precipitation is 40%.

    Low: 33 °F

    Chance Rain
    then Chance
    Rain/Snow

Detailed Forecast

Overnight
A chance of snow showers. Partly cloudy, with a low around 23. West wind around 16 mph, with gusts as high as 29 mph. Chance of precipitation is 30%. Total nighttime snow accumulation of less than a half inch possible.
Tuesday
Mostly sunny, with a high near 33. West wind around 16 mph, with gusts as high as 34 mph.
Tuesday Night
Mostly cloudy, then gradually becoming clear, with a low around 17. West wind 8 to 10 mph.
Wednesday
Mostly sunny, with a high near 35. West wind around 6 mph becoming light and variable.
Wednesday Night
Partly cloudy, with a low around 21. South wind around 5 mph becoming calm in the evening.
Thursday
Partly sunny, with a high near 44.
Thursday Night
Mostly cloudy, with a low around 29.
Friday
Partly sunny, with a high near 49.
Friday Night
A chance of rain after 8pm, mixing with snow after 2am. Mostly cloudy, with a low around 33. Chance of precipitation is 40%.
Saturday
A chance of rain and snow before 2pm, then a chance of rain. Partly sunny, with a high near 47. Chance of precipitation is 30%.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 31. Chance of precipitation is 40%.
Sunday
A chance of rain and snow. Partly sunny, with a high near 47. Chance of precipitation is 30%.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 26. Chance of precipitation is 30%.
Monday
Partly sunny, with a high near 41.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Upper Mongaup NY
 41.47°N 74.8°W (Elev. 1224 ft)
Last Update:
2:30 am EDT Mar 17, 2026
Forecast Valid:
3am EDT Mar 17, 2026-6pm EDT Mar 23, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation