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.

Fair

10°F

-12°C

Humidity 80%
Wind Speed W 5 mph
Barometer 30.51 in (1035.6 mb)
Dewpoint 5°F (-15°C)
Visibility 10.00 mi
Wind Chill1°F (-17°C)
Last update 2 Mar 4:56 am EST
Extended Forecast for

Mongaup Valley NY

  • Today

    Today: Partly sunny, then gradually becoming sunny, with a high near 30. Calm wind.

    High: 30 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 13. Calm wind.

    Low: 13 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Snow before 4pm, then rain and freezing rain, possibly mixed with snow. High near 33. Calm wind becoming southeast around 6 mph in the afternoon. Chance of precipitation is 80%. Little or no ice accumulation expected. New snow accumulation of less than a half inch possible.

    High: 33 °F

    Chance Snow
    then Wintry
    Mix

  • Tuesday Night

    Tuesday Night: Rain and freezing rain, possibly mixed with snow, becoming all rain after 7pm. Low around 31. Calm wind. Chance of precipitation is 90%. Little or no ice accumulation expected. New snow accumulation of less than a half inch possible.

    Low: 31 °F

    Wintry Mix
    then Rain

  • Wednesday

    Wednesday: A slight chance of rain after 1pm. Mostly sunny, with a high near 49. Calm wind. Chance of precipitation is 20%.

    High: 49 °F

    Partly Sunny
    then Slight
    Chance Rain

  • Wednesday Night

    Wednesday Night: A chance of rain. Mostly cloudy, with a low around 35. Chance of precipitation is 50%.

    Low: 35 °F

    Chance Rain

  • Thursday

    Thursday: A chance of rain. Mostly cloudy, with a high near 51. Chance of precipitation is 50%.

    High: 51 °F

    Chance Rain

  • Thursday Night

    Thursday Night: Rain likely. Mostly cloudy, with a low around 37. Chance of precipitation is 70%.

    Low: 37 °F

    Rain Likely

  • Friday

    Friday: A chance of rain before 1pm. Mostly cloudy, with a high near 47. Chance of precipitation is 30%.

    High: 47 °F

    Chance Rain

Detailed Forecast

Today
Partly sunny, then gradually becoming sunny, with a high near 30. Calm wind.
Tonight
Increasing clouds, with a low around 13. Calm wind.
Tuesday
Snow before 4pm, then rain and freezing rain, possibly mixed with snow. High near 33. Calm wind becoming southeast around 6 mph in the afternoon. Chance of precipitation is 80%. Little or no ice accumulation expected. New snow accumulation of less than a half inch possible.
Tuesday Night
Rain and freezing rain, possibly mixed with snow, becoming all rain after 7pm. Low around 31. Calm wind. Chance of precipitation is 90%. Little or no ice accumulation expected. New snow accumulation of less than a half inch possible.
Wednesday
A slight chance of rain after 1pm. Mostly sunny, with a high near 49. Calm wind. Chance of precipitation is 20%.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 35. Chance of precipitation is 50%.
Thursday
A chance of rain. Mostly cloudy, with a high near 51. Chance of precipitation is 50%.
Thursday Night
Rain likely. Mostly cloudy, with a low around 37. Chance of precipitation is 70%.
Friday
A chance of rain before 1pm. Mostly cloudy, with a high near 47. Chance of precipitation is 30%.
Friday Night
A chance of rain after 1am. Mostly cloudy, with a low around 34. Chance of precipitation is 30%.
Saturday
A chance of rain. Mostly cloudy, with a high near 56. Chance of precipitation is 40%.
Saturday Night
Rain likely. Mostly cloudy, with a low around 41. Chance of precipitation is 60%.
Sunday
A chance of rain. Partly sunny, with a high near 60. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mongaup Valley NY
 41.65°N 74.79°W (Elev. 1181 ft)
Last Update:
4:57 am EST Mar 2, 2026
Forecast Valid:
5am EST Mar 2, 2026-6pm EDT Mar 8, 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