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.

Light Rain Fog/Mist

36°F

2°C

Humidity 97%
Wind Speed E 3 mph
Barometer 29.86 in (1012.4 mb)
Dewpoint 35°F (2°C)
Visibility 1.75 mi
Last update 18 Feb 9:56 am EST
Extended Forecast for

Upper Mongaup NY

  • Today

    Today: Showers. High near 39. Light east wind. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 39 °F

    Showers

  • Tonight

    Tonight: A chance of rain showers before 11pm, then a slight chance of freezing rain after 4am. Cloudy, with a low around 29. Calm wind. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 29 °F

    Chance
    Showers then
    Cloudy

  • Thursday

    Thursday: A slight chance of freezing rain before 1pm, then a slight chance of snow showers between 1pm and 4pm, then a slight chance of rain and snow showers after 4pm. Mostly cloudy, with a high near 36. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 36 °F

    Cloudy then
    Slight Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: A chance of rain showers, snow showers, and freezing rain before 7pm, then snow showers and freezing rain likely. Cloudy, with a low around 28. East wind 3 to 6 mph. Chance of precipitation is 60%. New ice accumulation of less than a 0.1 of an inch possible. New snow accumulation of less than a half inch possible.

    Low: 28 °F

    Chance Wintry
    Mix then
    Wintry Mix
    Likely

  • Friday

    Friday: Snow showers and freezing rain before 10am, then rain or freezing rain between 10am and 1pm, then rain showers after 1pm. High near 37. East wind 5 to 7 mph. Chance of precipitation is 90%.

    High: 37 °F

    Wintry Mix

  • Friday Night

    Friday Night: A chance of showers, mainly before 1am. Mostly cloudy, with a low around 30. Chance of precipitation is 30%.

    Low: 30 °F

    Chance
    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 40.

    High: 40 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of snow showers after 1am. Mostly cloudy, with a low around 24. Chance of precipitation is 30%.

    Low: 24 °F

    Mostly Cloudy
    then Chance
    Snow Showers

  • Sunday

    Sunday: A chance of snow showers. Mostly cloudy, with a high near 31. Chance of precipitation is 50%.

    High: 31 °F

    Chance Snow
    Showers

Detailed Forecast

Today
Showers. High near 39. Light east wind. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tonight
A chance of rain showers before 11pm, then a slight chance of freezing rain after 4am. Cloudy, with a low around 29. Calm wind. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
A slight chance of freezing rain before 1pm, then a slight chance of snow showers between 1pm and 4pm, then a slight chance of rain and snow showers after 4pm. Mostly cloudy, with a high near 36. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 20%.
Thursday Night
A chance of rain showers, snow showers, and freezing rain before 7pm, then snow showers and freezing rain likely. Cloudy, with a low around 28. East wind 3 to 6 mph. Chance of precipitation is 60%. New ice accumulation of less than a 0.1 of an inch possible. New snow accumulation of less than a half inch possible.
Friday
Snow showers and freezing rain before 10am, then rain or freezing rain between 10am and 1pm, then rain showers after 1pm. High near 37. East wind 5 to 7 mph. Chance of precipitation is 90%.
Friday Night
A chance of showers, mainly before 1am. Mostly cloudy, with a low around 30. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 40.
Saturday Night
A chance of snow showers after 1am. Mostly cloudy, with a low around 24. Chance of precipitation is 30%.
Sunday
A chance of snow showers. Mostly cloudy, with a high near 31. Chance of precipitation is 50%.
Sunday Night
A chance of snow showers. Mostly cloudy, with a low around 22. Chance of precipitation is 50%.
Monday
A chance of snow showers. Mostly cloudy, with a high near 32. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 13.
Tuesday
Mostly sunny, with a high near 24.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Upper Mongaup NY
 41.47°N 74.8°W (Elev. 1224 ft)
Last Update:
4:59 am EST Feb 18, 2026
Forecast Valid:
10am EST Feb 18, 2026-6pm EST Feb 24, 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