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

35°F

2°C

Humidity 100%
Wind Speed E 10 mph
Barometer 30.22 in (1024.8 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 5 Mar 10:56 pm EST
Extended Forecast for

Upper Mongaup NY

Winter Weather Advisory until March 6, 10:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory until March 6, 10:00am

    NOW until 10:00am Fri

    Winter Weather Advisory

  • Tonight

    Low: 32 °F

    Rain and
    Areas Fog

  • Friday

    Friday: A chance of rain, mainly before 7am. Patchy fog before noon. Otherwise, mostly cloudy, with a high near 39. East wind around 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 39 °F

    Chance Rain
    and Patchy
    Fog then
    Mostly Cloudy

  • Friday Night

    Friday Night: A chance of rain showers before 4am, then a chance of rain and snow showers. Cloudy, with a low around 32. Calm wind. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 32 °F

    Chance
    Showers then
    Chance
    Rain/Snow

  • Saturday

    Saturday: Mostly cloudy, with a high near 53. South wind 3 to 7 mph.

    High: 53 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Showers, mainly before 1am. Low around 44. Southwest wind around 8 mph. Chance of precipitation is 80%.

    Low: 44 °F

    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 55.

    High: 55 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

Detailed Forecast

Tonight
Rain, mainly before 4am. Areas of fog. Low around 32. East wind around 7 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
A chance of rain, mainly before 7am. Patchy fog before noon. Otherwise, mostly cloudy, with a high near 39. East wind around 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A chance of rain showers before 4am, then a chance of rain and snow showers. Cloudy, with a low around 32. Calm wind. Chance of precipitation is 30%. Little or no snow accumulation expected.
Saturday
Mostly cloudy, with a high near 53. South wind 3 to 7 mph.
Saturday Night
Showers, mainly before 1am. Low around 44. Southwest wind around 8 mph. Chance of precipitation is 80%.
Sunday
Mostly sunny, with a high near 55.
Sunday Night
Mostly clear, with a low around 35.
Monday
Sunny, with a high near 63.
Monday Night
Mostly clear, with a low around 42.
Tuesday
Mostly sunny, with a high near 65.
Tuesday Night
A chance of showers. Partly cloudy, with a low around 47. Chance of precipitation is 30%.
Wednesday
A chance of showers. Mostly cloudy, with a high near 67. Chance of precipitation is 50%.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 37. Chance of precipitation is 60%.
Thursday
A chance of rain and snow showers. Partly sunny, with a high near 47. Chance of precipitation is 40%.
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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:
6:06 pm EST Mar 5, 2026
Forecast Valid:
11pm EST Mar 5, 2026-6pm EDT Mar 12, 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