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.

Fair

59°F

15°C

Humidity 31%
Wind Speed W 9 G 16 mph
Barometer 30.03 in (1017.1 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 9 Mar 11:56 am EDT
Extended Forecast for

Upper Mongaup NY

  • This Afternoon

    This Afternoon: Sunny, with a high near 63. Southwest wind 6 to 9 mph.

    High: 63 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 39. Southwest wind around 5 mph becoming calm in the evening.

    Low: 39 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 69. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 69 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 48. Light southwest wind.

    Low: 48 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Rain likely, mainly after 2pm. Mostly cloudy, with a high near 66. Light southeast wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 60%.

    High: 66 °F

    Chance Rain
    then Rain
    Likely

  • Wednesday Night

    Wednesday Night: Rain, mainly before 2am, then showers likely after 2am. Low around 40. Chance of precipitation is 80%.

    Low: 40 °F

    Rain

  • Thursday

    Thursday: Showers likely, mainly before 8am. Mostly cloudy, with a high near 44. Chance of precipitation is 60%.

    High: 44 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 23.

    Low: 23 °F

    Mostly Clear

  • Friday

    Friday: A chance of snow after 2pm. Partly sunny, with a high near 41. Chance of precipitation is 30%.

    High: 41 °F

    Partly Sunny
    then Chance
    Snow

Detailed Forecast

This Afternoon
Sunny, with a high near 63. Southwest wind 6 to 9 mph.
Tonight
Clear, with a low around 39. Southwest wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 69. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 48. Light southwest wind.
Wednesday
Rain likely, mainly after 2pm. Mostly cloudy, with a high near 66. Light southeast wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 60%.
Wednesday Night
Rain, mainly before 2am, then showers likely after 2am. Low around 40. Chance of precipitation is 80%.
Thursday
Showers likely, mainly before 8am. Mostly cloudy, with a high near 44. Chance of precipitation is 60%.
Thursday Night
Mostly clear, with a low around 23.
Friday
A chance of snow after 2pm. Partly sunny, with a high near 41. Chance of precipitation is 30%.
Friday Night
A chance of rain and snow before 2am. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.
Saturday
Partly sunny, with a high near 42.
Saturday Night
Mostly cloudy, with a low around 25.
Sunday
A chance of rain and snow. Cloudy, with a high near 46. Chance of precipitation is 40%.
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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:
11:27 am EDT Mar 9, 2026
Forecast Valid:
12pm EDT Mar 9, 2026-6pm EDT Mar 15, 2026
 
Forecast Discussion
 
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Additional Resources

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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