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

47°F

8°C

Humidity 97%
Wind Speed SE 3 mph
Barometer 29.66 in (1005.2 mb)
Dewpoint 46°F (8°C)
Visibility 9.00 mi
Last update 22 Mar 4:56 pm EDT
Extended Forecast for

Mongaup Valley NY

  • This Afternoon

    This Afternoon: Showers likely. Mostly cloudy, with a high near 58. Light northwest wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 58 °F

    Showers
    Likely

  • Tonight

    Tonight: Showers. Low around 34. Light northwest wind. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 34 °F

    Showers

  • Monday

    Monday: A chance of rain and snow showers before 8am, then a slight chance of drizzle between 8am and 9am. Cloudy, then gradually becoming mostly sunny, with a high near 42. Northwest wind 6 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 42 °F

    Chance
    Rain/Snow
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 23. Northwest wind 5 to 11 mph, with gusts as high as 21 mph.

    Low: 23 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 45. West wind 3 to 5 mph.

    High: 45 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 51.

    High: 51 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 56.

    High: 56 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Showers likely. Mostly cloudy, with a high near 58. Light northwest wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Showers. Low around 34. Light northwest wind. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Monday
A chance of rain and snow showers before 8am, then a slight chance of drizzle between 8am and 9am. Cloudy, then gradually becoming mostly sunny, with a high near 42. Northwest wind 6 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Monday Night
Partly cloudy, with a low around 23. Northwest wind 5 to 11 mph, with gusts as high as 21 mph.
Tuesday
Sunny, with a high near 45. West wind 3 to 5 mph.
Tuesday Night
Mostly cloudy, with a low around 27.
Wednesday
Partly sunny, with a high near 51.
Wednesday Night
Mostly cloudy, with a low around 32.
Thursday
Mostly cloudy, with a high near 56.
Thursday Night
Rain likely after 8pm. Mostly cloudy, with a low around 34. Chance of precipitation is 70%.
Friday
Partly sunny, with a high near 45.
Friday Night
Partly cloudy, with a low around 18.
Saturday
Mostly sunny, with a high near 38.
Saturday Night
Partly cloudy, with a low around 21.
Sunday
Mostly sunny, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mongaup Valley NY
 41.65°N 74.79°W (Elev. 1181 ft)
Last Update:
4:04 pm EDT Mar 22, 2026
Forecast Valid:
5pm EDT Mar 22, 2026-6pm EDT Mar 29, 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