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.

Mostly Cloudy

33°F

1°C

Humidity 35%
Wind Speed W 14 G 29 mph
Barometer 30.37 in (1030.2 mb)
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Wind Chill23°F (-5°C)
Last update 28 Mar 3:56 pm EDT
Extended Forecast for

Mongaup Valley NY

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 36. Northwest wind 11 to 13 mph, with gusts as high as 24 mph.

    High: 36 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 20. Northwest wind around 6 mph becoming calm in the evening.

    Low: 20 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 50. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 50 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 34. South wind around 5 mph.

    Low: 34 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 57. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 57 °F

    Partly Sunny

  • Monday Night

    Monday Night: A chance of showers. Mostly cloudy, with a low around 45. Chance of precipitation is 40%.

    Low: 45 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers before 2pm. Mostly cloudy, with a high near 68. Chance of precipitation is 30%.

    High: 68 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of rain after 2am. Mostly cloudy, with a low around 53. Chance of precipitation is 40%.

    Low: 53 °F

    Mostly Cloudy
    then Chance
    Rain

  • Wednesday

    Wednesday: Rain likely, mainly after 2pm. Mostly cloudy, with a high near 65. Chance of precipitation is 60%.

    High: 65 °F

    Rain Likely

Detailed Forecast

This Afternoon
Partly sunny, with a high near 36. Northwest wind 11 to 13 mph, with gusts as high as 24 mph.
Tonight
Partly cloudy, with a low around 20. Northwest wind around 6 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 50. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Sunday Night
Partly cloudy, with a low around 34. South wind around 5 mph.
Monday
Partly sunny, with a high near 57. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
A chance of showers. Mostly cloudy, with a low around 45. Chance of precipitation is 40%.
Tuesday
A chance of showers before 2pm. Mostly cloudy, with a high near 68. Chance of precipitation is 30%.
Tuesday Night
A chance of rain after 2am. Mostly cloudy, with a low around 53. Chance of precipitation is 40%.
Wednesday
Rain likely, mainly after 2pm. Mostly cloudy, with a high near 65. Chance of precipitation is 60%.
Wednesday Night
Rain likely before 2am, then a chance of rain and snow. Mostly cloudy, with a low around 32. Chance of precipitation is 60%.
Thursday
A chance of rain and snow. Mostly cloudy, with a high near 44. Chance of precipitation is 40%.
Thursday Night
Rain, snow, and freezing rain likely. Mostly cloudy, with a low around 30. Chance of precipitation is 60%.
Friday
Rain, snow, and freezing rain likely. Mostly cloudy, with a high near 43. Chance of precipitation is 60%.
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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:
3:22 pm EDT Mar 28, 2026
Forecast Valid:
4pm EDT Mar 28, 2026-6pm EDT Apr 3, 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