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.

Light Rain

51°F

11°C

Humidity 96%
Wind Speed SE 9 mph
Barometer 29.90 in (1012.3 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 18 Apr 10:56 pm EDT
Extended Forecast for

Upper Mongaup NY

  • Tonight

    Tonight: Showers likely, mainly after 5am. Cloudy, with a low around 38. Southeast wind around 7 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 38 °F

    Showers
    Likely

  • Sunday

    Sunday: Showers, mainly before 1pm. High near 51. Northwest wind 9 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 51 °F

    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 30. Northwest wind 3 to 7 mph.

    Low: 30 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 43. Northwest wind 8 to 10 mph, with gusts as high as 20 mph.

    High: 43 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 22. Northwest wind 5 to 7 mph.

    Low: 22 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers. Mostly cloudy, with a low around 34. Chance of precipitation is 30%.

    Low: 34 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 58.

    High: 58 °F

    Partly Sunny

  • Wednesday Night

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

    Low: 35 °F

    Mostly Clear

Detailed Forecast

Tonight
Showers likely, mainly after 5am. Cloudy, with a low around 38. Southeast wind around 7 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Showers, mainly before 1pm. High near 51. Northwest wind 9 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Partly cloudy, with a low around 30. Northwest wind 3 to 7 mph.
Monday
Mostly sunny, with a high near 43. Northwest wind 8 to 10 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 22. Northwest wind 5 to 7 mph.
Tuesday
Sunny, with a high near 50.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 34. Chance of precipitation is 30%.
Wednesday
Partly sunny, with a high near 58.
Wednesday Night
Mostly clear, with a low around 35.
Thursday
Sunny, with a high near 65.
Thursday Night
Partly cloudy, with a low around 41.
Friday
Mostly sunny, with a high near 67.
Friday Night
Partly cloudy, with a low around 43.
Saturday
A chance of showers. Partly sunny, with a high near 61. 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:
2:30 pm EDT Apr 18, 2026
Forecast Valid:
11pm EDT Apr 18, 2026-6pm EDT Apr 25, 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