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.

Fair

67°F

19°C

Humidity 36%
Wind Speed S 10 mph
Barometer 30.20 in (1023.0 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 10 Apr 12:56 pm EDT
Extended Forecast for

Mongaup Valley NY

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 68. South wind 7 to 9 mph.

    High: 68 °F

    Mostly Sunny

  • Tonight

    Tonight: Scattered sprinkles before 10pm, then scattered showers between 10pm and 2am. Mostly cloudy, with a low around 38. South wind around 7 mph becoming northwest after midnight. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 38 °F

    Scattered
    Showers

  • Saturday

    Saturday: Partly sunny, then gradually becoming sunny, with a high near 53. Northwest wind around 10 mph.

    High: 53 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 29. Northwest wind around 5 mph becoming calm in the evening.

    Low: 29 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 56. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 56 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 42.

    Low: 42 °F

    Mostly Cloudy

  • Monday

    Monday: A chance of sprinkles. Mostly cloudy, with a high near 67.

    High: 67 °F

    Chance
    Sprinkles

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 53.

    Low: 53 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of showers after 2pm. Mostly cloudy, with a high near 76. Chance of precipitation is 30%.

    High: 76 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 68. South wind 7 to 9 mph.
Tonight
Scattered sprinkles before 10pm, then scattered showers between 10pm and 2am. Mostly cloudy, with a low around 38. South wind around 7 mph becoming northwest after midnight. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Partly sunny, then gradually becoming sunny, with a high near 53. Northwest wind around 10 mph.
Saturday Night
Mostly clear, with a low around 29. Northwest wind around 5 mph becoming calm in the evening.
Sunday
Partly sunny, with a high near 56. Calm wind becoming south 5 to 7 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 42.
Monday
A chance of sprinkles. Mostly cloudy, with a high near 67.
Monday Night
Mostly cloudy, with a low around 53.
Tuesday
A chance of showers after 2pm. Mostly cloudy, with a high near 76. Chance of precipitation is 30%.
Tuesday Night
A chance of showers before 2am. Mostly cloudy, with a low around 56. Chance of precipitation is 40%.
Wednesday
A chance of showers. Partly sunny, with a high near 79. Chance of precipitation is 30%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 56. Chance of precipitation is 30%.
Thursday
Partly sunny, with a high near 75.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mongaup Valley NY
 41.65°N 74.79°W (Elev. 1181 ft)
Last Update:
2:30 am EDT Apr 10, 2026
Forecast Valid:
1pm EDT Apr 10, 2026-6pm EDT Apr 16, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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