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.

Overcast

37°F

3°C

Humidity 73%
Wind Speed NW 13 G 20 mph
Barometer 29.99 in (1016.3 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 27 Mar 9:56 am EDT
Extended Forecast for

Mongaup Valley NY

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 43. North wind 7 to 10 mph, with gusts as high as 20 mph.

    High: 43 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Mostly clear, with a low around 19. Northwest wind 3 to 6 mph.

    Low: 19 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 34. Northwest wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 34 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 18. Northwest wind around 5 mph becoming calm in the evening.

    Low: 18 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 48. Light south wind becoming southwest 5 to 10 mph in the morning.

    High: 48 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 54.

    High: 54 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A chance of rain after 2am. Mostly cloudy, with a low around 39. Chance of precipitation is 30%.

    Low: 39 °F

    Mostly Cloudy
    then Chance
    Rain

  • Tuesday

    Tuesday: A chance of rain. Mostly cloudy, with a high near 58. Chance of precipitation is 50%.

    High: 58 °F

    Chance Rain

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 43. North wind 7 to 10 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 19. Northwest wind 3 to 6 mph.
Saturday
Mostly sunny, with a high near 34. Northwest wind 6 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 18. Northwest wind around 5 mph becoming calm in the evening.
Sunday
Partly sunny, with a high near 48. Light south wind becoming southwest 5 to 10 mph in the morning.
Sunday Night
Partly cloudy, with a low around 32.
Monday
Mostly sunny, with a high near 54.
Monday Night
A chance of rain after 2am. Mostly cloudy, with a low around 39. Chance of precipitation is 30%.
Tuesday
A chance of rain. Mostly cloudy, with a high near 58. Chance of precipitation is 50%.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 46. Chance of precipitation is 50%.
Wednesday
A chance of rain. Mostly cloudy, with a high near 69. Chance of precipitation is 50%.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 48. Chance of precipitation is 40%.
Thursday
A chance of rain. Mostly cloudy, with a high near 66. Chance of precipitation is 40%.
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:
6:25 am EDT Mar 27, 2026
Forecast Valid:
10am EDT Mar 27, 2026-6pm EDT Apr 2, 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