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.

A Few Clouds

4°F

-16°C

Humidity 76%
Wind Speed W 6 mph
Barometer 29.93 in (1016.5 mb)
Dewpoint -2°F (-19°C)
Visibility 10.00 mi
Wind Chill-7°F (-22°C)
Last update 28 Jan 9:56 pm EST
Extended Forecast for

Upper Mongaup NY

Cold Weather Advisory January 28, 11:00pm until January 29, 09:00am
Click here for hazard details and duration
Cold Weather Advisory

  • Tonight

    Tonight: Partly cloudy, with a low around -2. Wind chill values as low as -13. Northwest wind around 6 mph.

    Low: -2 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 16. Wind chill values as low as -14. Northwest wind 6 to 9 mph, with gusts as high as 20 mph.

    High: 16 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -2. Wind chill values as low as -16. Northwest wind around 9 mph, with gusts as high as 21 mph.

    Low: -2 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 11. Wind chill values as low as -18. Northwest wind around 10 mph, with gusts as high as 22 mph.

    High: 11 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around -5. Northwest wind 5 to 8 mph.

    Low: -5 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 16.

    High: 16 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 1.

    Low: 1 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 19.

    High: 19 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 9.

    Low: 9 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around -2. Wind chill values as low as -13. Northwest wind around 6 mph.
Thursday
Mostly sunny, with a high near 16. Wind chill values as low as -14. Northwest wind 6 to 9 mph, with gusts as high as 20 mph.
Thursday Night
Partly cloudy, with a low around -2. Wind chill values as low as -16. Northwest wind around 9 mph, with gusts as high as 21 mph.
Friday
Sunny, with a high near 11. Wind chill values as low as -18. Northwest wind around 10 mph, with gusts as high as 22 mph.
Friday Night
Mostly clear, with a low around -5. Northwest wind 5 to 8 mph.
Saturday
Mostly sunny, with a high near 16.
Saturday Night
Mostly cloudy, with a low around 1.
Sunday
Partly sunny, with a high near 19.
Sunday Night
Partly cloudy, with a low around 9.
Monday
Sunny, with a high near 26.
Monday Night
Partly cloudy, with a low around 10.
Tuesday
Partly sunny, with a high near 27.
Tuesday Night
Mostly cloudy, with a low around 9.
Wednesday
Mostly sunny, with a high near 27.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Upper Mongaup NY
 41.47°N 74.8°W (Elev. 1224 ft)
Last Update:
5:52 pm EST Jan 28, 2026
Forecast Valid:
10pm EST Jan 28, 2026-6pm EST Feb 4, 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