Hazardous Weather Conditions
Current conditions at
Monticello, Sullivan County International Airport (KMSV)
Lat: 41.7°NLon: 74.8°WElev: 1404ft.
Overcast
23°F
-5°C
| Humidity | 72% |
| Wind Speed | S 7 mph |
| Barometer | 29.77 in (1010.2 mb) |
| Dewpoint | 15°F (-9°C) |
| Visibility | 10.00 mi |
| Wind Chill | 15°F (-9°C) |
| Last update | 10 Dec 12:56 am EST |
Extended Forecast for
Upper Mongaup NY
Winter Weather Advisory December 10, 04:00am until December 11, 01:00am
Overnight

Low: 19 °F
Mostly Cloudy
Wednesday
High: 35 °F
Wintry Mix
then SnowWednesday Night

Low: 21 °F
Slight Chance
Snow ShowersThursday

High: 29 °F
Mostly Sunny
Thursday Night

Low: 17 °F
Partly Cloudy
Friday

High: 30 °F
Mostly Sunny
Friday Night
Low: 15 °F
Mostly Cloudy
then Chance
Snow ShowersSaturday

High: 33 °F
Mostly Cloudy
Saturday Night
Low: 21 °F
Mostly Cloudy
then Chance
Snow Showers
Detailed Forecast
Overnight
Mostly cloudy, with a low around 19. South wind around 6 mph.
Wednesday
Snow and freezing rain, becoming all snow after 9am. High near 35. South wind 6 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. Little or no ice accumulation expected. New snow accumulation of less than a half inch possible.
Wednesday Night
A slight chance of snow showers before 1am. Mostly cloudy, with a low around 21. Southwest wind 7 to 11 mph becoming west after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 29. West wind 13 to 15 mph, with gusts as high as 31 mph.
Thursday Night
Partly cloudy, with a low around 17. West wind around 11 mph, with gusts as high as 23 mph.
Friday
Mostly sunny, with a high near 30.
Friday Night
A chance of snow showers after 1am. Mostly cloudy, with a low around 15. Chance of precipitation is 30%.
Saturday
Mostly cloudy, with a high near 33.
Saturday Night
A chance of snow showers after 1am. Mostly cloudy, with a low around 21. Chance of precipitation is 40%.
Sunday
A chance of snow showers before 1pm. Mostly cloudy, with a high near 28. Chance of precipitation is 30%.
Sunday Night
Mostly cloudy, with a low around 10.
Monday
Partly sunny, with a high near 24.
Monday Night
Mostly cloudy, with a low around 12.
Tuesday
Partly sunny, with a high near 28.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Upper Mongaup NY
41.47°N 74.77°W (Elev. 1201 ft)
41.47°N 74.77°W (Elev. 1201 ft)
12:00 am EST Dec 10, 2025
1am EST Dec 10, 2025-6pm EST Dec 16, 2025



