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.

Fair

32°F

0°C

Humidity 92%
Wind Speed NW 7 mph
Barometer 30.18 in (1023.3 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 10 Jan 4:56 am EST
Extended Forecast for

Mongaup Valley NY

  • Today

    Today: Showers, mainly after 3pm. Patchy fog between 8am and 9am. High near 39. Calm wind becoming east around 6 mph in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 39 °F

    Patchy Fog
    then Showers

  • Tonight

    Tonight: Showers, mainly before 9pm. Low around 31. East wind around 6 mph becoming calm in the evening. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 31 °F

    Showers then
    Chance
    Showers

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 37. West wind 8 to 13 mph, with gusts as high as 25 mph.

    High: 37 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 22. West wind 13 to 16 mph, with gusts as high as 37 mph.

    Low: 22 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 34. West wind 6 to 10 mph, with gusts as high as 22 mph.

    High: 34 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 39.

    High: 39 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 42.

    High: 42 °F

    Mostly Cloudy

Detailed Forecast

Today
Showers, mainly after 3pm. Patchy fog between 8am and 9am. High near 39. Calm wind becoming east around 6 mph in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Showers, mainly before 9pm. Low around 31. East wind around 6 mph becoming calm in the evening. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 37. West wind 8 to 13 mph, with gusts as high as 25 mph.
Sunday Night
Mostly cloudy, with a low around 22. West wind 13 to 16 mph, with gusts as high as 37 mph.
Monday
Mostly sunny, with a high near 34. West wind 6 to 10 mph, with gusts as high as 22 mph.
Monday Night
Mostly cloudy, with a low around 24.
Tuesday
Mostly sunny, with a high near 39.
Tuesday Night
Mostly cloudy, with a low around 31.
Wednesday
Mostly cloudy, with a high near 42.
Wednesday Night
Mostly cloudy, with a low around 22.
Thursday
Partly sunny, with a high near 30.
Thursday Night
Partly cloudy, with a low around 12.
Friday
Mostly sunny, with a high near 26.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mongaup Valley NY
 41.65°N 74.79°W (Elev. 1181 ft)
Last Update:
4:57 am EST Jan 10, 2026
Forecast Valid:
5am EST Jan 10, 2026-6pm EST Jan 16, 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