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.

Overcast

33°F

1°C

Humidity 96%
Wind Speed N 5 mph
Barometer 30.20 in (1023.5 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill28°F (-2°C)
Last update 5 Mar 2:56 am EST
Extended Forecast for

Mongaup Valley NY

Winter Weather Advisory March 5, 05:00pm until March 6, 12:00pm
Click here for hazard details and duration
Winter Weather Advisory

  • Overnight

    Overnight: Patchy fog. Otherwise, cloudy, with a low around 29. Calm wind.

    Low: 29 °F

    Patchy Fog

  • Thursday

    Thursday: Rain. Patchy fog before 10am. High near 38. Calm wind becoming east around 6 mph in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 38 °F

    Rain and
    Patchy Fog

  • Thursday Night

    Thursday Night: Rain before 4am, then a chance of rain or freezing rain. Low around 32. East wind around 6 mph. Chance of precipitation is 100%. New ice accumulation of less than a 0.1 of an inch possible.

    Low: 32 °F

    Rain then
    Rain/Freezing
    Rain

  • Friday

    Friday: A slight chance of rain or freezing rain before 10am, then a slight chance of rain between 10am and 1pm. Mostly cloudy, with a high near 37. East wind 3 to 5 mph. Chance of precipitation is 20%.

    High: 37 °F

    Slight Chance
    Rain/Freezing
    Rain then
    Slight Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers, mainly before 1am. Cloudy, with a low around 32. Calm wind. Chance of precipitation is 30%.

    Low: 32 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly cloudy, with a high near 53.

    High: 53 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Showers, mainly before 1am. Low around 40. Chance of precipitation is 80%.

    Low: 40 °F

    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 33.

    Low: 33 °F

    Mostly Clear

Detailed Forecast

Overnight
Patchy fog. Otherwise, cloudy, with a low around 29. Calm wind.
Thursday
Rain. Patchy fog before 10am. High near 38. Calm wind becoming east around 6 mph in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Rain before 4am, then a chance of rain or freezing rain. Low around 32. East wind around 6 mph. Chance of precipitation is 100%. New ice accumulation of less than a 0.1 of an inch possible.
Friday
A slight chance of rain or freezing rain before 10am, then a slight chance of rain between 10am and 1pm. Mostly cloudy, with a high near 37. East wind 3 to 5 mph. Chance of precipitation is 20%.
Friday Night
A chance of showers, mainly before 1am. Cloudy, with a low around 32. Calm wind. Chance of precipitation is 30%.
Saturday
Mostly cloudy, with a high near 53.
Saturday Night
Showers, mainly before 1am. Low around 40. Chance of precipitation is 80%.
Sunday
Mostly sunny, with a high near 53.
Sunday Night
Mostly clear, with a low around 33.
Monday
Sunny, with a high near 59.
Monday Night
Mostly clear, with a low around 40.
Tuesday
Sunny, with a high near 66.
Tuesday Night
A chance of rain. Partly cloudy, with a low around 46. Chance of precipitation is 30%.
Wednesday
A chance of rain. Mostly cloudy, with a high near 66. Chance of precipitation is 50%.
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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:
1:30 am EST Mar 5, 2026
Forecast Valid:
3am EST Mar 5, 2026-6pm EDT Mar 11, 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