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

42°F

6°C

Humidity 79%
Wind Speed Calm
Barometer 30.22 in (1024.6 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 4 Mar 6:56 pm EST
Extended Forecast for

Mongaup Valley NY

  • Tonight

    Tonight: A chance of rain after 5am. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 33. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 33 °F

    Patchy Fog
    then Chance
    Rain and
    Areas Fog

  • Thursday

    Thursday: Rain. Areas of fog before noon. High near 39. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 39 °F

    Rain and
    Areas Fog

  • Thursday Night

    Thursday Night: Rain before 4am, then rain or freezing rain. Low around 32. East wind around 6 mph. Chance of precipitation is 100%. Little or no ice accumulation expected.

    Low: 32 °F

    Rain then
    Rain/Freezing
    Rain

  • Friday

    Friday: Rain or freezing rain before 10am, then a chance of rain between 10am and 1pm. High near 39. East wind around 5 mph. Chance of precipitation is 80%. Little or no ice accumulation expected.

    High: 39 °F

    Rain/Freezing
    Rain then
    Chance
    Showers

  • Friday Night

    Friday Night: A slight chance of showers. Cloudy, with a low around 33. Calm wind. Chance of precipitation is 20%.

    Low: 33 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: A chance of showers after 1pm. Mostly cloudy, with a high near 55. Chance of precipitation is 30%.

    High: 55 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely before 1am. Mostly cloudy, with a low around 38. Chance of precipitation is 70%.

    Low: 38 °F

    Showers
    Likely

  • Sunday

    Sunday: Mostly sunny, with a high near 52.

    High: 52 °F

    Mostly Sunny

  • Sunday Night

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

    Low: 33 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of rain after 5am. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 33. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Rain. Areas of fog before noon. High near 39. Calm wind becoming east around 5 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 rain or freezing rain. Low around 32. East wind around 6 mph. Chance of precipitation is 100%. Little or no ice accumulation expected.
Friday
Rain or freezing rain before 10am, then a chance of rain between 10am and 1pm. High near 39. East wind around 5 mph. Chance of precipitation is 80%. Little or no ice accumulation expected.
Friday Night
A slight chance of showers. Cloudy, with a low around 33. Calm wind. Chance of precipitation is 20%.
Saturday
A chance of showers after 1pm. Mostly cloudy, with a high near 55. Chance of precipitation is 30%.
Saturday Night
Showers likely before 1am. Mostly cloudy, with a low around 38. Chance of precipitation is 70%.
Sunday
Mostly sunny, with a high near 52.
Sunday Night
Mostly clear, with a low around 33.
Monday
Sunny, with a high near 58.
Monday Night
Mostly clear, with a low around 39.
Tuesday
Mostly sunny, with a high near 67.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 51. Chance of precipitation is 30%.
Wednesday
A chance of showers. Mostly cloudy, with a high near 67. 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:
6:12 pm EST Mar 4, 2026
Forecast Valid:
7pm EST Mar 4, 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