National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Monticello, Sullivan County International Airport (KMSV)

Lat: 41.7°NLon: 74.8°WElev: 1404ft.

Light Rain

36°F

2°C

Humidity 93%
Wind Speed NW 20 G 28 mph
Barometer 29.69 in (1005.7 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 12 Mar 7:56 am EDT
Extended Forecast for

Mongaup Valley NY

  • Today

    Today: A chance of rain and snow showers before 3pm, then a slight chance of snow showers. Mostly cloudy, with a high near 37. Northwest wind 13 to 15 mph, with gusts as high as 32 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 37 °F

    Chance
    Rain/Snow
    then Slight
    Chance
    Rain/Snow

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 21. Northwest wind 6 to 10 mph, with gusts as high as 21 mph.

    Low: 21 °F

    Decreasing
    Clouds

  • Friday

    Friday: A chance of rain and snow showers after 2pm. Increasing clouds, with a high near 40. Light southwest wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 40 °F

    Mostly Sunny
    then Chance
    Rain/Snow

  • Friday Night

    Friday Night: A chance of rain and snow showers, mainly between 11pm and 2am. Mostly cloudy, with a low around 28. South wind around 9 mph becoming west after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 28 °F

    Chance
    Rain/Snow

  • Saturday

    Saturday: Mostly sunny, with a high near 42. West wind 10 to 13 mph, with gusts as high as 25 mph.

    High: 42 °F

    Mostly Sunny

  • Saturday Night

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

    Low: 24 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of snow before 2pm. Mostly cloudy, with a high near 43. Chance of precipitation is 30%.

    High: 43 °F

    Chance Snow

  • Sunday Night

    Sunday Night: Rain likely, mainly after 2am. Cloudy, with a low around 34. Chance of precipitation is 70%.

    Low: 34 °F

    Chance Rain
    then Rain
    Likely

  • Monday

    Monday: Rain. High near 58. Chance of precipitation is 90%.

    High: 58 °F

    Rain

Detailed Forecast

Today
A chance of rain and snow showers before 3pm, then a slight chance of snow showers. Mostly cloudy, with a high near 37. Northwest wind 13 to 15 mph, with gusts as high as 32 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 21. Northwest wind 6 to 10 mph, with gusts as high as 21 mph.
Friday
A chance of rain and snow showers after 2pm. Increasing clouds, with a high near 40. Light southwest wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Friday Night
A chance of rain and snow showers, mainly between 11pm and 2am. Mostly cloudy, with a low around 28. South wind around 9 mph becoming west after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Saturday
Mostly sunny, with a high near 42. West wind 10 to 13 mph, with gusts as high as 25 mph.
Saturday Night
Mostly cloudy, with a low around 24.
Sunday
A chance of snow before 2pm. Mostly cloudy, with a high near 43. Chance of precipitation is 30%.
Sunday Night
Rain likely, mainly after 2am. Cloudy, with a low around 34. Chance of precipitation is 70%.
Monday
Rain. High near 58. Chance of precipitation is 90%.
Monday Night
A chance of rain and snow before 2am. Mostly cloudy, with a low around 22. Chance of precipitation is 50%.
Tuesday
Partly sunny, with a high near 32.
Tuesday Night
Partly cloudy, with a low around 15.
Wednesday
Partly sunny, with a high near 33.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mongaup Valley NY
 41.65°N 74.79°W (Elev. 1181 ft)
Last Update:
6:37 am EDT Mar 12, 2026
Forecast Valid:
8am EDT Mar 12, 2026-6pm EDT Mar 18, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation