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.

Fog

33°F

1°C

Humidity 100%
Wind Speed E 7 mph
Barometer 30.37 in (1029.9 mb)
Dewpoint 33°F (1°C)
Visibility 0.50 mi
Wind Chill27°F (-3°C)
Last update 6 Mar 6:56 pm EST
Extended Forecast for

Mongaup Valley NY

  • Tonight

    Tonight: Patchy rain or freezing rain before 4am, then a slight chance of rain showers after 5am. Patchy fog. Otherwise, mostly cloudy, with a low around 32. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 32 °F

    Patchy
    Rain/Freezing
    Rain and
    Patchy Fog

  • Saturday

    Saturday: Areas of fog before 1pm. Otherwise, mostly cloudy, with a high near 48. Calm wind becoming south 5 to 7 mph in the morning.

    High: 48 °F

    Areas Fog

  • Saturday Night

    Saturday Night: Rain before 10pm, then rain and possibly a thunderstorm between 10pm and 1am, then rain likely after 1am. Low around 44. South wind around 6 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 44 °F

    Rain

  • Sunday

    Sunday: Partly sunny, with a high near 56. West wind 6 to 8 mph.

    High: 56 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 32. Light west wind.

    Low: 32 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 39.

    Low: 39 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of rain after 1am. Mostly cloudy, with a low around 44. Chance of precipitation is 40%.

    Low: 44 °F

    Partly Cloudy
    then Chance
    Rain

Detailed Forecast

Tonight
Patchy rain or freezing rain before 4am, then a slight chance of rain showers after 5am. Patchy fog. Otherwise, mostly cloudy, with a low around 32. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Areas of fog before 1pm. Otherwise, mostly cloudy, with a high near 48. Calm wind becoming south 5 to 7 mph in the morning.
Saturday Night
Rain before 10pm, then rain and possibly a thunderstorm between 10pm and 1am, then rain likely after 1am. Low around 44. South wind around 6 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
Partly sunny, with a high near 56. West wind 6 to 8 mph.
Sunday Night
Mostly clear, with a low around 32. Light west wind.
Monday
Sunny, with a high near 62.
Monday Night
Clear, with a low around 39.
Tuesday
Sunny, with a high near 65.
Tuesday Night
A chance of rain after 1am. Mostly cloudy, with a low around 44. Chance of precipitation is 40%.
Wednesday
Rain likely. Mostly cloudy, with a high near 61. Chance of precipitation is 70%.
Wednesday Night
Rain likely. Cloudy, with a low around 32. Chance of precipitation is 60%.
Thursday
A chance of rain and snow. Mostly cloudy, with a high near 43. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 22.
Friday
Partly sunny, with a high near 43.
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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:
5:58 pm EST Mar 6, 2026
Forecast Valid:
7pm EST Mar 6, 2026-6pm EDT Mar 13, 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