Current conditions at

Monticello, Sullivan County International Airport (KMSV)

Lat: 41.7°NLon: 74.8°WElev: 1404ft.

Partly Cloudy

63°F

17°C

Humidity 93%
Wind Speed S 3 mph
Barometer 29.88 in (1011.5 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 13 Oct 10:56 pm EDT
Extended Forecast for

Mongaup Valley NY

  • Tonight

    Tonight: Mostly clear, with a low around 61. West wind 7 to 9 mph.

    Low: 61 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 71. Northwest wind 9 to 13 mph.

    High: 71 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 44. Northwest wind 8 to 10 mph.

    Low: 44 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 64. North wind around 6 mph becoming light and variable.

    High: 64 °F

    Sunny

  • Thursday Night

    Thursday Night: Showers, mainly after 2am.  Low around 46. Southeast wind 6 to 9 mph.  Chance of precipitation is 90%.

    Low: 46 °F

    Chance
    Showers then
    Showers

  • Friday

    Friday: Showers, with thunderstorms also possible after 2pm.  High near 65. Chance of precipitation is 100%.

    High: 65 °F

    Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 33. Breezy.

    Low: 33 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Saturday

    Saturday: Mostly sunny, with a high near 43. Breezy.

    High: 43 °F

    Partly Sunny
    and Breezy
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 28.

    Low: 28 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 61. West wind 7 to 9 mph.
Wednesday
Mostly sunny, with a high near 71. Northwest wind 9 to 13 mph.
Wednesday Night
Partly cloudy, with a low around 44. Northwest wind 8 to 10 mph.
Thursday
Sunny, with a high near 64. North wind around 6 mph becoming light and variable.
Thursday Night
Showers, mainly after 2am. Low around 46. Southeast wind 6 to 9 mph. Chance of precipitation is 90%.
Friday
Showers, with thunderstorms also possible after 2pm. High near 65. Chance of precipitation is 100%.
Friday Night
Mostly cloudy, with a low around 33. Breezy.
Saturday
Mostly sunny, with a high near 43. Breezy.
Saturday Night
Mostly clear, with a low around 28.
Sunday
Sunny, with a high near 55.
Sunday Night
Mostly clear, with a low around 33.
Monday
Mostly sunny, with a high near 61.
Monday Night
Mostly cloudy, with a low around 39.
Tuesday
Mostly sunny, with a high near 63.
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ABOUT THIS FORECAST

 
Point Forecast:
Mongaup Valley NY
 41.69°N 74.81°W (Elev. 1299 ft)
2:30 pm EDT Oct 13, 2026
11pm EDT Oct 13, 2026-6pm EDT Oct 20, 2026
 
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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