Current conditions at

Monticello, Sullivan County International Airport (KMSV)

Lat: 41.7°NLon: 74.8°WElev: 1404ft.

Thunderstorm Light Rain

68°F

20°C

Humidity 93%
Wind Speed S 10 G 17 mph
Barometer 30.02 in (1016.0 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 27 Aug 7:56 pm EDT
Extended Forecast for

Mongaup Valley NY

Severe T-storm Watch August 27, 08:24pm until August 27, 09:00pm
Click here for hazard details and duration
...
  •  
    Severe T-storm Watch August 27, 08:24pm until August 27, 09:00pm

    NOW until 9:00pm Thu

    Severe T-storm Watch

  • Tonight

    Low: 60 °F

    Showers
    Likely then
    Isolated
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 80. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 80 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 50. Light northwest wind.

    Low: 50 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 78. Calm wind becoming west around 5 mph in the afternoon.

    High: 78 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 55. Calm wind.

    Low: 55 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

  • Monday

    Monday: A chance of showers after 2pm.  Partly sunny, with a high near 81. Chance of precipitation is 30%.

    High: 81 °F

    Partly Sunny
    then Chance
    Showers

Detailed Forecast

Tonight
Showers and thunderstorms likely before midnight, then isolated showers between midnight and 2am. Mostly cloudy, with a low around 60. Light and variable wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Mostly sunny, with a high near 80. Calm wind becoming northwest around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 50. Light northwest wind.
Saturday
Sunny, with a high near 78. Calm wind becoming west around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 55. Calm wind.
Sunday
Mostly sunny, with a high near 81.
Sunday Night
Partly cloudy, with a low around 61.
Monday
A chance of showers after 2pm. Partly sunny, with a high near 81. Chance of precipitation is 30%.
Monday Night
A chance of showers before 8pm. Mostly cloudy, with a low around 63. Chance of precipitation is 30%.
Tuesday
A chance of showers after 2pm. Mostly cloudy, with a high near 82. Chance of precipitation is 50%.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Wednesday
Showers likely. Mostly cloudy, with a high near 80. Chance of precipitation is 60%.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 61. Chance of precipitation is 60%.
Thursday
A chance of showers. Partly sunny, with a high near 79. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Mongaup Valley NY
 41.67°N 74.79°W (Elev. 1175 ft)
7:31 pm EDT Aug 27, 2026
8pm EDT Aug 27, 2026-6pm EDT Sep 3, 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