Current conditions at

Monticello, Sullivan County International Airport (KMSV)

Lat: 41.7°NLon: 74.8°WElev: 1404ft.

Fair

31°F

-1°C

Humidity 59%
Wind Speed SE 5 mph
Barometer 30.53 in (1035.4 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 9 Apr 12:56 am EDT
Extended Forecast for

Upper Mongaup NY

Red Flag Warning April 9, 12:00pm until April 9, 06:00pm
Click here for hazard details and duration
Red Flag Warning
  • Overnight

    Overnight: Clear, with a low around 25. Calm wind.

    Low: 25 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 56. Calm wind becoming south 5 to 9 mph in the morning.

    High: 56 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 33. South wind around 5 mph becoming calm  in the evening.

    Low: 33 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 65. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 65 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of showers, mainly before 2am.  Mostly cloudy, with a low around 38. Southwest wind around 7 mph becoming northwest after midnight.  Chance of precipitation is 40%.

    Low: 38 °F

    Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 54.

    High: 54 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 31.

    Low: 31 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 43.

    Low: 43 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Clear, with a low around 25. Calm wind.
Thursday
Sunny, with a high near 56. Calm wind becoming south 5 to 9 mph in the morning.
Thursday Night
Mostly clear, with a low around 33. South wind around 5 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 65. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Friday Night
A chance of showers, mainly before 2am. Mostly cloudy, with a low around 38. Southwest wind around 7 mph becoming northwest after midnight. Chance of precipitation is 40%.
Saturday
Sunny, with a high near 54.
Saturday Night
Mostly clear, with a low around 31.
Sunday
Sunny, with a high near 58.
Sunday Night
Mostly cloudy, with a low around 43.
Monday
Mostly cloudy, with a high near 71.
Monday Night
Mostly cloudy, with a low around 56.
Tuesday
Partly sunny, with a high near 80.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 60. Chance of precipitation is 30%.
Wednesday
A chance of showers. Partly sunny, with a high near 78. Chance of precipitation is 40%.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Upper Mongaup NY
 41.47°N 74.8°W (Elev. 1224 ft)
2:30 pm EDT Apr 8, 2026
1am EDT Apr 9, 2026-6pm EDT Apr 15, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database