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.

Fair

59°F

15°C

Humidity 69%
Wind Speed W 12 G 18 mph
Barometer 29.79 in (1008.2 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 19 Jun 11:56 pm EDT
Extended Forecast for

Long Flat NY

  • Overnight

    Overnight: Mostly clear, with a low around 52. West wind around 10 mph.

    Low: 52 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 69. Northwest wind around 10 mph, with gusts as high as 21 mph.

    High: 69 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 50. Northwest wind around 6 mph becoming calm in the evening.

    Low: 50 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 72. Calm wind becoming west around 6 mph in the afternoon.

    High: 72 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A chance of showers after 2am. Mostly cloudy, with a low around 52. Light and variable wind. Chance of precipitation is 40%.

    Low: 52 °F

    Partly Cloudy
    then Chance
    Showers

  • Monday

    Monday: Showers, with thunderstorms also possible after 2pm. High near 66. Chance of precipitation is 100%.

    High: 66 °F

    Showers

  • Monday Night

    Monday Night: Showers likely before 2am. Mostly cloudy, with a low around 53. Chance of precipitation is 60%.

    Low: 53 °F

    Showers
    Likely

  • Tuesday

    Tuesday: Partly sunny, with a high near 72.

    High: 72 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 52. West wind around 10 mph.
Saturday
Mostly sunny, with a high near 69. Northwest wind around 10 mph, with gusts as high as 21 mph.
Saturday Night
Mostly clear, with a low around 50. Northwest wind around 6 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 72. Calm wind becoming west around 6 mph in the afternoon.
Sunday Night
A chance of showers after 2am. Mostly cloudy, with a low around 52. Light and variable wind. Chance of precipitation is 40%.
Monday
Showers, with thunderstorms also possible after 2pm. High near 66. Chance of precipitation is 100%.
Monday Night
Showers likely before 2am. Mostly cloudy, with a low around 53. Chance of precipitation is 60%.
Tuesday
Partly sunny, with a high near 72.
Tuesday Night
Mostly clear, with a low around 52.
Wednesday
Sunny, with a high near 75.
Wednesday Night
Partly cloudy, with a low around 54.
Thursday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 75. Chance of precipitation is 60%.
Thursday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 55. Chance of precipitation is 70%.
Friday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 74. Chance of precipitation is 70%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Long Flat NY
 42.01°N 75.08°W (Elev. 2031 ft)
Last Update:
12:23 am EDT Jun 20, 2026
Forecast Valid:
12am EDT Jun 20, 2026-6pm EDT Jun 26, 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