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.

Overcast

75°F

24°C

Humidity 64%
Wind Speed W 8 mph
Barometer 29.95 in (1013.6 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 19 Aug 5:56 pm EDT
Extended Forecast for

Long Flat NY

  • Tonight

    Tonight: A slight chance of showers before 7pm. Patchy fog after midnight. Otherwise, partly cloudy, with a low around 57. Light and variable wind. Chance of precipitation is 20%.

    Low: 57 °F

    Slight Chance
    Showers then
    Patchy Fog

  • Thursday

    Thursday: A chance of showers, mainly after 3pm. Mostly cloudy, with a high near 72. Light northeast wind. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 72 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers, mainly before 7pm. Mostly cloudy during the early evening, then gradual clearing, with a low around 52. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 52 °F

    Chance
    Showers then
    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 76. Light and variable wind.

    High: 76 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 56. Calm wind.

    Low: 56 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 75. Chance of precipitation is 50%.

    High: 75 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers. Mostly cloudy, with a low around 59. Chance of precipitation is 50%.

    Low: 59 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 74. Chance of precipitation is 70%.

    High: 74 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 53. Chance of precipitation is 60%.

    Low: 53 °F

    Showers
    Likely then
    Partly Cloudy

Detailed Forecast

Tonight
A slight chance of showers before 7pm. Patchy fog after midnight. Otherwise, partly cloudy, with a low around 57. Light and variable wind. Chance of precipitation is 20%.
Thursday
A chance of showers, mainly after 3pm. Mostly cloudy, with a high near 72. Light northeast wind. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
A chance of showers, mainly before 7pm. Mostly cloudy during the early evening, then gradual clearing, with a low around 52. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Mostly sunny, with a high near 76. Light and variable wind.
Friday Night
Partly cloudy, with a low around 56. Calm wind.
Saturday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 75. Chance of precipitation is 50%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 59. Chance of precipitation is 50%.
Sunday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 74. Chance of precipitation is 70%.
Sunday Night
Showers likely and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 53. Chance of precipitation is 60%.
Monday
Mostly sunny, with a high near 71.
Monday Night
Partly cloudy, with a low around 51.
Tuesday
Mostly sunny, with a high near 73.
Tuesday Night
Partly cloudy, with a low around 53.
Wednesday
A chance of showers. Mostly sunny, with a high near 76. Chance of precipitation is 30%.
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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:
2:30 pm EDT Aug 19, 2026
Forecast Valid:
6pm EDT Aug 19, 2026-6pm EDT Aug 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