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

58°F

14°C

Humidity 90%
Wind Speed N 3 mph
Barometer 30.23 in (1023.5 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 29 Aug 9:56 pm EDT
Extended Forecast for

5 Miles ENE Sundown NY

  • Tonight

    Tonight: Increasing clouds, with a low around 52. Calm wind.

    Low: 52 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A slight chance of showers after 2pm. Partly sunny, with a high near 76. West wind 5 to 7 mph. Chance of precipitation is 20%.

    High: 76 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers, mainly before 3am. Mostly cloudy, with a low around 57. Calm wind. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 57 °F

    Chance
    Showers

  • Monday

    Monday: A chance of showers, mainly after 2pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 75. Light and variable wind. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 75 °F

    Chance
    Showers and
    Patchy Fog

  • Monday Night

    Monday Night: A chance of showers. Mostly cloudy, with a low around 60. Calm wind. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 60 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 76. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 76 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers. Mostly cloudy, with a low around 61. Chance of precipitation is 60%.

    Low: 61 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 77. Chance of precipitation is 60%.

    High: 77 °F

    Partly Sunny
    then Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 60. Chance of precipitation is 70%.

    Low: 60 °F

    Showers
    Likely

Detailed Forecast

Tonight
Increasing clouds, with a low around 52. Calm wind.
Sunday
A slight chance of showers after 2pm. Partly sunny, with a high near 76. West wind 5 to 7 mph. Chance of precipitation is 20%.
Sunday Night
A chance of showers, mainly before 3am. Mostly cloudy, with a low around 57. Calm wind. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Monday
A chance of showers, mainly after 2pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 75. Light and variable wind. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
A chance of showers. Mostly cloudy, with a low around 60. Calm wind. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 76. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers. Mostly cloudy, with a low around 61. Chance of precipitation is 60%.
Wednesday
Showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 77. Chance of precipitation is 60%.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 60. Chance of precipitation is 70%.
Thursday
A chance of showers. Mostly cloudy, with a high near 76. Chance of precipitation is 50%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 56. Chance of precipitation is 40%.
Friday
A chance of showers. Mostly sunny, with a high near 73. Chance of precipitation is 30%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 53. Chance of precipitation is 30%.
Saturday
A chance of showers. Mostly sunny, with a high near 73. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles ENE Sundown NY
 41.93°N 74.38°W (Elev. 1535 ft)
Last Update:
8:36 pm EDT Aug 29, 2026
Forecast Valid:
10pm EDT Aug 29, 2026-6pm EDT Sep 5, 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