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

79°F

26°C

Humidity 82%
Wind Speed Calm
Barometer 30.13 in (1019.5 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 6 Aug 6:56 pm EDT
Extended Forecast for

6 Miles NNE Sundown NY

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 9pm. Mostly cloudy, with a low around 61. West wind 5 to 7 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 61 °F

    Showers
    Likely then
    Partly Cloudy

  • Friday

    Friday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3pm. Increasing clouds, with a high near 75. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Mostly Sunny
    then Showers
    Likely

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 1am. Mostly cloudy, with a low around 59. West wind 3 to 6 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 59 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 75. Southwest wind 7 to 9 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Partly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 58. West wind 8 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 58 °F

    Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Monday

    Monday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 75. Chance of precipitation is 30%.

    High: 75 °F

    Mostly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 56. Chance of precipitation is 40%.

    Low: 56 °F

    Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Tonight
Showers and thunderstorms likely, mainly before 9pm. Mostly cloudy, with a low around 61. West wind 5 to 7 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3pm. Increasing clouds, with a high near 75. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 1am. Mostly cloudy, with a low around 59. West wind 3 to 6 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 75. Southwest wind 7 to 9 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 58. West wind 8 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Sunny, with a high near 73.
Sunday Night
Mostly clear, with a low around 54.
Monday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 75. Chance of precipitation is 30%.
Monday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 56. Chance of precipitation is 40%.
Tuesday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 73. Chance of precipitation is 50%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 55. Chance of precipitation is 30%.
Wednesday
Partly sunny, with a high near 71.
Wednesday Night
Mostly cloudy, with a low around 52.
Thursday
A chance of showers. Mostly sunny, with a high near 70. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles NNE Sundown NY
 41.96°N 74.41°W (Elev. 3110 ft)
Last Update:
2:36 pm EDT Aug 6, 2026
Forecast Valid:
7pm EDT Aug 6, 2026-6pm EDT Aug 13, 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