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.

Partly Cloudy

73°F

23°C

Humidity 46%
Wind Speed W 12 mph
Barometer 29.92 in (1012.8 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 21 Jun 11:56 am EDT
Extended Forecast for

4 Miles ENE Lewbeach NY

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 68. Northwest wind around 7 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 68 °F

    Chance
    Showers

  • Tonight

    Tonight: Increasing clouds, with a low around 50. Calm wind.

    Low: 50 °F

    Increasing
    Clouds

  • Monday

    Monday: Showers, with thunderstorms also possible after 11am. High near 62. Calm wind becoming southeast 5 to 7 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 62 °F

    Showers

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm, then showers after 8pm. Low around 53. Light and variable wind. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 53 °F

    Showers

  • Tuesday

    Tuesday: A chance of showers, mainly before 8am. Partly sunny, with a high near 69. North wind 6 to 8 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 69 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

  • Wednesday Night

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

    Low: 52 °F

    Mostly Clear

  • Thursday

    Thursday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 74. Chance of precipitation is 50%.

    High: 74 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 68. Northwest wind around 7 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Increasing clouds, with a low around 50. Calm wind.
Monday
Showers, with thunderstorms also possible after 11am. High near 62. Calm wind becoming southeast 5 to 7 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Monday Night
Showers likely and possibly a thunderstorm, then showers after 8pm. Low around 53. Light and variable wind. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Tuesday
A chance of showers, mainly before 8am. Partly sunny, with a high near 69. North wind 6 to 8 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Mostly clear, with a low around 50.
Wednesday
Sunny, with a high near 72.
Wednesday Night
Mostly clear, with a low around 52.
Thursday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 74. Chance of precipitation is 50%.
Thursday Night
A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then showers likely after 2am. Mostly cloudy, with a low around 53. Chance of precipitation is 70%.
Friday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 72. Chance of precipitation is 70%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 53. Chance of precipitation is 30%.
Saturday
A chance of showers. Partly sunny, with a high near 73. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ENE Lewbeach NY
 42.03°N 74.72°W (Elev. 2257 ft)
Last Update:
8:36 am EDT Jun 21, 2026
Forecast Valid:
12pm EDT Jun 21, 2026-6pm EDT Jun 27, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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