Current conditions at

Monticello, Sullivan County International Airport (KMSV)

Lat: 41.7°NLon: 74.8°WElev: 1404ft.

Fair

75°F

24°C

Humidity 94%
Wind Speed Calm
Barometer 30.03 in (1015.7 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Last update 1 Jul 8:56 pm EDT
Extended Forecast for

3 Miles N Lewbeach NY

Extreme Heat Warning July 1, 08:59pm until July 3, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning July 1, 08:59pm until July 3, 08:00pm

    NOW until 8:00pm Fri

    Extreme Heat Warning

  • Tonight

    Low: 68 °F

    Partly Cloudy
    then Patchy
    Fog

  • Thursday

    Thursday: Sunny and hot, with a high near 92. Heat index values as high as 97. Calm wind becoming west 5 to 7 mph in the morning.

    High: 92 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 69. Light northwest wind.

    Low: 69 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 90. Heat index values as high as 96. West wind 5 to 9 mph.  Chance of precipitation is 20%.

    High: 90 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 65. Northwest wind around 5 mph becoming calm  in the evening.

    Low: 65 °F

    Partly Cloudy

  • Independence Day

    Independence Day: A chance of showers, with thunderstorms also possible after 11am.  Partly sunny, with a high near 85. Chance of precipitation is 50%.

    High: 85 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 62.

    Low: 62 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of showers and thunderstorms after 2pm.  Partly sunny, with a high near 83. Chance of precipitation is 50%.

    High: 83 °F

    Partly Sunny
    then Chance
    T-storms

Detailed Forecast

Tonight
Patchy fog after 1am. Otherwise, partly cloudy, with a low around 68. Calm wind.
Thursday
Sunny and hot, with a high near 92. Heat index values as high as 97. Calm wind becoming west 5 to 7 mph in the morning.
Thursday Night
Mostly clear, with a low around 69. Light northwest wind.
Friday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Heat index values as high as 96. West wind 5 to 9 mph. Chance of precipitation is 20%.
Friday Night
Partly cloudy, with a low around 65. Northwest wind around 5 mph becoming calm in the evening.
Independence Day
A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 85. Chance of precipitation is 50%.
Saturday Night
Mostly cloudy, with a low around 62.
Sunday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 50%.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 50%.
Monday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 80. Chance of precipitation is 70%.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.
Tuesday
Partly sunny, with a high near 78.
Tuesday Night
Partly cloudy, with a low around 59.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 81. Chance of precipitation is 30%.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Lewbeach NY
 42.04°N 74.77°W (Elev. 2008 ft)
2:30 pm EDT Jul 1, 2026
8pm EDT Jul 1, 2026-6pm EDT Jul 8, 2026
 
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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