National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Monticello, Sullivan County International Airport (KMSV)

Lat: 41.7°NLon: 74.8°WElev: 1404ft.

Fair

95°F

35°C

Humidity 41%
Wind Speed W 10 G 18 mph
Barometer 30.04 in (1015.7 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index100°F (38°C)
Last update 2 Jul 2:56 pm EDT
Extended Forecast for

Monticello NY

Extreme Heat Warning July 2, 03:53pm until July 3, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning July 2, 03:53pm until July 3, 08:00pm

    NOW until 8:00pm Fri

    Extreme Heat Warning

  • This Afternoon

    High: 97 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 71. West wind around 6 mph.

    Low: 71 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of showers and thunderstorms between 3pm and 4pm. Sunny and hot, with a high near 93. Heat index values as high as 98. West wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 93 °F

    Sunny then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and midnight. Partly cloudy, with a low around 70. West wind around 6 mph. Chance of precipitation is 30%.

    Low: 70 °F

    Chance
    Showers then
    Mostly Cloudy

  • Independence Day

    Independence Day: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 90. Northwest wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

    High: 90 °F

    Partly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Partly cloudy, with a low around 63. Chance of precipitation is 30%.

    Low: 63 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Sunday

    Sunday: A chance of showers after 2pm. Mostly sunny, with a high near 85. Chance of precipitation is 40%.

    High: 85 °F

    Mostly Sunny
    then Chance
    Showers

  • Sunday Night

    Sunday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.

    Low: 62 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 97. Heat index values as high as 103. West wind around 9 mph.
Tonight
Mostly clear, with a low around 71. West wind around 6 mph.
Friday
A slight chance of showers and thunderstorms between 3pm and 4pm. Sunny and hot, with a high near 93. Heat index values as high as 98. West wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Friday Night
A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and midnight. Partly cloudy, with a low around 70. West wind around 6 mph. Chance of precipitation is 30%.
Independence Day
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 90. Northwest wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Saturday Night
A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Partly cloudy, with a low around 63. Chance of precipitation is 30%.
Sunday
A chance of showers after 2pm. Mostly sunny, with a high near 85. Chance of precipitation is 40%.
Sunday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.
Monday
Showers likely, mainly before 2pm. Mostly cloudy, with a high near 75. Chance of precipitation is 60%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 59. Chance of precipitation is 50%.
Tuesday
A chance of showers. Partly sunny, with a high near 79. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 59.
Wednesday
Mostly sunny, with a high near 83.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Monticello NY
 41.65°N 74.67°W (Elev. 1414 ft)
Last Update:
2:30 pm EDT Jul 2, 2026
Forecast Valid:
3pm EDT Jul 2, 2026-6pm EDT Jul 8, 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