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.

Thunderstorm in Vicinity Light Rain

76°F

24°C

Humidity 79%
Wind Speed W 5 mph
Barometer 30.06 in (1017.0 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 30 Jun 7:56 pm EDT
Extended Forecast for

2 Miles NNW Wangaum PA

Extreme Heat Warning July 1, 11:00am until July 3, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning

  • Tonight

    Tonight: A slight chance of showers and thunderstorms between 9pm and 10pm. Partly cloudy, with a low around 69. Southwest wind around 7 mph. Chance of precipitation is 20%.

    Low: 69 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, mainly after 5pm. Mostly sunny and hot, with a high near 94. Heat index values as high as 103. West 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: 94 °F

    Sunny then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms before 11pm. Partly cloudy, with a low around 72. Light west wind. Chance of precipitation is 20%.

    Low: 72 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 97. Heat index values as high as 103. Light west wind increasing to 5 to 9 mph in the morning.

    High: 97 °F

    Hot

  • Thursday Night

    Thursday Night: Clear, with a low around 74. West wind 3 to 6 mph.

    Low: 74 °F

    Clear

  • Friday

    Friday: A slight chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 96. Chance of precipitation is 20%.

    High: 96 °F

    Sunny then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 70.

    Low: 70 °F

    Partly Cloudy

  • Independence Day

    Independence Day: Showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 90. Chance of precipitation is 60%.

    High: 90 °F

    Mostly Sunny
    then Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 8pm. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.

    Low: 67 °F

    Showers
    Likely then
    Mostly Cloudy

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms between 9pm and 10pm. Partly cloudy, with a low around 69. Southwest wind around 7 mph. Chance of precipitation is 20%.
Wednesday
A chance of showers and thunderstorms, mainly after 5pm. Mostly sunny and hot, with a high near 94. Heat index values as high as 103. West 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.
Wednesday Night
A slight chance of showers and thunderstorms before 11pm. Partly cloudy, with a low around 72. Light west wind. Chance of precipitation is 20%.
Thursday
Sunny and hot, with a high near 97. Heat index values as high as 103. Light west wind increasing to 5 to 9 mph in the morning.
Thursday Night
Clear, with a low around 74. West wind 3 to 6 mph.
Friday
A slight chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 96. Chance of precipitation is 20%.
Friday Night
Partly cloudy, with a low around 70.
Independence Day
Showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 90. Chance of precipitation is 60%.
Saturday Night
Showers likely and possibly a thunderstorm before 8pm. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.
Sunday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 50%.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 50%.
Monday
A chance of showers. Partly sunny, with a high near 82. Chance of precipitation is 50%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 63. Chance of precipitation is 30%.
Tuesday
A chance of showers. Mostly sunny, with a high near 82. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Wangaum PA
 41.52°N 75.26°W (Elev. 1398 ft)
Last Update:
6:30 pm EDT Jun 30, 2026
Forecast Valid:
8pm EDT Jun 30, 2026-6pm EDT Jul 7, 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