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

71°F

22°C

Humidity 66%
Wind Speed S 6 mph
Barometer 30.17 in (1021.0 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 4 Aug 8:56 pm EDT
Extended Forecast for

Apex NY

  • Tonight

    Tonight: Patchy fog after 3am. Otherwise, partly cloudy, with a low around 57. Calm wind.

    Low: 57 °F

    Partly Cloudy
    then Patchy
    Fog

  • Wednesday

    Wednesday: Areas of fog before 8am. Otherwise, partly sunny, with a high near 80. South wind 3 to 6 mph.

    High: 80 °F

    Areas Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers between 4am and 5am. Partly cloudy, with a low around 63. Light south wind. Chance of precipitation is 20%.

    Low: 63 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 83. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Chance
    Showers then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 65. Calm wind. Chance of precipitation is 60%.

    Low: 65 °F

    Showers
    Likely then
    Chance
    Showers

  • Friday

    Friday: A slight chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 81. Chance of precipitation is 70%.

    High: 81 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.

    Low: 63 °F

    Showers
    Likely then
    Chance
    T-storms

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm, mainly after 2pm. Mostly cloudy, with a high near 81. Chance of precipitation is 60%.

    High: 81 °F

    Chance
    Showers then
    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 62. Chance of precipitation is 60%.

    Low: 62 °F

    Showers
    Likely then
    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog after 3am. Otherwise, partly cloudy, with a low around 57. Calm wind.
Wednesday
Areas of fog before 8am. Otherwise, partly sunny, with a high near 80. South wind 3 to 6 mph.
Wednesday Night
A slight chance of showers between 4am and 5am. Partly cloudy, with a low around 63. Light south wind. Chance of precipitation is 20%.
Thursday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 83. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 65. Calm wind. Chance of precipitation is 60%.
Friday
A slight chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 81. Chance of precipitation is 70%.
Friday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Saturday
Showers likely and possibly a thunderstorm, mainly after 2pm. Mostly cloudy, with a high near 81. Chance of precipitation is 60%.
Saturday Night
Showers likely and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 62. Chance of precipitation is 60%.
Sunday
Mostly sunny, with a high near 81.
Sunday Night
A chance of showers. Partly cloudy, with a low around 62. Chance of precipitation is 30%.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 81. Chance of precipitation is 40%.
Monday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 61. Chance of precipitation is 60%.
Tuesday
Showers and thunderstorms likely. Mostly cloudy, with a high near 78. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
Apex NY
 42.07°N 75.24°W (Elev. 1499 ft)
Last Update:
6:58 pm EDT Aug 4, 2026
Forecast Valid:
9pm EDT Aug 4, 2026-6pm EDT Aug 11, 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