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.

Fog

67°F

19°C

Humidity 100%
Wind Speed Calm
Barometer 30.08 in (1017.6 mb)
Dewpoint 67°F (19°C)
Visibility 0.25 mi
Last update 8 Aug 1:56 am EDT
Extended Forecast for

4 Miles ESE Grant Mills NY

  • Overnight

    Overnight: Mostly cloudy, with a low around 63. Calm wind.

    Low: 63 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 79. West wind 3 to 7 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 79 °F

    Partly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, mainly before 10pm. Partly cloudy, with a low around 62. West wind 3 to 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy through mid morning, then gradual clearing, with a high near 79. West wind 5 to 8 mph.

    High: 79 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 56. Light northwest wind.

    Low: 56 °F

    Mostly Clear

  • Monday

    Monday: A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 81. Chance of precipitation is 20%.

    High: 81 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers between 8pm and 2am. Mostly cloudy, with a low around 60. Chance of precipitation is 30%.

    Low: 60 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 77. Chance of precipitation is 50%.

    High: 77 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 56. Chance of precipitation is 40%.

    Low: 56 °F

    Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Overnight
Mostly cloudy, with a low around 63. Calm wind.
Saturday
A chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 79. West wind 3 to 7 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers and thunderstorms, mainly before 10pm. Partly cloudy, with a low around 62. West wind 3 to 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Mostly cloudy through mid morning, then gradual clearing, with a high near 79. West wind 5 to 8 mph.
Sunday Night
Mostly clear, with a low around 56. Light northwest wind.
Monday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 81. Chance of precipitation is 20%.
Monday Night
A chance of showers between 8pm and 2am. Mostly cloudy, with a low around 60. Chance of precipitation is 30%.
Tuesday
A chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 77. Chance of precipitation is 50%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 56. Chance of precipitation is 40%.
Wednesday
A chance of showers after 2pm. Partly sunny, with a high near 75. Chance of precipitation is 40%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 74. Chance of precipitation is 30%.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 51. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 71.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ESE Grant Mills NY
 42.07°N 74.62°W (Elev. 2100 ft)
Last Update:
8:37 pm EDT Aug 7, 2026
Forecast Valid:
2am EDT Aug 8, 2026-6pm EDT Aug 14, 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