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.

Overcast

60°F

16°C

Humidity 50%
Wind Speed Calm
Barometer 30.04 in (1017.7 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 30 Mar 6:56 pm EDT
Extended Forecast for

5 Miles ESE Grant Mills NY

  • Tonight

    Tonight: Showers and possibly a thunderstorm. Low around 46. West wind around 17 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 46 °F

    Chance
    Showers then
    Showers

  • Tuesday

    Tuesday: Showers and thunderstorms likely before 9am, then showers likely and possibly a thunderstorm between 9am and 11am, then a chance of showers and thunderstorms after 11am. Mostly cloudy, with a high near 58. Southwest wind 15 to 17 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 58 °F

    Showers
    Likely then
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 9pm, then showers likely and possibly a thunderstorm between 9pm and 3am, then showers likely after 3am. Mostly cloudy, with a low around 51. Breezy, with a southwest wind 18 to 22 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 51 °F

    Showers
    Likely and
    Breezy

  • Wednesday

    Wednesday: Showers. High near 56. Breezy, with a west wind 16 to 22 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 56 °F

    Showers and
    Breezy

  • Wednesday Night

    Wednesday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 35. North wind 14 to 17 mph becoming east after midnight. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 35 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 45. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 45 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of rain. Cloudy, with a low around 39. Chance of precipitation is 40%.

    Low: 39 °F

    Chance Rain

  • Friday

    Friday: A chance of rain. Mostly cloudy, with a high near 62. Chance of precipitation is 50%.

    High: 62 °F

    Chance Rain

  • Friday Night

    Friday Night: A chance of rain before 2am. Mostly cloudy, with a low around 48. Chance of precipitation is 50%.

    Low: 48 °F

    Chance Rain

Detailed Forecast

Tonight
Showers and possibly a thunderstorm. Low around 46. West wind around 17 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
Showers and thunderstorms likely before 9am, then showers likely and possibly a thunderstorm between 9am and 11am, then a chance of showers and thunderstorms after 11am. Mostly cloudy, with a high near 58. Southwest wind 15 to 17 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
A chance of showers and thunderstorms before 9pm, then showers likely and possibly a thunderstorm between 9pm and 3am, then showers likely after 3am. Mostly cloudy, with a low around 51. Breezy, with a southwest wind 18 to 22 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Showers. High near 56. Breezy, with a west wind 16 to 22 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 35. North wind 14 to 17 mph becoming east after midnight. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 45. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of rain. Cloudy, with a low around 39. Chance of precipitation is 40%.
Friday
A chance of rain. Mostly cloudy, with a high near 62. Chance of precipitation is 50%.
Friday Night
A chance of rain before 2am. Mostly cloudy, with a low around 48. Chance of precipitation is 50%.
Saturday
A chance of rain after 2pm. Mostly cloudy, with a high near 63. Chance of precipitation is 50%.
Saturday Night
Rain likely. Mostly cloudy, with a low around 46. Chance of precipitation is 60%.
Sunday
Rain likely. Mostly cloudy, with a high near 56. Chance of precipitation is 70%.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 31. Chance of precipitation is 50%.
Monday
A chance of snow. Partly sunny, with a high near 43. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles ESE Grant Mills NY
 42.04°N 74.6°W (Elev. 3593 ft)
Last Update:
2:49 pm EDT Mar 30, 2026
Forecast Valid:
7pm EDT Mar 30, 2026-6pm EDT Apr 6, 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