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.

Mostly Cloudy

62°F

17°C

Humidity 78%
Wind Speed SW 5 mph
Barometer 29.98 in (1015.1 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 31 Mar 10:56 am EDT
Extended Forecast for

3 Miles SSE Grant Mills NY

  • This Afternoon

    This Afternoon: A chance of rain, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 62. West wind around 10 mph, with gusts as high as 22 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 62 °F

    Chance Rain

  • Tonight

    Tonight: Rain and thunderstorms before 11pm, then rain likely. Low around 53. Southwest wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 53 °F

    Rain

  • Wednesday

    Wednesday: Rain, mainly after 8am. High near 56. West wind around 7 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 56 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain, mainly before 2am. Low around 38. North wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 38 °F

    Rain

  • Thursday

    Thursday: A chance of rain. Mostly cloudy, with a high near 44. Southeast wind 6 to 8 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 44 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A chance of rain before 2am. Cloudy, with a low around 38. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 38 °F

    Chance Rain

  • Friday

    Friday: A chance of rain after 2pm. Mostly cloudy, with a high near 63. Chance of precipitation is 30%.

    High: 63 °F

    Mostly Cloudy
    then Chance
    Rain

  • Friday Night

    Friday Night: A chance of rain before 2am. Mostly cloudy, with a low around 49. Chance of precipitation is 40%.

    Low: 49 °F

    Chance Rain

  • Saturday

    Saturday: A chance of rain after 2pm. Mostly cloudy, with a high near 68. Chance of precipitation is 50%.

    High: 68 °F

    Mostly Cloudy
    then Chance
    Rain

Detailed Forecast

This Afternoon
A chance of rain, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 62. West wind around 10 mph, with gusts as high as 22 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Rain and thunderstorms before 11pm, then rain likely. Low around 53. Southwest wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Rain, mainly after 8am. High near 56. West wind around 7 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain, mainly before 2am. Low around 38. North wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
A chance of rain. Mostly cloudy, with a high near 44. Southeast wind 6 to 8 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A chance of rain before 2am. Cloudy, with a low around 38. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday
A chance of rain after 2pm. Mostly cloudy, with a high near 63. Chance of precipitation is 30%.
Friday Night
A chance of rain before 2am. Mostly cloudy, with a low around 49. Chance of precipitation is 40%.
Saturday
A chance of rain after 2pm. Mostly cloudy, with a high near 68. Chance of precipitation is 50%.
Saturday Night
Rain likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.
Sunday
Rain likely. Mostly cloudy, with a high near 62. Chance of precipitation is 60%.
Sunday Night
Rain likely. Mostly cloudy, with a low around 32. Chance of precipitation is 60%.
Monday
A chance of rain and snow. Mostly cloudy, with a high near 41. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Grant Mills NY
 42.03°N 74.66°W (Elev. 2533 ft)
Last Update:
8:37 am EDT Mar 31, 2026
Forecast Valid:
1pm EDT Mar 31, 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