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.

Partly Cloudy

18°F

-8°C

Humidity 88%
Wind Speed N 3 mph
Barometer 30.47 in (1033.9 mb)
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Last update 29 Mar 4:56 am EDT
Extended Forecast for

3 Miles SSE Grant Mills NY

  • Today

    Today: Partly sunny, with a high near 44. Light west wind becoming southwest 8 to 13 mph in the morning. Winds could gust as high as 23 mph.

    High: 44 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 32. South wind around 7 mph.

    Low: 32 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 54. Southwest wind 7 to 13 mph, with gusts as high as 24 mph.

    High: 54 °F

    Partly Sunny

  • Monday Night

    Monday Night: A chance of showers, mainly after 2am. Mostly cloudy, with a low around 44. Southwest wind around 7 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 44 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 61. Southwest wind 7 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 61 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 51. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 51 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Showers likely. Mostly cloudy, with a high near 62. Chance of precipitation is 70%.

    High: 62 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of rain. Mostly cloudy, with a low around 34. Chance of precipitation is 50%.

    Low: 34 °F

    Chance Rain

  • Thursday

    Thursday: A chance of rain. Mostly cloudy, with a high near 46. Chance of precipitation is 50%.

    High: 46 °F

    Chance Rain

Detailed Forecast

Today
Partly sunny, with a high near 44. Light west wind becoming southwest 8 to 13 mph in the morning. Winds could gust as high as 23 mph.
Tonight
Mostly cloudy, with a low around 32. South wind around 7 mph.
Monday
Partly sunny, with a high near 54. Southwest wind 7 to 13 mph, with gusts as high as 24 mph.
Monday Night
A chance of showers, mainly after 2am. Mostly cloudy, with a low around 44. Southwest wind around 7 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
A chance of showers, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 61. Southwest wind 7 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 51. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers likely. Mostly cloudy, with a high near 62. Chance of precipitation is 70%.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 34. Chance of precipitation is 50%.
Thursday
A chance of rain. Mostly cloudy, with a high near 46. Chance of precipitation is 50%.
Thursday Night
Rain or freezing rain likely. Mostly cloudy, with a low around 34. Chance of precipitation is 60%.
Friday
Rain or freezing rain likely. Mostly cloudy, with a high near 46. Chance of precipitation is 70%.
Friday Night
Rain or freezing rain likely. Cloudy, with a low around 37. Chance of precipitation is 60%.
Saturday
A chance of rain. Mostly cloudy, with a high near 51. Chance of precipitation is 50%.
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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:
2:37 am EDT Mar 29, 2026
Forecast Valid:
5am EDT Mar 29, 2026-6pm EDT Apr 4, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation