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

35°F

2°C

Humidity 31%
Wind Speed S 8 mph
Barometer 30.26 in (1026.8 mb)
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Wind Chill28°F (-2°C)
Last update 18 Mar 3:56 pm EDT
Extended Forecast for

5 Miles ESE Grant Mills NY

  • Tonight

    Tonight: Increasing clouds, with a low around 15. South wind 9 to 14 mph.

    Low: 15 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly cloudy, with a high near 32. South wind around 15 mph.

    High: 32 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Cloudy, then gradually becoming partly cloudy, with a low around 24. Southwest wind 10 to 13 mph becoming west after midnight.

    Low: 24 °F

    Decreasing
    Clouds

  • Friday

    Friday: A chance of rain and snow after 2pm. Mostly cloudy, with a high near 42. West wind 9 to 11 mph becoming southwest in the afternoon. Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 42 °F

    Partly Sunny
    then Chance
    Rain/Snow

  • Friday Night

    Friday Night: Rain likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 31. South wind around 16 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 31 °F

    Rain Likely

  • Saturday

    Saturday: A chance of rain before 8am, then a slight chance of showers between 8am and 2pm. Partly sunny, with a high near 46. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 46 °F

    Chance Rain

  • Saturday Night

    Saturday Night: A chance of rain and snow after 2am. Mostly cloudy, with a low around 32. Chance of precipitation is 30%.

    Low: 32 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Sunday

    Sunday: A chance of rain and snow before 8am, then a chance of rain between 8am and 2pm, then a chance of rain and snow after 2pm. Mostly cloudy, with a high near 47. Chance of precipitation is 50%.

    High: 47 °F

    Chance
    Rain/Snow

  • Sunday Night

    Sunday Night: A chance of snow before 2am. Mostly cloudy, with a low around 22. Chance of precipitation is 30%.

    Low: 22 °F

    Chance Snow

Detailed Forecast

Tonight
Increasing clouds, with a low around 15. South wind 9 to 14 mph.
Thursday
Mostly cloudy, with a high near 32. South wind around 15 mph.
Thursday Night
Cloudy, then gradually becoming partly cloudy, with a low around 24. Southwest wind 10 to 13 mph becoming west after midnight.
Friday
A chance of rain and snow after 2pm. Mostly cloudy, with a high near 42. West wind 9 to 11 mph becoming southwest in the afternoon. Chance of precipitation is 40%. Little or no snow accumulation expected.
Friday Night
Rain likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 31. South wind around 16 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
A chance of rain before 8am, then a slight chance of showers between 8am and 2pm. Partly sunny, with a high near 46. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
A chance of rain and snow after 2am. Mostly cloudy, with a low around 32. Chance of precipitation is 30%.
Sunday
A chance of rain and snow before 8am, then a chance of rain between 8am and 2pm, then a chance of rain and snow after 2pm. Mostly cloudy, with a high near 47. Chance of precipitation is 50%.
Sunday Night
A chance of snow before 2am. Mostly cloudy, with a low around 22. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 31.
Monday Night
Partly cloudy, with a low around 15.
Tuesday
Partly sunny, with a high near 33.
Tuesday Night
Mostly cloudy, with a low around 19.
Wednesday
Partly sunny, with a high near 37.
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Forecast Area
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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:
2:36 pm EDT Mar 18, 2026
Forecast Valid:
4pm EDT Mar 18, 2026-6pm EDT Mar 25, 2026
 
Forecast Discussion
 
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Additional Resources

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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