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 78%
Wind Speed Calm
Barometer 30.22 in (1024.9 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Last update 8 Jan 5:56 pm EST
Extended Forecast for

Grant Mills NY

  • Tonight

    Tonight: Increasing clouds, with a low around 27. Calm wind becoming south around 6 mph after midnight.

    Low: 27 °F

    Increasing
    Clouds

  • Friday

    Friday: Showers likely, mainly after 3pm. Increasing clouds, with a high near 45. South wind around 10 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 45 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Friday Night

    Friday Night: A chance of showers, mainly before 7pm. Cloudy, with a low around 31. South wind 6 to 9 mph becoming northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 31 °F

    Chance
    Showers

  • Saturday

    Saturday: Showers likely after 1pm. Cloudy, with a high near 40. Light and variable wind becoming east around 6 mph in the morning. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 40 °F

    Cloudy then
    Showers
    Likely

  • Saturday Night

    Saturday Night: Rain showers before 4am, then a chance of snow showers. Low around 31. Southeast wind around 7 mph becoming southwest after midnight. Chance of precipitation is 80%.

    Low: 31 °F

    Showers then
    Rain/Snow

  • Sunday

    Sunday: A chance of snow showers. Mostly cloudy, with a high near 36. Chance of precipitation is 50%.

    High: 36 °F

    Chance Snow
    Showers

  • Sunday Night

    Sunday Night: A chance of snow showers before 1am. Mostly cloudy, with a low around 18. Chance of precipitation is 30%.

    Low: 18 °F

    Chance Snow
    Showers

  • Monday

    Monday: Partly sunny, with a high near 29.

    High: 29 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 22.

    Low: 22 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 27. Calm wind becoming south around 6 mph after midnight.
Friday
Showers likely, mainly after 3pm. Increasing clouds, with a high near 45. South wind around 10 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
A chance of showers, mainly before 7pm. Cloudy, with a low around 31. South wind 6 to 9 mph becoming northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Showers likely after 1pm. Cloudy, with a high near 40. Light and variable wind becoming east around 6 mph in the morning. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
Rain showers before 4am, then a chance of snow showers. Low around 31. Southeast wind around 7 mph becoming southwest after midnight. Chance of precipitation is 80%.
Sunday
A chance of snow showers. Mostly cloudy, with a high near 36. Chance of precipitation is 50%.
Sunday Night
A chance of snow showers before 1am. Mostly cloudy, with a low around 18. Chance of precipitation is 30%.
Monday
Partly sunny, with a high near 29.
Monday Night
Mostly cloudy, with a low around 22.
Tuesday
Mostly sunny, with a high near 35.
Tuesday Night
Mostly cloudy, with a low around 26.
Wednesday
A chance of snow showers. Mostly cloudy, with a high near 35. Chance of precipitation is 30%.
Wednesday Night
A chance of snow showers. Cloudy, with a low around 21. Chance of precipitation is 40%.
Thursday
A chance of snow showers. Mostly cloudy, with a high near 27. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grant Mills NY
 42.07°N 74.68°W (Elev. 2320 ft)
Last Update:
6:04 pm EST Jan 8, 2026
Forecast Valid:
6pm EST Jan 8, 2026-6pm EST Jan 15, 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