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

26°F

-3°C

Humidity 60%
Wind Speed S 7 mph
Barometer 30.25 in (1026.1 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill18°F (-8°C)
Last update 19 Mar 1:56 am EDT
Extended Forecast for

3 Miles SSE Grant Mills NY

  • Overnight

    Overnight: Mostly cloudy, with a low around 18. South wind around 7 mph.

    Low: 18 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 34. South wind 8 to 10 mph.

    High: 34 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 24. Southwest wind around 5 mph becoming northwest after midnight.

    Low: 24 °F

    Mostly Cloudy

  • Friday

    Friday: Showers likely after 2pm. Mostly cloudy, with a high near 46. Light west wind becoming south 6 to 11 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 46 °F

    Mostly Cloudy
    then Showers
    Likely

  • Friday Night

    Friday Night: Showers likely, mainly before 2am. Cloudy, with a low around 33. Southwest wind 7 to 10 mph becoming west after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 33 °F

    Showers
    Likely

  • Saturday

    Saturday: A chance of showers before 8am. Partly sunny, with a high near 47. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 47 °F

    Chance
    Showers then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of snow before 8am, then a chance of rain and snow between 8am and 2pm, then rain likely after 2pm. Mostly cloudy, with a high near 48. Chance of precipitation is 60%.

    High: 48 °F

    Chance
    Rain/Snow
    then
    Rain/Snow
    Likely

  • Sunday Night

    Sunday Night: Rain likely before 8pm, then rain and snow likely between 8pm and 2am, then a chance of rain, snow, and freezing rain after 2am. Mostly cloudy, with a low around 27. Chance of precipitation is 60%.

    Low: 27 °F

    Wintry Mix
    Likely

Detailed Forecast

Overnight
Mostly cloudy, with a low around 18. South wind around 7 mph.
Thursday
Mostly cloudy, with a high near 34. South wind 8 to 10 mph.
Thursday Night
Mostly cloudy, with a low around 24. Southwest wind around 5 mph becoming northwest after midnight.
Friday
Showers likely after 2pm. Mostly cloudy, with a high near 46. Light west wind becoming south 6 to 11 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Showers likely, mainly before 2am. Cloudy, with a low around 33. Southwest wind 7 to 10 mph becoming west after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
A chance of showers before 8am. Partly sunny, with a high near 47. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Mostly cloudy, with a low around 29.
Sunday
A chance of snow before 8am, then a chance of rain and snow between 8am and 2pm, then rain likely after 2pm. Mostly cloudy, with a high near 48. Chance of precipitation is 60%.
Sunday Night
Rain likely before 8pm, then rain and snow likely between 8pm and 2am, then a chance of rain, snow, and freezing rain after 2am. Mostly cloudy, with a low around 27. Chance of precipitation is 60%.
Monday
A chance of rain, snow, and freezing rain before 8am, then a chance of snow between 8am and 2pm. Mostly cloudy, with a high near 35. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 13.
Tuesday
Mostly sunny, with a high near 33.
Tuesday Night
Mostly cloudy, with a low around 18.
Wednesday
Partly sunny, with a high near 36.
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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:
2:36 am EDT Mar 19, 2026
Forecast Valid:
2am EDT Mar 19, 2026-6pm EDT Mar 25, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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