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

33°F

1°C

Humidity 70%
Wind Speed N 7 mph
Barometer 30.41 in (1030.7 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 12 Apr 2:56 am EDT
Extended Forecast for

3 Miles SSE Grant Mills NY

  • Overnight

    Overnight: Mostly clear, with a low around 27. Light north wind.

    Low: 27 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 51. Light southeast wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 51 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A slight chance of showers before 2am. Mostly cloudy, with a low around 40. South wind 9 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.

    Low: 40 °F

    Slight Chance
    Showers

  • Monday

    Monday: Showers likely, mainly after 2pm. Mostly cloudy, with a high near 61. Southwest wind 10 to 13 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 61 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Showers likely, mainly before 8pm. Mostly cloudy, with a low around 52. West wind 6 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 52 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 70. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 70 °F

    Mostly Cloudy
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers before 2am. Mostly cloudy, with a low around 54. Chance of precipitation is 40%.

    Low: 54 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 72. Chance of precipitation is 50%.

    High: 72 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, then showers likely after 8pm. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.

    Low: 55 °F

    Showers
    Likely

Detailed Forecast

Overnight
Mostly clear, with a low around 27. Light north wind.
Sunday
Mostly sunny, with a high near 51. Light southeast wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Sunday Night
A slight chance of showers before 2am. Mostly cloudy, with a low around 40. South wind 9 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Monday
Showers likely, mainly after 2pm. Mostly cloudy, with a high near 61. Southwest wind 10 to 13 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Showers likely, mainly before 8pm. Mostly cloudy, with a low around 52. West wind 6 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
A chance of showers between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 70. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A chance of showers before 2am. Mostly cloudy, with a low around 54. Chance of precipitation is 40%.
Wednesday
A chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 72. Chance of precipitation is 50%.
Wednesday Night
A chance of showers and thunderstorms, then showers likely after 8pm. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.
Thursday
A chance of showers. Mostly cloudy, with a high near 73. Chance of precipitation is 40%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 52. Chance of precipitation is 40%.
Friday
Partly sunny, with a high near 68.
Friday Night
Partly cloudy, with a low around 47.
Saturday
A chance of showers. Mostly sunny, with a high near 70. Chance of precipitation is 30%.
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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 Apr 12, 2026
Forecast Valid:
3am EDT Apr 12, 2026-6pm EDT Apr 18, 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