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

59°F

15°C

Humidity 96%
Wind Speed NE 3 mph
Barometer 30.18 in (1021.5 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 5 Aug 2:56 am EDT
Extended Forecast for

2 Miles SW Grant Mills NY

  • Overnight

    Overnight: Mostly cloudy, with a low around 56. Calm wind.

    Low: 56 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 79. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 79 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A chance of showers, mainly after 2am. Mostly cloudy, with a low around 62. Calm wind. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 62 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 11am. Partly sunny, with a high near 81. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 63. Calm wind. Chance of precipitation is 60%.

    Low: 63 °F

    Showers
    Likely then
    Chance
    Showers

  • Friday

    Friday: Showers likely and possibly a thunderstorm, mainly after 2pm. Partly sunny, with a high near 81. Chance of precipitation is 70%.

    High: 81 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.

    Low: 62 °F

    Showers
    Likely

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 79. Chance of precipitation is 70%.

    High: 79 °F

    Partly Sunny
    then Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 8pm. Mostly cloudy, with a low around 61. Chance of precipitation is 60%.

    Low: 61 °F

    Showers
    Likely then
    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 56. Calm wind.
Wednesday
Mostly cloudy, with a high near 79. Calm wind becoming southwest around 5 mph in the afternoon.
Wednesday Night
A chance of showers, mainly after 2am. Mostly cloudy, with a low around 62. Calm wind. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after 11am. Partly sunny, with a high near 81. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 63. Calm wind. Chance of precipitation is 60%.
Friday
Showers likely and possibly a thunderstorm, mainly after 2pm. Partly sunny, with a high near 81. Chance of precipitation is 70%.
Friday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.
Saturday
Showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 79. Chance of precipitation is 70%.
Saturday Night
Showers likely and possibly a thunderstorm before 8pm. Mostly cloudy, with a low around 61. Chance of precipitation is 60%.
Sunday
Mostly sunny, with a high near 79.
Sunday Night
Partly cloudy, with a low around 59.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 79. Chance of precipitation is 40%.
Monday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.
Tuesday
Showers and thunderstorms likely. Partly sunny, with a high near 75. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Grant Mills NY
 42.06°N 74.71°W (Elev. 2201 ft)
Last Update:
2:30 am EDT Aug 5, 2026
Forecast Valid:
3am EDT Aug 5, 2026-6pm EDT Aug 11, 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