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.

Mostly Cloudy

71°F

22°C

Humidity 42%
Wind Speed W 14 G 17 mph
Barometer 29.82 in (1009.2 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 20 Jun 5:56 pm EDT
Extended Forecast for

2 Miles SW Grant Mills NY

  • Tonight

    Tonight: Mostly clear, with a low around 48. Northwest wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 20 mph.

    Low: 48 °F

    Mostly Clear

  • Sunday

    Sunday: A chance of showers and thunderstorms, mainly between 2pm and 3pm. Mostly sunny, with a high near 70. Calm wind becoming northwest 5 to 7 mph in the morning. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 70 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 50. Light north wind.

    Low: 50 °F

    Mostly Cloudy

  • Monday

    Monday: Showers likely, then showers and possibly a thunderstorm after 2pm. High near 65. Calm wind becoming southeast 5 to 7 mph in the afternoon. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    High: 65 °F

    Showers
    Likely then
    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before 2am, then showers likely. Low around 53. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 90%.

    Low: 53 °F

    Showers

  • Tuesday

    Tuesday: Showers likely, mainly before 8am. Partly sunny, with a high near 70. Chance of precipitation is 60%.

    High: 70 °F

    Showers
    Likely then
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 48. Northwest wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 20 mph.
Sunday
A chance of showers and thunderstorms, mainly between 2pm and 3pm. Mostly sunny, with a high near 70. Calm wind becoming northwest 5 to 7 mph in the morning. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Mostly cloudy, with a low around 50. Light north wind.
Monday
Showers likely, then showers and possibly a thunderstorm after 2pm. High near 65. Calm wind becoming southeast 5 to 7 mph in the afternoon. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Monday Night
Showers and possibly a thunderstorm before 2am, then showers likely. Low around 53. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 90%.
Tuesday
Showers likely, mainly before 8am. Partly sunny, with a high near 70. Chance of precipitation is 60%.
Tuesday Night
Mostly clear, with a low around 51.
Wednesday
Sunny, with a high near 74.
Wednesday Night
Partly cloudy, with a low around 53.
Thursday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 73. Chance of precipitation is 50%.
Thursday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 54. Chance of precipitation is 60%.
Friday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 73. Chance of precipitation is 60%.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 53. Chance of precipitation is 60%.
Saturday
A chance of showers. Mostly sunny, with a high near 73. Chance of precipitation is 30%.
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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:
2:44 pm EDT Jun 20, 2026
Forecast Valid:
6pm EDT Jun 20, 2026-6pm EDT Jun 27, 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