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

66°F

19°C

Humidity 78%
Wind Speed Calm
Barometer 30.15 in (1020.2 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 17 May 10:56 pm EDT
Extended Forecast for

Gregorytown NY

  • Tonight

    Tonight: Partly cloudy, with a low around 59. Calm wind.

    Low: 59 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, then gradually becoming sunny, with a high near 87. Calm wind becoming south around 6 mph in the afternoon.

    High: 87 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms between 9pm and 11pm. Partly cloudy, with a low around 64. Calm wind. Chance of precipitation is 20%.

    Low: 64 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Calm wind becoming southwest 5 to 7 mph in the morning. Chance of precipitation is 20%.

    High: 88 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 65. Light southwest wind. Chance of precipitation is 20%.

    Low: 65 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of thunderstorms, then showers and possibly a thunderstorm after 8am. High near 79. Chance of precipitation is 80%.

    High: 79 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers likely before 8pm. Mostly cloudy, with a low around 42. Chance of precipitation is 60%.

    Low: 42 °F

    Showers
    Likely then
    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 59. Calm wind.
Monday
Partly sunny, then gradually becoming sunny, with a high near 87. Calm wind becoming south around 6 mph in the afternoon.
Monday Night
A slight chance of showers and thunderstorms between 9pm and 11pm. Partly cloudy, with a low around 64. Calm wind. Chance of precipitation is 20%.
Tuesday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Calm wind becoming southwest 5 to 7 mph in the morning. Chance of precipitation is 20%.
Tuesday Night
A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 65. Light southwest wind. Chance of precipitation is 20%.
Wednesday
A slight chance of thunderstorms, then showers and possibly a thunderstorm after 8am. High near 79. Chance of precipitation is 80%.
Wednesday Night
Showers likely before 8pm. Mostly cloudy, with a low around 42. Chance of precipitation is 60%.
Thursday
Mostly sunny, with a high near 65.
Thursday Night
Partly cloudy, with a low around 42.
Friday
A chance of showers after 2pm. Partly sunny, with a high near 65. Chance of precipitation is 30%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 45. Chance of precipitation is 40%.
Saturday
A chance of showers. Mostly cloudy, with a high near 66. Chance of precipitation is 50%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 48. Chance of precipitation is 50%.
Sunday
Showers likely. Mostly cloudy, with a high near 70. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
Gregorytown NY
 42.03°N 75.04°W (Elev. 1096 ft)
Last Update:
2:30 pm EDT May 17, 2026
Forecast Valid:
11pm EDT May 17, 2026-6pm EDT May 24, 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