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

Colchester NY

  • Tonight

    Tonight: Mostly clear, with a low around 50. Northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 50 °F

    Mostly Clear

  • Sunday

    Sunday: A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 74. Calm wind becoming west around 6 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: 74 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 51. Calm wind.

    Low: 51 °F

    Mostly Cloudy

  • Monday

    Monday: Showers likely, then showers and possibly a thunderstorm after 2pm. High near 69. Calm wind becoming southeast around 6 mph in the afternoon. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    High: 69 °F

    Showers
    Likely then
    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before 2am, then showers likely. Low around 55. Light and variable wind. Chance of precipitation is 90%.

    Low: 55 °F

    Showers

  • Tuesday

    Tuesday: Showers likely, mainly before 8am. Mostly cloudy, with a high near 74. Chance of precipitation is 60%.

    High: 74 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 50. Northwest wind 5 to 7 mph becoming calm in the evening.
Sunday
A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 74. Calm wind becoming west around 6 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.
Sunday Night
Mostly cloudy, with a low around 51. Calm wind.
Monday
Showers likely, then showers and possibly a thunderstorm after 2pm. High near 69. Calm wind becoming southeast around 6 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 55. Light and variable wind. Chance of precipitation is 90%.
Tuesday
Showers likely, mainly before 8am. Mostly cloudy, with a high near 74. Chance of precipitation is 60%.
Tuesday Night
Mostly clear, with a low around 52.
Wednesday
Sunny, with a high near 77.
Wednesday Night
Partly cloudy, with a low around 55.
Thursday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 77. Chance of precipitation is 60%.
Thursday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 57. Chance of precipitation is 60%.
Friday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 77. Chance of precipitation is 60%.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.
Saturday
A chance of showers. Partly sunny, with a high near 76. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Colchester NY
 42.16°N 75.08°W (Elev. 1424 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

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