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.

Light Rain

52°F

11°C

Humidity 69%
Wind Speed NW 5 mph
Barometer 30.20 in (1022.8 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 21 May 7:56 am EDT
Extended Forecast for

Unionville NY

  • Today

    Today: Mostly cloudy, with a high near 66. Light and variable wind.

    High: 66 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 41. Calm wind.

    Low: 41 °F

    Decreasing
    Clouds

  • Friday

    Friday: Mostly sunny, with a high near 68. East wind around 6 mph.

    High: 68 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A slight chance of showers after 2am. Increasing clouds, with a low around 44. Calm wind. Chance of precipitation is 20%.

    Low: 44 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Saturday

    Saturday: Showers, mainly after 8am. High near 54. Southeast wind 6 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.

    High: 54 °F

    Showers

  • Saturday Night

    Saturday Night: Showers. Low around 41. Chance of precipitation is 90%.

    Low: 41 °F

    Showers

  • Sunday

    Sunday: Showers likely before 2pm. Mostly cloudy, with a high near 59. Chance of precipitation is 70%.

    High: 59 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: Cloudy, with a low around 48.

    Low: 48 °F

    Cloudy

  • Memorial Day

    Memorial Day: A chance of showers. Mostly cloudy, with a high near 73. Chance of precipitation is 50%.

    High: 73 °F

    Chance
    Showers

Detailed Forecast

Today
Mostly cloudy, with a high near 66. Light and variable wind.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 41. Calm wind.
Friday
Mostly sunny, with a high near 68. East wind around 6 mph.
Friday Night
A slight chance of showers after 2am. Increasing clouds, with a low around 44. Calm wind. Chance of precipitation is 20%.
Saturday
Showers, mainly after 8am. High near 54. Southeast wind 6 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.
Saturday Night
Showers. Low around 41. Chance of precipitation is 90%.
Sunday
Showers likely before 2pm. Mostly cloudy, with a high near 59. Chance of precipitation is 70%.
Sunday Night
Cloudy, with a low around 48.
Memorial Day
A chance of showers. Mostly cloudy, with a high near 73. Chance of precipitation is 50%.
Monday Night
Mostly cloudy, with a low around 52.
Tuesday
Partly sunny, with a high near 79.
Tuesday Night
Partly cloudy, with a low around 54.
Wednesday
Mostly sunny, with a high near 79.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Unionville NY
 41.86°N 74.57°W (Elev. 1181 ft)
Last Update:
2:30 am EDT May 21, 2026
Forecast Valid:
8am EDT May 21, 2026-6pm EDT May 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