National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Monticello, Sullivan County International Airport (KMSV)

Lat: 41.7°NLon: 74.8°WElev: 1404ft.

Fair

13°F

-11°C

Humidity 64%
Wind Speed W 9 mph
Barometer 29.99 in (1017.9 mb)
Dewpoint 3°F (-16°C)
Visibility 10.00 mi
Wind Chill1°F (-17°C)
Last update 19 Jan 11:56 pm EST
Extended Forecast for

Unionville NY

  • Overnight

    Overnight: Mostly clear, with a low around 6. Wind chill values as low as -3. West wind around 9 mph, with gusts as high as 24 mph.

    Low: 6 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 15. Wind chill values as low as -7. West wind 7 to 11 mph, with gusts as high as 25 mph.

    High: 15 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 2. West wind around 5 mph becoming calm in the evening.

    Low: 2 °F

    Mostly Clear

  • Wednesday

    Wednesday: Increasing clouds, with a high near 25. Calm wind becoming south 5 to 8 mph in the morning. Winds could gust as high as 20 mph.

    High: 25 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 19. Southwest wind around 6 mph.

    Low: 19 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 36.

    High: 36 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 13.

    Low: 13 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 21.

    High: 21 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around -1.

    Low: -1 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 6. Wind chill values as low as -3. West wind around 9 mph, with gusts as high as 24 mph.
Tuesday
Mostly sunny, with a high near 15. Wind chill values as low as -7. West wind 7 to 11 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 2. West wind around 5 mph becoming calm in the evening.
Wednesday
Increasing clouds, with a high near 25. Calm wind becoming south 5 to 8 mph in the morning. Winds could gust as high as 20 mph.
Wednesday Night
Mostly cloudy, with a low around 19. Southwest wind around 6 mph.
Thursday
Partly sunny, with a high near 36.
Thursday Night
Partly cloudy, with a low around 13.
Friday
Partly sunny, with a high near 21.
Friday Night
Mostly cloudy, with a low around -1.
Saturday
Partly sunny and cold, with a high near 9.
Saturday Night
Mostly cloudy, with a low around -3.
Sunday
Partly sunny, with a high near 11.
Sunday Night
Partly cloudy, with a low around 0.
Monday
Mostly sunny, with a high near 15.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Unionville NY
 41.86°N 74.54°W (Elev. 1378 ft)
Last Update:
3:23 pm EST Jan 19, 2026
Forecast Valid:
12am EST Jan 20, 2026-6pm EST Jan 26, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation