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

26°F

-3°C

Humidity 75%
Wind Speed W 5 mph
Barometer 30.02 in (1018.0 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill20°F (-7°C)
Last update 13 Jan 12:56 am EST
Extended Forecast for

Long Flat NY

  • Overnight

    Overnight: Partly cloudy, with a low around 25. Southwest wind around 5 mph.

    Low: 25 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 38. Southwest wind 3 to 7 mph.

    High: 38 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of snow showers between 10pm and 11pm. Mostly cloudy, with a low around 33. South wind 6 to 9 mph. Chance of precipitation is 20%.

    Low: 33 °F

    Slight Chance
    Snow Showers
    then Mostly
    Cloudy

  • Wednesday

    Wednesday: A chance of rain and snow, mainly after 1pm. Mostly cloudy, with a high near 39. South wind around 6 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 39 °F

    Slight Chance
    Rain/Snow
    then Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Rain and snow, becoming all snow after 1am. Low around 16. South wind 5 to 9 mph becoming northwest after midnight. Chance of precipitation is 80%.

    Low: 16 °F

    Rain/Snow

  • Thursday

    Thursday: A chance of snow. Mostly cloudy, with a high near 19. Chance of precipitation is 40%.

    High: 19 °F

    Chance Snow

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 7.

    Low: 7 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 22.

    High: 22 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 16.

    Low: 16 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 25. Southwest wind around 5 mph.
Tuesday
Mostly sunny, with a high near 38. Southwest wind 3 to 7 mph.
Tuesday Night
A slight chance of snow showers between 10pm and 11pm. Mostly cloudy, with a low around 33. South wind 6 to 9 mph. Chance of precipitation is 20%.
Wednesday
A chance of rain and snow, mainly after 1pm. Mostly cloudy, with a high near 39. South wind around 6 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Wednesday Night
Rain and snow, becoming all snow after 1am. Low around 16. South wind 5 to 9 mph becoming northwest after midnight. Chance of precipitation is 80%.
Thursday
A chance of snow. Mostly cloudy, with a high near 19. Chance of precipitation is 40%.
Thursday Night
Mostly cloudy, with a low around 7.
Friday
Partly sunny, with a high near 22.
Friday Night
Mostly cloudy, with a low around 16.
Saturday
A chance of snow after 1pm. Partly sunny, with a high near 32. Chance of precipitation is 30%.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 17. Chance of precipitation is 30%.
Sunday
A chance of snow. Partly sunny, with a high near 24. Chance of precipitation is 30%.
Sunday Night
Mostly cloudy, with a low around 11.
M.L.King Day
A chance of snow. Mostly cloudy, with a high near 20. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Long Flat NY
 42.01°N 75.05°W (Elev. 1900 ft)
Last Update:
12:33 am EST Jan 13, 2026
Forecast Valid:
1am EST Jan 13, 2026-6pm EST Jan 19, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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