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

63°F

17°C

Humidity 94%
Wind Speed W 9 mph
Barometer 29.85 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 14 Oct 5:24 am EDT
Extended Forecast for

Lake Delaware NY

  • Today

    Today: Mostly cloudy, with a high near 66. West wind 6 to 8 mph.

    High: 66 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 39. Northwest wind 6 to 8 mph.

    Low: 39 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 61. North wind around 5 mph becoming calm in the morning.

    High: 61 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Showers, with thunderstorms also possible after 5am. Low around 43. Calm wind becoming south 5 to 8 mph after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 43 °F

    Slight Chance
    Showers then
    Showers

  • Friday

    Friday: Showers and possibly a thunderstorm. High near 66. South wind 8 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.

    High: 66 °F

    Showers

  • Friday Night

    Friday Night: Rain showers likely before 2am, then a chance of rain and snow showers. Mostly cloudy, with a low around 28. Chance of precipitation is 70%.

    Low: 28 °F

    Showers
    Likely then
    Rain/Snow
    Likely

  • Saturday

    Saturday: A chance of snow showers before 8am. Mostly sunny, with a high near 40. Chance of precipitation is 30%.

    High: 40 °F

    Chance Snow
    Showers then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 27.

    Low: 27 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 66. West wind 6 to 8 mph.
Tonight
Mostly cloudy, with a low around 39. Northwest wind 6 to 8 mph.
Thursday
Mostly sunny, with a high near 61. North wind around 5 mph becoming calm in the morning.
Thursday Night
Showers, with thunderstorms also possible after 5am. Low around 43. Calm wind becoming south 5 to 8 mph after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Showers and possibly a thunderstorm. High near 66. South wind 8 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
Friday Night
Rain showers likely before 2am, then a chance of rain and snow showers. Mostly cloudy, with a low around 28. Chance of precipitation is 70%.
Saturday
A chance of snow showers before 8am. Mostly sunny, with a high near 40. Chance of precipitation is 30%.
Saturday Night
Mostly clear, with a low around 27.
Sunday
Sunny, with a high near 55.
Sunday Night
Mostly clear, with a low around 31.
Monday
Mostly sunny, with a high near 61.
Monday Night
Mostly cloudy, with a low around 38.
Tuesday
Partly sunny, with a high near 62.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lake Delaware NY
 42.24°N 74.82°W (Elev. 1650 ft)
Last Update:
2:30 am EDT Oct 14, 2026
Forecast Valid:
8am EDT Oct 14, 2026-6pm EDT Oct 20, 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