Current conditions at

Monticello, Sullivan County International Airport (KMSV)

Lat: 41.7°NLon: 74.8°WElev: 1404ft.

Partly Cloudy

18°F

-8°C

Humidity 88%
Wind Speed N 3 mph
Barometer 30.47 in (1033.9 mb)
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Last update 29 Mar 4:56 am EDT
Extended Forecast for

Tennanah Lake NY

  • Today

    Today: Mostly sunny, with a high near 46. Southwest wind 6 to 13 mph.

    High: 46 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 34. South wind around 9 mph.

    Low: 34 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 53. Southwest wind 8 to 13 mph.

    High: 53 °F

    Partly Sunny

  • Monday Night

    Monday Night: A chance of showers, mainly after 2am.  Mostly cloudy, with a low around 46. Southwest wind 7 to 9 mph.  Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 46 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers.  Mostly cloudy, with a high near 63. Southwest wind around 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 50%.

    High: 63 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 53. Chance of precipitation is 40%.

    Low: 53 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Showers likely, with thunderstorms also possible after 2pm.  Mostly cloudy, with a high near 64. Chance of precipitation is 60%.

    High: 64 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of rain showers before 2am, then a chance of rain and snow showers. Some thunder is also possible.  Mostly cloudy, with a low around 37. Chance of precipitation is 50%.

    Low: 37 °F

    Chance
    T-storms then
    Chance
    Rain/Snow

  • Thursday

    Thursday: A chance of rain and snow showers before 8am, then a chance of rain showers.  Mostly cloudy, with a high near 48. Chance of precipitation is 50%.

    High: 48 °F

    Chance
    Rain/Snow
    then Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 46. Southwest wind 6 to 13 mph.
Tonight
Partly cloudy, with a low around 34. South wind around 9 mph.
Monday
Partly sunny, with a high near 53. Southwest wind 8 to 13 mph.
Monday Night
A chance of showers, mainly after 2am. Mostly cloudy, with a low around 46. Southwest wind 7 to 9 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
A chance of showers. Mostly cloudy, with a high near 63. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 53. Chance of precipitation is 40%.
Wednesday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 64. Chance of precipitation is 60%.
Wednesday Night
A chance of rain showers before 2am, then a chance of rain and snow showers. Some thunder is also possible. Mostly cloudy, with a low around 37. Chance of precipitation is 50%.
Thursday
A chance of rain and snow showers before 8am, then a chance of rain showers. Mostly cloudy, with a high near 48. Chance of precipitation is 50%.
Thursday Night
Rain showers likely before 2am, then rain or freezing rain likely. Mostly cloudy, with a low around 36. Chance of precipitation is 70%.
Friday
Rain or freezing rain likely. Mostly cloudy, with a high near 47. Chance of precipitation is 70%.
Friday Night
Showers likely. Cloudy, with a low around 39. Chance of precipitation is 60%.
Saturday
A chance of showers. Mostly cloudy, with a high near 52. Chance of precipitation is 50%.
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ABOUT THIS FORECAST

 
Point Forecast:
Tennanah Lake NY
 41.88°N 74.95°W (Elev. 2280 ft)
4:57 am EDT Mar 29, 2026
5am EDT Mar 29, 2026-6pm EDT Apr 4, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database