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.

Overcast

39°F

4°C

Humidity 76%
Wind Speed W 7 mph
Barometer 29.89 in (1013.2 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 5 Apr 10:56 pm EDT
Extended Forecast for

Tennanah Lake NY

  • Tonight

    Tonight: Mostly cloudy, with a low around 28. Northwest wind around 15 mph.

    Low: 28 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 40. Northwest wind 10 to 15 mph.

    High: 40 °F

    Partly Sunny

  • Monday Night

    Monday Night: A chance of rain and snow showers before 11pm, then a chance of snow showers. Mostly cloudy, with a low around 27. West wind 6 to 8 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    Low: 27 °F

    Chance
    Rain/Snow
    then Chance
    Snow Showers

  • Tuesday

    Tuesday: A slight chance of snow showers before 2pm. Partly sunny, with a high near 34. Northwest wind around 13 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    High: 34 °F

    Slight Chance
    Snow Showers

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 17. Northwest wind 7 to 11 mph.

    Low: 17 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 44.

    High: 44 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 26.

    Low: 26 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 52.

    High: 52 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 28. Northwest wind around 15 mph.
Monday
Partly sunny, with a high near 40. Northwest wind 10 to 15 mph.
Monday Night
A chance of rain and snow showers before 11pm, then a chance of snow showers. Mostly cloudy, with a low around 27. West wind 6 to 8 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Tuesday
A slight chance of snow showers before 2pm. Partly sunny, with a high near 34. Northwest wind around 13 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Tuesday Night
Mostly clear, with a low around 17. Northwest wind 7 to 11 mph.
Wednesday
Sunny, with a high near 44.
Wednesday Night
Mostly clear, with a low around 26.
Thursday
Mostly sunny, with a high near 52.
Thursday Night
Partly cloudy, with a low around 36.
Friday
Partly sunny, with a high near 62.
Friday Night
Mostly cloudy, with a low around 43.
Saturday
Partly sunny, with a high near 59.
Saturday Night
Partly cloudy, with a low around 39.
Sunday
Partly sunny, with a high near 61.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Tennanah Lake NY
 41.88°N 74.95°W (Elev. 2280 ft)
Last Update:
7:08 pm EDT Apr 5, 2026
Forecast Valid:
11pm EDT Apr 5, 2026-6pm EDT Apr 12, 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