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Tennanah Lake, New York Weather Forecast
Tennanah Lake, New York Weather
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Weather Forecast for Tennanah Lake, New York : Sullivan County
Issued: 3:22 pm EST Dec 21, 2025 Latitude: 41.8950882 Longitude: -74.9765532 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Monday Tuesday Wednesday Christmas Day Friday Saturday
Flurries on This Afternoon Flurries on Tonight Mostly Sunny on Monday 90% chance of snow on Tuesday Partly Sunny on Wednesday 30% chance of snow on Christmas Day 70% chance of rain & snow on Friday 40% chance of rain & snow on Saturday
High: 24°F Low: 17°F High: 30°F High: 35°F High: 33°F High: 36°F High: 43°F High: 35°F
Low: 24°F Low: 28°F Low: 22°F Low: 31°F Low: 27°F  
Flurries Flurries Mostly Sunny Snow Partly Sunny Snow Rain & Snow Rain & Snow
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Current Conditions at
MONTICELLO - (KMSV)
27°
Feels like 13°F
Mostly Cloudy
as of 2:56 PM EST
Rel. Humidity: 49%
Dew Point: 10°F
Visibility: 10 Miles
Pressure: 30.13 in.
Flight Rule: VFR
Wind Data
18 MPH
Gust: 24 MPH
310° Northwest
Cloud Level(s): Broken at 4500ft
Current Conditions at
MONTGOMERY - (KMGJ)
34°
Feels like 23°F
Partly Cloudy
as of 2:54 PM EST
Rel. Humidity: 40%
Dew Point: 12°F
Visibility: 10 Miles
Pressure: 30.14 in.
Flight Rule: VFR
Wind Data
17 MPH
Gust: 29 MPH
320° Northwest
Cloud Level(s): Scattered at 4900ft
Current Conditions at
SUSSEX - (KFWN)
37°
Feels like 28°F
Mostly Clear
as of 2:53 PM EST
Rel. Humidity: 32%
Dew Point: 10°F
Visibility: 10 Miles
Pressure: 30.16 in.
Flight Rule: VFR
Wind Data
14 MPH
Gust: 29 MPH
300° Northwest
Cloud Level(s): Few at 6000ft
Current Conditions at
SCRANTON - (KAVP)
32°
Feels like 20°F
Mostly Clear
as of 2:54 PM EST
Rel. Humidity: 43%
Dew Point: 12°F
Visibility: 10 Miles
Pressure: 30.18 in.
Flight Rule: VFR
Wind Data
18 MPH
Gust: 28 MPH
330° Northwest
Cloud Level(s): Few at 6000ft
Flurries on This Afternoon This Afternoon... Scattered flurries. Partly sunny, with a steady temperature around 24. Northwest wind around 11 mph, with gusts as high as 24 mph.
Flurries on Tonight Tonight... Scattered flurries before 1am. Increasing clouds, with a low around 17. Northwest wind 10 to 13 mph.
Mostly Sunny on Monday Monday... Mostly sunny, with a high near 30. Northwest wind 6 to 8 mph.
70% chance of snow Monday Night Monday Night... Snow showers likely after 1am. Mostly cloudy, with a low around 24. West wind around 5 mph becoming south after midnight. Chance of precipitation is 70%. New snow accumulation of around 2 inches.
90% chance of snow Tuesday Tuesday... Snow showers, mainly before 1pm. High near 35. South wind around 6 mph. Chance of precipitation is 90%.
30% chance of snow Tuesday Night Tuesday Night... A chance of snow showers, mainly before 1am. Cloudy, with a low around 28. Chance of precipitation is 30%.
Partly Sunny on Wednesday Wednesday... Partly sunny, with a high near 33.
Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 22.
30% chance of snow Christmas Day Christmas Day... A chance of snow showers before 1pm. Mostly cloudy, with a high near 36. Chance of precipitation is 30%.
40% chance of rain Thursday Night Thursday Night... A chance of showers. Cloudy, with a low around 31. Chance of precipitation is 40%.
70% chance of rain & snow Friday Friday... Rain and snow showers likely. Cloudy, with a high near 43. Chance of precipitation is 70%.
50% chance of rain & snow Friday Night Friday Night... A chance of rain and snow showers. Mostly cloudy, with a low around 27. Chance of precipitation is 50%.
40% chance of rain & snow Saturday Saturday... A chance of rain and snow showers. Mostly cloudy, with a high near 35. Chance of precipitation is 40%.
Current Radar Image


Sun Almanac for Tennanah Lake, New York
Sunrise: 07:24 AM
Sunset: 4:32 PM
Civil Sunrise:06:53 AM
Civil Sunset: 5:04 PM
Nautical Sunrise: 06:18 AM
Nautical Sunset: 5:39 PM
Astro Sunrise: 05:44 AM
Astro Sunset: 6:13 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.