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

27°F

-3°C

Humidity 75%
Wind Speed W 13 G 20 mph
Barometer 29.37 in (995.8 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill16°F (-9°C)
Last update 15 Jan 12:56 pm EST
Extended Forecast for

Tennanah Lake NY

  • This Afternoon

    This Afternoon: A slight chance of snow showers before 3pm. Mostly cloudy, with a high near 30. West wind 11 to 13 mph. Chance of precipitation is 20%.

    High: 30 °F

    Slight Chance
    Snow Showers

  • Tonight

    Tonight: A slight chance of snow showers between 10pm and midnight. Mostly cloudy, with a low around 10. Wind chill values as low as -8. Northwest wind 14 to 17 mph. Chance of precipitation is 20%.

    Low: 10 °F

    Slight Chance
    Snow Showers
    then Mostly
    Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 23. Wind chill values as low as -6. Northwest wind 7 to 15 mph becoming southwest in the afternoon.

    High: 23 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of snow showers after 1am. Mostly cloudy, with a low around 19. South wind around 8 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    Low: 19 °F

    Mostly Cloudy
    then Chance
    Snow Showers

  • Saturday

    Saturday: A chance of snow showers. Mostly cloudy, with a high near 30. South wind around 7 mph. Chance of precipitation is 50%.

    High: 30 °F

    Chance Snow
    Showers

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 19.

    Low: 19 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 23.

    High: 23 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 11.

    Low: 11 °F

    Mostly Cloudy

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 21.

    High: 21 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A slight chance of snow showers before 3pm. Mostly cloudy, with a high near 30. West wind 11 to 13 mph. Chance of precipitation is 20%.
Tonight
A slight chance of snow showers between 10pm and midnight. Mostly cloudy, with a low around 10. Wind chill values as low as -8. Northwest wind 14 to 17 mph. Chance of precipitation is 20%.
Friday
Mostly sunny, with a high near 23. Wind chill values as low as -6. Northwest wind 7 to 15 mph becoming southwest in the afternoon.
Friday Night
A chance of snow showers after 1am. Mostly cloudy, with a low around 19. South wind around 8 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Saturday
A chance of snow showers. Mostly cloudy, with a high near 30. South wind around 7 mph. Chance of precipitation is 50%.
Saturday Night
Mostly cloudy, with a low around 19.
Sunday
Partly sunny, with a high near 23.
Sunday Night
Mostly cloudy, with a low around 11.
M.L.King Day
Mostly sunny, with a high near 21.
Monday Night
Partly cloudy, with a low around 3.
Tuesday
Partly sunny and cold, with a high near 9.
Tuesday Night
Partly cloudy, with a low around 1.
Wednesday
Partly sunny, with a high near 17.
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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:
12:13 pm EST Jan 15, 2026
Forecast Valid:
1pm EST Jan 15, 2026-6pm EST Jan 21, 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