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.

Light Snow

11°F

-12°C

Humidity 88%
Wind Speed W 3 mph
Barometer 29.70 in (1008.4 mb)
Dewpoint 8°F (-13°C)
Visibility 9.00 mi
Last update 2 Jan 2:56 am EST
Extended Forecast for

Tennanah Lake NY

  • Overnight

    Overnight: A slight chance of snow showers. Mostly cloudy, with a low around 3. Wind chill values as low as -7. West wind around 9 mph. Chance of precipitation is 20%.

    Low: 3 °F

    Slight Chance
    Snow Showers

  • Friday

    Friday: A slight chance of snow showers before 8am. Mostly cloudy, with a high near 18. Wind chill values as low as -6. West wind 8 to 10 mph. Chance of precipitation is 20%.

    High: 18 °F

    Slight Chance
    Snow Showers
    then Partly
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 9. Wind chill values as low as -3. West wind around 10 mph.

    Low: 9 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 21. Wind chill values as low as -3. West wind 6 to 9 mph.

    High: 21 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of snow showers after 1am. Mostly cloudy, with a low around 13. West wind 3 to 5 mph. Chance of precipitation is 30%.

    Low: 13 °F

    Mostly Cloudy
    then Chance
    Snow Showers

  • Sunday

    Sunday: Mostly cloudy, with a high near 24.

    High: 24 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 6.

    Low: 6 °F

    Mostly Cloudy

  • Monday

    Monday: A chance of snow showers after 1pm. Mostly cloudy, with a high near 21. Chance of precipitation is 30%.

    High: 21 °F

    Partly Sunny
    then Chance
    Snow Showers

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 17.

    Low: 17 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A slight chance of snow showers. Mostly cloudy, with a low around 3. Wind chill values as low as -7. West wind around 9 mph. Chance of precipitation is 20%.
Friday
A slight chance of snow showers before 8am. Mostly cloudy, with a high near 18. Wind chill values as low as -6. West wind 8 to 10 mph. Chance of precipitation is 20%.
Friday Night
Partly cloudy, with a low around 9. Wind chill values as low as -3. West wind around 10 mph.
Saturday
Partly sunny, with a high near 21. Wind chill values as low as -3. West wind 6 to 9 mph.
Saturday Night
A chance of snow showers after 1am. Mostly cloudy, with a low around 13. West wind 3 to 5 mph. Chance of precipitation is 30%.
Sunday
Mostly cloudy, with a high near 24.
Sunday Night
Mostly cloudy, with a low around 6.
Monday
A chance of snow showers after 1pm. Mostly cloudy, with a high near 21. Chance of precipitation is 30%.
Monday Night
Mostly cloudy, with a low around 17.
Tuesday
Mostly cloudy, with a high near 34.
Tuesday Night
A chance of freezing rain. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.
Wednesday
A chance of showers. Mostly cloudy, with a high near 38. Chance of precipitation is 30%.
Wednesday Night
Mostly cloudy, with a low around 27.
Thursday
Partly sunny, with a high near 37.
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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:
12:37 am EST Jan 2, 2026
Forecast Valid:
3am EST Jan 2, 2026-6pm EST Jan 8, 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