National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Monticello, Sullivan County International Airport (KMSV)

Lat: 41.7°NLon: 74.8°WElev: 1404ft.

Mostly Cloudy

37°F

3°C

Humidity 57%
Wind Speed SE 5 mph
Barometer 29.73 in (1008.4 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 13 Jan 6:56 pm EST
Extended Forecast for

Tennanah Lake NY

  • Tonight

    Tonight: Mostly cloudy, with a low around 32. South wind 8 to 11 mph.

    Low: 32 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of rain and snow before 2pm, then a chance of rain between 2pm and 4pm, then a chance of rain and snow after 4pm. Mostly cloudy, with a high near 38. Southwest wind around 7 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 38 °F

    Slight Chance
    Rain then
    Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Snow, possibly mixed with rain, becoming all snow after 1am. Low around 13. Southwest wind 6 to 10 mph becoming northwest after midnight. Chance of precipitation is 90%. New snow accumulation of around 2 inches.

    Low: 13 °F

    Rain/Snow

  • Thursday

    Thursday: A chance of snow before 1pm. Partly sunny, with a high near 16. Wind chill values as low as -3. West wind 11 to 14 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    High: 16 °F

    Chance Snow

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 6. Northwest wind 10 to 14 mph.

    Low: 6 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 21.

    High: 21 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 16.

    Low: 16 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of snow after 1pm. Partly sunny, with a high near 31. Chance of precipitation is 30%.

    High: 31 °F

    Mostly Sunny
    then Chance
    Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 14.

    Low: 14 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 32. South wind 8 to 11 mph.
Wednesday
A chance of rain and snow before 2pm, then a chance of rain between 2pm and 4pm, then a chance of rain and snow after 4pm. Mostly cloudy, with a high near 38. Southwest wind around 7 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Wednesday Night
Snow, possibly mixed with rain, becoming all snow after 1am. Low around 13. Southwest wind 6 to 10 mph becoming northwest after midnight. Chance of precipitation is 90%. New snow accumulation of around 2 inches.
Thursday
A chance of snow before 1pm. Partly sunny, with a high near 16. Wind chill values as low as -3. West wind 11 to 14 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Thursday Night
Mostly cloudy, with a low around 6. Northwest wind 10 to 14 mph.
Friday
Mostly sunny, with a high near 21.
Friday Night
Mostly cloudy, with a low around 16.
Saturday
A chance of snow after 1pm. Partly sunny, with a high near 31. Chance of precipitation is 30%.
Saturday Night
Mostly cloudy, with a low around 14.
Sunday
Partly sunny, with a high near 21.
Sunday Night
Mostly cloudy, with a low around 9.
M.L.King Day
Partly sunny, with a high near 19.
Monday Night
Mostly cloudy, with a low around 7.
Tuesday
Partly sunny, with a high near 13.
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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:
3:23 pm EST Jan 13, 2026
Forecast Valid:
7pm EST Jan 13, 2026-6pm EST Jan 20, 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