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

28°F

-2°C

Humidity 60%
Wind Speed NW 10 mph
Barometer 30.06 in (1019.0 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 1 Mar 4:56 am EST
Extended Forecast for

Tennanah Lake NY

  • Overnight

    Overnight: A slight chance of snow. Cloudy, with a low around 20. North wind around 10 mph. Chance of precipitation is 20%.

    Low: 20 °F

    Slight Chance
    Snow

  • Sunday

    Sunday: A chance of snow, mainly before 8am. Cloudy through mid morning, then gradual clearing, with a high near 26. North wind around 10 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    High: 26 °F

    Chance Snow
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 3. Wind chill values as low as -6. North wind 6 to 10 mph.

    Low: 3 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 25. Wind chill values as low as -6. North wind around 5 mph becoming light and variable.

    High: 25 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 14. South wind 6 to 8 mph.

    Low: 14 °F

    Mostly Clear

  • Tuesday

    Tuesday: A chance of snow before 1pm, then snow and sleet between 1pm and 4pm, then sleet after 4pm. High near 33. Chance of precipitation is 80%.

    High: 33 °F

    Chance Snow
    then
    Snow/Sleet

  • Tuesday Night

    Tuesday Night: Rain. Low around 31. Chance of precipitation is 90%.

    Low: 31 °F

    Rain

  • Wednesday

    Wednesday: A chance of rain after 1pm. Partly sunny, with a high near 42. Chance of precipitation is 30%.

    High: 42 °F

    Mostly Cloudy
    then Chance
    Rain

  • Wednesday Night

    Wednesday Night: A chance of rain. Mostly cloudy, with a low around 35. Chance of precipitation is 50%.

    Low: 35 °F

    Chance Rain

Detailed Forecast

Overnight
A slight chance of snow. Cloudy, with a low around 20. North wind around 10 mph. Chance of precipitation is 20%.
Sunday
A chance of snow, mainly before 8am. Cloudy through mid morning, then gradual clearing, with a high near 26. North wind around 10 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Sunday Night
Mostly clear, with a low around 3. Wind chill values as low as -6. North wind 6 to 10 mph.
Monday
Sunny, with a high near 25. Wind chill values as low as -6. North wind around 5 mph becoming light and variable.
Monday Night
Mostly clear, with a low around 14. South wind 6 to 8 mph.
Tuesday
A chance of snow before 1pm, then snow and sleet between 1pm and 4pm, then sleet after 4pm. High near 33. Chance of precipitation is 80%.
Tuesday Night
Rain. Low around 31. Chance of precipitation is 90%.
Wednesday
A chance of rain after 1pm. Partly sunny, with a high near 42. Chance of precipitation is 30%.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 35. Chance of precipitation is 50%.
Thursday
Rain likely, mainly before 1pm. Mostly cloudy, with a high near 50. Chance of precipitation is 60%.
Thursday Night
Rain likely. Mostly cloudy, with a low around 38. Chance of precipitation is 70%.
Friday
A chance of rain. Mostly cloudy, with a high near 44. Chance of precipitation is 50%.
Friday Night
A chance of rain. Mostly cloudy, with a low around 38. Chance of precipitation is 40%.
Saturday
A chance of rain. Mostly cloudy, with a high near 54. Chance of precipitation is 40%.
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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:
4:57 am EST Mar 1, 2026
Forecast Valid:
5am EST Mar 1, 2026-6pm EST Mar 7, 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