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.

Fair

41°F

5°C

Humidity 70%
Wind Speed N 3 mph
Barometer 30.01 in (1016.6 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 10 Mar 12:56 am EDT
Extended Forecast for

Tennanah Lake NY

  • Overnight

    Overnight: Clear, with a low around 41. West wind around 6 mph.

    Low: 41 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 65. Southwest wind 3 to 8 mph.

    High: 65 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of rain before 10pm, then a slight chance of rain after 4am. Partly cloudy, with a low around 49. Southwest wind around 6 mph becoming southeast after midnight. Chance of precipitation is 20%.

    Low: 49 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Wednesday

    Wednesday: A chance of rain, then rain likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 65. South wind 7 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 65 °F

    Chance Rain
    then Rain
    Likely

  • Wednesday Night

    Wednesday Night: Rain. Low around 33. South wind around 14 mph. Chance of precipitation is 90%.

    Low: 33 °F

    Rain

  • Thursday

    Thursday: A chance of snow showers before 2pm. Mostly cloudy, with a high near 35. Chance of precipitation is 40%.

    High: 35 °F

    Chance Snow
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 22.

    Low: 22 °F

    Partly Cloudy

  • Friday

    Friday: A chance of snow after 2pm. Partly sunny, with a high near 37. Chance of precipitation is 30%.

    High: 37 °F

    Partly Sunny
    then Chance
    Snow

  • Friday Night

    Friday Night: A chance of snow before 2am. Mostly cloudy, with a low around 27. Chance of precipitation is 40%.

    Low: 27 °F

    Chance Snow

Detailed Forecast

Overnight
Clear, with a low around 41. West wind around 6 mph.
Tuesday
Sunny, with a high near 65. Southwest wind 3 to 8 mph.
Tuesday Night
A slight chance of rain before 10pm, then a slight chance of rain after 4am. Partly cloudy, with a low around 49. Southwest wind around 6 mph becoming southeast after midnight. Chance of precipitation is 20%.
Wednesday
A chance of rain, then rain likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 65. South wind 7 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Rain. Low around 33. South wind around 14 mph. Chance of precipitation is 90%.
Thursday
A chance of snow showers before 2pm. Mostly cloudy, with a high near 35. Chance of precipitation is 40%.
Thursday Night
Partly cloudy, with a low around 22.
Friday
A chance of snow after 2pm. Partly sunny, with a high near 37. Chance of precipitation is 30%.
Friday Night
A chance of snow before 2am. Mostly cloudy, with a low around 27. Chance of precipitation is 40%.
Saturday
Mostly sunny, with a high near 36.
Saturday Night
Mostly cloudy, with a low around 25.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 44. Chance of precipitation is 40%.
Sunday Night
Rain. Low around 34. Chance of precipitation is 80%.
Monday
Rain and snow. High near 45. Chance of precipitation is 80%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Tennanah Lake NY
 41.88°N 74.95°W (Elev. 2280 ft)
Last Update:
1:10 am EDT Mar 10, 2026
Forecast Valid:
1am EDT Mar 10, 2026-6pm EDT Mar 16, 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