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

67°F

19°C

Humidity 63%
Wind Speed SW 8 mph
Barometer 29.95 in (1014.0 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 31 Mar 1:56 pm EDT
Extended Forecast for

Tennanah Lake NY

  • This Afternoon

    This Afternoon: A chance of rain and thunderstorms after 5pm. Partly sunny, with a high near 64. Southwest wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 64 °F

    Chance
    T-storms

  • Tonight

    Tonight: Rain and thunderstorms likely, then rain after 4am. Low around 55. Southwest wind 10 to 14 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 55 °F

    Rain

  • Wednesday

    Wednesday: Rain likely before noon, then a chance of rain after 3pm. Mostly cloudy, with a high near 59. Northwest wind 7 to 10 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 59 °F

    Rain Likely
    then Chance
    Rain

  • Wednesday Night

    Wednesday Night: Rain likely, mainly after 8pm. Mostly cloudy, with a low around 41. North wind 6 to 8 mph becoming east after midnight. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 41 °F

    Rain Likely

  • Thursday

    Thursday: A chance of rain. Mostly cloudy, with a high near 46. Southeast wind around 9 mph. Chance of precipitation is 40%.

    High: 46 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A chance of rain before 2am. Mostly cloudy, with a low around 40. Chance of precipitation is 30%.

    Low: 40 °F

    Chance Rain

  • Friday

    Friday: A chance of rain after 2pm. Mostly cloudy, with a high near 64. Chance of precipitation is 30%.

    High: 64 °F

    Mostly Cloudy
    then Chance
    Rain

  • Friday Night

    Friday Night: A chance of rain before 2am. Mostly cloudy, with a low around 51. Chance of precipitation is 40%.

    Low: 51 °F

    Chance Rain

  • Saturday

    Saturday: A chance of rain after 2pm. Partly sunny, with a high near 70. Chance of precipitation is 40%.

    High: 70 °F

    Partly Sunny
    then Chance
    Rain

Detailed Forecast

This Afternoon
A chance of rain and thunderstorms after 5pm. Partly sunny, with a high near 64. Southwest wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Rain and thunderstorms likely, then rain after 4am. Low around 55. Southwest wind 10 to 14 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Rain likely before noon, then a chance of rain after 3pm. Mostly cloudy, with a high near 59. Northwest wind 7 to 10 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain likely, mainly after 8pm. Mostly cloudy, with a low around 41. North wind 6 to 8 mph becoming east after midnight. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
A chance of rain. Mostly cloudy, with a high near 46. Southeast wind around 9 mph. Chance of precipitation is 40%.
Thursday Night
A chance of rain before 2am. Mostly cloudy, with a low around 40. Chance of precipitation is 30%.
Friday
A chance of rain after 2pm. Mostly cloudy, with a high near 64. Chance of precipitation is 30%.
Friday Night
A chance of rain before 2am. Mostly cloudy, with a low around 51. Chance of precipitation is 40%.
Saturday
A chance of rain after 2pm. Partly sunny, with a high near 70. Chance of precipitation is 40%.
Saturday Night
Rain likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 51. Chance of precipitation is 60%.
Sunday
Rain likely. Mostly cloudy, with a high near 63. Chance of precipitation is 60%.
Sunday Night
Rain likely. Mostly cloudy, with a low around 35. Chance of precipitation is 60%.
Monday
A chance of rain. Mostly cloudy, with a high near 42. Chance of precipitation is 30%.
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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:
12:26 pm EDT Mar 31, 2026
Forecast Valid:
2pm EDT Mar 31, 2026-6pm EDT Apr 6, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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