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

55°F

13°C

Humidity 77%
Wind Speed W 7 mph
Barometer 30.15 in (1021.2 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Wind Chill53°F (12°C)
Last update 1 Apr 3:56 pm EDT
Extended Forecast for

Tennanah Lake NY

  • This Afternoon

    This Afternoon: A chance of showers. Mostly cloudy, with a steady temperature around 51. North wind around 7 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 51 °F

    Chance
    Showers

  • Tonight

    Tonight: Showers. Low around 38. North wind around 8 mph becoming east after midnight. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 38 °F

    Showers

  • Thursday

    Thursday: A chance of showers, mainly between noon and 3pm. Mostly cloudy, with a high near 39. East wind around 10 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 39 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers, mainly between 8pm and 2am. Cloudy, with a low around 36. Southeast wind 11 to 13 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Chance
    Showers

  • Friday

    Friday: Mostly cloudy, with a high near 65. Southwest wind around 10 mph, with gusts as high as 20 mph.

    High: 65 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A slight chance of showers before 2am. Mostly cloudy, with a low around 52. Chance of precipitation is 20%.

    Low: 52 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: A chance of showers after 2pm. Partly sunny, with a high near 68. Chance of precipitation is 50%.

    High: 68 °F

    Partly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 50. Chance of precipitation is 60%.

    Low: 50 °F

    Showers
    Likely

  • Sunday

    Sunday: Showers. High near 58. Chance of precipitation is 80%.

    High: 58 °F

    Showers

Detailed Forecast

This Afternoon
A chance of showers. Mostly cloudy, with a steady temperature around 51. North wind around 7 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Showers. Low around 38. North wind around 8 mph becoming east after midnight. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Thursday
A chance of showers, mainly between noon and 3pm. Mostly cloudy, with a high near 39. East wind around 10 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
A chance of showers, mainly between 8pm and 2am. Cloudy, with a low around 36. Southeast wind 11 to 13 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Mostly cloudy, with a high near 65. Southwest wind around 10 mph, with gusts as high as 20 mph.
Friday Night
A slight chance of showers before 2am. Mostly cloudy, with a low around 52. Chance of precipitation is 20%.
Saturday
A chance of showers after 2pm. Partly sunny, with a high near 68. Chance of precipitation is 50%.
Saturday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 50. Chance of precipitation is 60%.
Sunday
Showers. High near 58. Chance of precipitation is 80%.
Sunday Night
Showers likely before 8pm. Mostly cloudy, with a low around 30. Chance of precipitation is 60%.
Monday
Partly sunny, with a high near 40.
Monday Night
Mostly clear, with a low around 26.
Tuesday
Partly sunny, with a high near 38.
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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:
3:23 pm EDT Apr 1, 2026
Forecast Valid:
4pm EDT Apr 1, 2026-6pm EDT Apr 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