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.

Partly Cloudy

55°F

13°C

Humidity 96%
Wind Speed W 6 mph
Barometer 30.12 in (1020.0 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Wind Chill54°F (12°C)
Last update 4 Apr 2:56 am EDT
Extended Forecast for

Tennanah Lake NY

  • Overnight

    Overnight: Mostly cloudy, with a low around 44. Northwest wind around 9 mph.

    Low: 44 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of showers before 4pm, then a slight chance of showers after 5pm. Partly sunny, with a high near 57. North wind 5 to 7 mph becoming light and variable. Chance of precipitation is 40%.

    High: 57 °F

    Partly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers after 1am. Mostly cloudy, with a low around 40. Southeast wind 14 to 16 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 40 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers, mainly before 2pm. High near 53. South wind 9 to 11 mph becoming west in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 53 °F

    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 29. Northwest wind around 16 mph.

    Low: 29 °F

    Mostly Cloudy

  • Monday

    Monday: A slight chance of showers after 2pm. Partly sunny, with a high near 41. Chance of precipitation is 20%.

    High: 41 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: A chance of snow showers before 8pm, then a chance of rain and snow showers between 8pm and 11pm, then a chance of snow showers after 11pm. Mostly cloudy, with a low around 28. Chance of precipitation is 50%.

    Low: 28 °F

    Chance
    Rain/Snow
    then Chance
    Snow Showers

  • Tuesday

    Tuesday: A chance of snow showers before 2pm. Partly sunny, with a high near 35. Chance of precipitation is 30%.

    High: 35 °F

    Chance Snow
    Showers

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 17.

    Low: 17 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 44. Northwest wind around 9 mph.
Saturday
A chance of showers before 4pm, then a slight chance of showers after 5pm. Partly sunny, with a high near 57. North wind 5 to 7 mph becoming light and variable. Chance of precipitation is 40%.
Saturday Night
A chance of showers after 1am. Mostly cloudy, with a low around 40. Southeast wind 14 to 16 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Showers, mainly before 2pm. High near 53. South wind 9 to 11 mph becoming west in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Mostly cloudy, with a low around 29. Northwest wind around 16 mph.
Monday
A slight chance of showers after 2pm. Partly sunny, with a high near 41. Chance of precipitation is 20%.
Monday Night
A chance of snow showers before 8pm, then a chance of rain and snow showers between 8pm and 11pm, then a chance of snow showers after 11pm. Mostly cloudy, with a low around 28. Chance of precipitation is 50%.
Tuesday
A chance of snow showers before 2pm. Partly sunny, with a high near 35. Chance of precipitation is 30%.
Tuesday Night
Mostly clear, with a low around 17.
Wednesday
Sunny, with a high near 45.
Wednesday Night
Mostly clear, with a low around 27.
Thursday
Sunny, with a high near 55.
Thursday Night
Partly cloudy, with a low around 35.
Friday
Mostly sunny, with a high near 59.
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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:
2:30 am EDT Apr 4, 2026
Forecast Valid:
3am EDT Apr 4, 2026-6pm EDT Apr 10, 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