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.

Overcast

35°F

2°C

Humidity 93%
Wind Speed NW 6 mph
Barometer 30.04 in (1018.7 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 8 Jan 3:56 am EST
Extended Forecast for

Tennanah Lake NY

  • Today

    Today: Cloudy, then gradually becoming mostly sunny, with a high near 37. Northwest wind 5 to 8 mph becoming calm in the afternoon.

    High: 37 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Mostly cloudy, with a low around 28. South wind 3 to 8 mph.

    Low: 28 °F

    Mostly Cloudy

  • Friday

    Friday: A slight chance of rain or freezing rain before 10am, then rain showers. High near 42. South wind around 10 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. Little or no ice accumulation expected.

    High: 42 °F

    Slight Chance
    Rain/Freezing
    Rain then
    Showers

  • Friday Night

    Friday Night: A chance of showers, mainly before 1am. Cloudy, with a low around 34. South wind 7 to 10 mph becoming northwest after midnight. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 34 °F

    Chance
    Showers

  • Saturday

    Saturday: Rain, mainly after 1pm. High near 39. North wind around 7 mph becoming southeast in the afternoon. Chance of precipitation is 80%.

    High: 39 °F

    Chance Rain
    then Rain

  • Saturday Night

    Saturday Night: Rain before 1am, then a chance of showers after 1am. Low around 32. Chance of precipitation is 80%.

    Low: 32 °F

    Rain

  • Sunday

    Sunday: Partly sunny, with a high near 36.

    High: 36 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 20.

    Low: 20 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 29.

    High: 29 °F

    Mostly Sunny

Detailed Forecast

Today
Cloudy, then gradually becoming mostly sunny, with a high near 37. Northwest wind 5 to 8 mph becoming calm in the afternoon.
Tonight
Mostly cloudy, with a low around 28. South wind 3 to 8 mph.
Friday
A slight chance of rain or freezing rain before 10am, then rain showers. High near 42. South wind around 10 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. Little or no ice accumulation expected.
Friday Night
A chance of showers, mainly before 1am. Cloudy, with a low around 34. South wind 7 to 10 mph becoming northwest after midnight. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Rain, mainly after 1pm. High near 39. North wind around 7 mph becoming southeast in the afternoon. Chance of precipitation is 80%.
Saturday Night
Rain before 1am, then a chance of showers after 1am. Low around 32. Chance of precipitation is 80%.
Sunday
Partly sunny, with a high near 36.
Sunday Night
Mostly cloudy, with a low around 20.
Monday
Mostly sunny, with a high near 29.
Monday Night
Partly cloudy, with a low around 22.
Tuesday
Mostly sunny, with a high near 34.
Tuesday Night
Mostly cloudy, with a low around 26.
Wednesday
Mostly cloudy, with a high near 36.
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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:
3:32 am EST Jan 8, 2026
Forecast Valid:
4am EST Jan 8, 2026-6pm EST Jan 14, 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