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 46%
Wind Speed SE 15 G 22 mph
Barometer 30.37 in (1030.2 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 15 Mar 11:56 am EDT
Extended Forecast for

Tennanah Lake NY

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 39. Southeast wind 11 to 15 mph, with gusts as high as 28 mph.

    High: 39 °F

    Partly Sunny

  • Tonight

    Tonight: Showers, mainly after 2am. Low around 33. Breezy, with a southeast wind 17 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 33 °F

    Breezy.
    Slight Chance
    Showers then
    Showers

  • Monday

    Monday: Showers, with thunderstorms also possible after 2pm. Some of the storms could be severe. High near 57. Southeast wind 14 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 57 °F

    Showers
    Likely then
    Severe
    Thunderstorms

  • Monday Night

    Monday Night: Rain showers before 1am, then rain and snow showers between 1am and 2am, then a chance of snow showers after 2am. Some thunder is also possible. Low around 22. South wind 16 to 18 mph becoming west in the evening. Winds could gust as high as 32 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    Low: 22 °F

    Severe
    Thunderstorms
    then
    Rain/Snow

  • Tuesday

    Tuesday: A chance of snow showers before 8am. Partly sunny, with a high near 23. West wind 15 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 30%.

    High: 23 °F

    Chance Snow
    Showers then
    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 13.

    Low: 13 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 31.

    High: 31 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 22.

    Low: 22 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 39.

    High: 39 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 39. Southeast wind 11 to 15 mph, with gusts as high as 28 mph.
Tonight
Showers, mainly after 2am. Low around 33. Breezy, with a southeast wind 17 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Showers, with thunderstorms also possible after 2pm. Some of the storms could be severe. High near 57. Southeast wind 14 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Monday Night
Rain showers before 1am, then rain and snow showers between 1am and 2am, then a chance of snow showers after 2am. Some thunder is also possible. Low around 22. South wind 16 to 18 mph becoming west in the evening. Winds could gust as high as 32 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Tuesday
A chance of snow showers before 8am. Partly sunny, with a high near 23. West wind 15 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 13.
Wednesday
Mostly sunny, with a high near 31.
Wednesday Night
Mostly cloudy, with a low around 22.
Thursday
Partly sunny, with a high near 39.
Thursday Night
Mostly cloudy, with a low around 28.
Friday
Partly sunny, with a high near 44.
Friday Night
Rain and snow showers likely. Mostly cloudy, with a low around 29. Chance of precipitation is 60%.
Saturday
Rain and snow showers likely. Partly sunny, with a high near 38. Chance of precipitation is 60%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Tennanah Lake NY
 41.88°N 74.95°W (Elev. 2280 ft)
Last Update:
11:27 am EDT Mar 15, 2026
Forecast Valid:
12pm EDT Mar 15, 2026-6pm EDT Mar 21, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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