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Hazardous Weather Conditions

Current conditions at

Monticello, Sullivan County International Airport (KMSV)

Lat: 41.7°NLon: 74.8°WElev: 1404ft.

Fair

17°F

-8°C

Humidity 64%
Wind Speed SW 3 mph
Barometer 30.01 in (1018.1 mb)
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Last update 23 Jan 3:56 am EST
Extended Forecast for

Tennanah Lake NY

Winter Storm Watch January 25, 01:00am until January 26, 07:00pm
Cold Weather Advisory January 23, 07:00pm until January 24, 10:00am
Click here for hazard details and duration
Winter Storm Watch
Cold Weather Advisory

  • Today

    Today: Mostly sunny, with a high near 20. Wind chill values as low as -6. West wind 10 to 15 mph, with gusts as high as 26 mph.

    High: 20 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around -3. Wind chill values as low as -20. Northwest wind 14 to 16 mph.

    Low: -3 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny and cold, with a high near 6. Wind chill values as low as -20. Northwest wind 7 to 10 mph.

    High: 6 °F

    Cold

  • Saturday Night

    Saturday Night: A chance of snow after 1am. Mostly cloudy, with a low around 1. Wind chill values as low as -9. North wind 5 to 7 mph becoming northeast after midnight. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 1 °F

    Mostly Cloudy
    then Chance
    Snow

  • Sunday

    Sunday: Snow. The snow could be heavy at times. High near 13. East wind 6 to 8 mph. Chance of precipitation is 100%.

    High: 13 °F

    Heavy Snow

  • Sunday Night

    Sunday Night: Snow. The snow could be heavy at times. Low around 9. Chance of precipitation is 100%.

    Low: 9 °F

    Heavy Snow

  • Monday

    Monday: Snow before 1pm, then a chance of snow showers after 1pm. High near 17. Chance of precipitation is 80%.

    High: 17 °F

    Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 0.

    Low: 0 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 12.

    High: 12 °F

    Partly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 20. Wind chill values as low as -6. West wind 10 to 15 mph, with gusts as high as 26 mph.
Tonight
Partly cloudy, with a low around -3. Wind chill values as low as -20. Northwest wind 14 to 16 mph.
Saturday
Mostly sunny and cold, with a high near 6. Wind chill values as low as -20. Northwest wind 7 to 10 mph.
Saturday Night
A chance of snow after 1am. Mostly cloudy, with a low around 1. Wind chill values as low as -9. North wind 5 to 7 mph becoming northeast after midnight. Chance of precipitation is 30%. Little or no snow accumulation expected.
Sunday
Snow. The snow could be heavy at times. High near 13. East wind 6 to 8 mph. Chance of precipitation is 100%.
Sunday Night
Snow. The snow could be heavy at times. Low around 9. Chance of precipitation is 100%.
Monday
Snow before 1pm, then a chance of snow showers after 1pm. High near 17. Chance of precipitation is 80%.
Monday Night
Mostly cloudy, with a low around 0.
Tuesday
Partly sunny, with a high near 12.
Tuesday Night
Mostly cloudy, with a low around -2.
Wednesday
Mostly sunny, with a high near 14.
Wednesday Night
Mostly cloudy, with a low around -1.
Thursday
Mostly cloudy, with a high near 11.
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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:
1:45 am EST Jan 23, 2026
Forecast Valid:
4am EST Jan 23, 2026-6pm EST Jan 29, 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