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

26°F

-3°C

Humidity 78%
Wind Speed N 10 mph
Barometer 29.61 in (1004.3 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill16°F (-9°C)
Last update 23 Feb 3:56 am EST
Extended Forecast for

Thompsonville NY

Blizzard Warning February 23, 04:48am until February 23, 01:00pm
Click here for hazard details and duration
Blizzard Warning
  •  
    Blizzard Warning February 23, 04:48am until February 23, 01:00pm

    NOW until 1:00pm Mon

    Blizzard Warning

  • Overnight

    Low: 24 °F

    Heavy Snow

  • Monday

    Monday: Snow, mainly before 1pm. The snow could be heavy at times. High near 32. North wind 16 to 18 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. New snow accumulation of around 2 inches.

    High: 32 °F

    Heavy Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 13. Northwest wind 10 to 15 mph, with gusts as high as 33 mph.

    Low: 13 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 23. Wind chill values as low as zero. Northwest wind 7 to 10 mph, with gusts as high as 23 mph.

    High: 23 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Snow likely after 1am. Mostly cloudy, with a low around 10. Light and variable wind. Chance of precipitation is 70%.

    Low: 10 °F

    Partly Cloudy
    then Snow
    Likely

  • Wednesday

    Wednesday: Snow likely before 1pm, then a chance of rain. Mostly cloudy, with a high near 38. Chance of precipitation is 70%.

    High: 38 °F

    Snow Likely
    then
    Rain/Snow
    Likely

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 18.

    Low: 18 °F

    Partly Cloudy

  • Thursday

    Thursday: A chance of snow after 1pm. Partly sunny, with a high near 35. Chance of precipitation is 50%.

    High: 35 °F

    Partly Sunny
    then Chance
    Snow

Detailed Forecast

Overnight
Snow. The snow could be heavy at times. Low around 24. North wind around 15 mph, with gusts as high as 34 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of around 5 inches.
Monday
Snow, mainly before 1pm. The snow could be heavy at times. High near 32. North wind 16 to 18 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. New snow accumulation of around 2 inches.
Monday Night
Mostly cloudy, with a low around 13. Northwest wind 10 to 15 mph, with gusts as high as 33 mph.
Tuesday
Mostly sunny, with a high near 23. Wind chill values as low as zero. Northwest wind 7 to 10 mph, with gusts as high as 23 mph.
Tuesday Night
Snow likely after 1am. Mostly cloudy, with a low around 10. Light and variable wind. Chance of precipitation is 70%.
Wednesday
Snow likely before 1pm, then a chance of rain. Mostly cloudy, with a high near 38. Chance of precipitation is 70%.
Wednesday Night
Partly cloudy, with a low around 18.
Thursday
A chance of snow after 1pm. Partly sunny, with a high near 35. Chance of precipitation is 50%.
Thursday Night
Snow and freezing rain likely before 1am, then a chance of rain, snow, and freezing rain. Mostly cloudy, with a low around 21. Chance of precipitation is 60%.
Friday
Mostly sunny, with a high near 37.
Friday Night
Mostly clear, with a low around 19.
Saturday
Sunny, with a high near 45.
Saturday Night
Partly cloudy, with a low around 24.
Sunday
Partly sunny, with a high near 40.
Basemap Options
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Thompsonville NY
 41.67°N 74.61°W (Elev. 1247 ft)
Last Update:
3:25 am EST Feb 23, 2026
Forecast Valid:
4am EST Feb 23, 2026-6pm EST Mar 1, 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