Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Current conditions at

Chillicothe Ross County Airport (KRZT)

Lat: 39.44°NLon: 83.02°WElev: 725ft.

10°F

-12°C

Humidity 61%
Wind Speed W 3 mph
Barometer 30.41 in
Dewpoint 0°F (-18°C)
Visibility 10.00 mi
Last update 20 Jan 4:35 am EST
Extended Forecast for

McDermott OH

Cold Weather Advisory January 20, 05:03am until January 20, 10:00am
Click here for hazard details and duration
...
  •  
    Cold Weather Advisory January 20, 05:03am until January 20, 10:00am

    NOW until 10:00am Tue

    Cold Weather Advisory

  • Today

    High: 25 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 17. South wind 3 to 5 mph.

    Low: 17 °F

    Mostly Clear

  • Wednesday

    Wednesday: A chance of rain after 1pm.  Mostly cloudy, with a high near 43. Southwest wind 6 to 14 mph, with gusts as high as 26 mph.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 43 °F

    Partly Sunny
    then Chance
    Rain

  • Wednesday Night

    Wednesday Night: A slight chance of rain, mixing with snow after 10pm, then gradually ending.  Mostly cloudy, with a low around 31. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 20%.

    Low: 31 °F

    Slight Chance
    Rain/Snow

  • Thursday

    Thursday: Partly sunny, with a high near 40. West wind around 7 mph.

    High: 40 °F

    Partly Sunny

  • Thursday Night

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

    Low: 18 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 26.

    High: 26 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 6.

    Low: 6 °F

    Mostly Cloudy

Detailed Forecast

Today
Sunny, with a high near 25. Wind chill values as low as -1. West wind 6 to 8 mph.
Tonight
Mostly clear, with a low around 17. South wind 3 to 5 mph.
Wednesday
A chance of rain after 1pm. Mostly cloudy, with a high near 43. Southwest wind 6 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A slight chance of rain, mixing with snow after 10pm, then gradually ending. Mostly cloudy, with a low around 31. Southwest wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Thursday
Partly sunny, with a high near 40. West wind around 7 mph.
Thursday Night
Partly cloudy, with a low around 18.
Friday
Mostly cloudy, with a high near 26.
Friday Night
Mostly cloudy, with a low around 6.
Saturday
A chance of snow. Mostly cloudy, with a high near 17. Chance of precipitation is 50%.
Saturday Night
Snow likely. Mostly cloudy, with a low around 10. Chance of precipitation is 60%.
Sunday
A chance of snow. Mostly cloudy, with a high near 20. Chance of precipitation is 40%.
Sunday Night
Partly cloudy, with a low around 6.
Monday
Mostly sunny, with a high near 24.
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ABOUT THIS FORECAST

 
Point Forecast:
McDermott OH
 38.83°N 83.07°W (Elev. 712 ft)
4:40 am EST Jan 20, 2026
5am EST Jan 20, 2026-6pm EST Jan 26, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database