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

London Madison County Airport (KUYF)

Lat: 39.93°NLon: 83.46°WElev: 1083ft.

Partly Cloudy

5°F

-15°C

Humidity 66%
Wind Speed W 7 mph
Barometer 30.34 in
Dewpoint -4°F (-20°C)
Visibility 10.00 mi
Wind Chill-7°F (-22°C)
Last update 20 Jan 4:35 am EST
Extended Forecast for

4 Miles S Irwin OH

Cold Weather Advisory January 20, 04:46am until January 20, 10:00am
Click here for hazard details and duration
...
  •  
    Cold Weather Advisory January 20, 04:46am until January 20, 10:00am

    NOW until 10:00am Tue

    Cold Weather Advisory

  • Today

    High: 19 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 14. South wind 6 to 10 mph, with gusts as high as 23 mph.

    Low: 14 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: A chance of snow.  Mostly cloudy, with a high near 37. Breezy, with a south wind 14 to 22 mph, with gusts as high as 33 mph.  Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    High: 37 °F

    Chance Snow
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 24. Southwest wind 10 to 16 mph.

    Low: 24 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 29. West wind 11 to 14 mph.

    High: 29 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 8.

    Low: 8 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 15.

    High: 15 °F

    Partly Sunny

  • Friday Night

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

    Low: 0 °F

    Mostly Cloudy

Detailed Forecast

Today
Sunny, with a high near 19. Wind chill values as low as -10. West wind 9 to 13 mph.
Tonight
Increasing clouds, with a low around 14. South wind 6 to 10 mph, with gusts as high as 23 mph.
Wednesday
A chance of snow. Mostly cloudy, with a high near 37. Breezy, with a south wind 14 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Wednesday Night
Mostly cloudy, with a low around 24. Southwest wind 10 to 16 mph.
Thursday
Mostly sunny, with a high near 29. West wind 11 to 14 mph.
Thursday Night
Mostly cloudy, with a low around 8.
Friday
Partly sunny, with a high near 15.
Friday Night
Mostly cloudy, with a low around 0.
Saturday
A chance of snow after 1pm. Mostly cloudy and cold, with a high near 10. Chance of precipitation is 30%.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 5. Chance of precipitation is 40%.
Sunday
A chance of snow. Partly sunny, with a high near 14. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 2.
Monday
Mostly sunny, with a high near 18.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Irwin OH
 40.07°N 83.45°W (Elev. 997 ft)
4:40 am EST Jan 20, 2026
4am EST Jan 20, 2026-6pm EST Jan 26, 2026
 
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Additional Resources

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