National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

John Glenn Columbus International Airport (KCMH)

Lat: 39.99°NLon: 82.88°WElev: 807ft.

Mostly Cloudy

18°F

-8°C

Humidity 74%
Wind Speed Calm
Barometer 30.16 in (1022.8 mb)
Dewpoint 11°F (-12°C)
Visibility 10.00 mi
Last update 15 Dec 10:51 pm EST
Extended Forecast for

Gahanna OH

  • Tonight

    Tonight: Mostly clear, with a low around 13. Light south wind.

    Low: 13 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 34. Light south wind increasing to 5 to 10 mph in the morning.

    High: 34 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 29. South wind 9 to 11 mph, with gusts as high as 21 mph.

    Low: 29 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 41. Southwest wind 7 to 10 mph, with gusts as high as 20 mph.

    High: 41 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 30. South wind 5 to 9 mph.

    Low: 30 °F

    Mostly Cloudy

  • Thursday

    Thursday: Rain, mainly after 1pm. High near 50. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 50 °F

    Chance Rain
    then Rain

  • Thursday Night

    Thursday Night: Rain likely before 1am. Mostly cloudy, with a low around 23. Chance of precipitation is 70%.

    Low: 23 °F

    Rain Likely

  • Friday

    Friday: Partly sunny, with a high near 30.

    High: 30 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 23.

    Low: 23 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 13. Light south wind.
Tuesday
Sunny, with a high near 34. Light south wind increasing to 5 to 10 mph in the morning.
Tuesday Night
Mostly cloudy, with a low around 29. South wind 9 to 11 mph, with gusts as high as 21 mph.
Wednesday
Mostly cloudy, with a high near 41. Southwest wind 7 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly cloudy, with a low around 30. South wind 5 to 9 mph.
Thursday
Rain, mainly after 1pm. High near 50. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Rain likely before 1am. Mostly cloudy, with a low around 23. Chance of precipitation is 70%.
Friday
Partly sunny, with a high near 30.
Friday Night
Mostly cloudy, with a low around 23.
Saturday
Partly sunny, with a high near 45.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 33. Chance of precipitation is 30%.
Sunday
Partly sunny, with a high near 43.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 29. Chance of precipitation is 30%.
Monday
Mostly cloudy, with a high near 45.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Gahanna OH
 40.01°N 82.88°W (Elev. 797 ft)
Last Update:
6:12 pm EST Dec 15, 2025
Forecast Valid:
11pm EST Dec 15, 2025-6pm EST Dec 22, 2025
 
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