Current conditions at

John Glenn Columbus International Airport (KCMH)

Lat: 39.99°NLon: 82.88°WElev: 807ft.

Mostly Cloudy

42°F

6°C

Humidity 43%
Wind Speed N 8 mph
Barometer 30.36 in (1028.6 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 20 Apr 10:51 am EDT
Extended Forecast for

Gahanna OH

Frost Advisory April 20, 11:00pm until April 21, 10:00am
Click here for hazard details and duration
Frost Advisory
  • Today

    Today: Sunny, with a high near 52. North wind around 8 mph.

    High: 52 °F

    Sunny

  • Tonight

    Tonight: Patchy frost after 2am.  Otherwise, mostly clear, with a low around 35. Calm wind becoming southeast around 5 mph after midnight.

    Low: 35 °F

    Mostly Clear
    then Patchy
    Frost

  • Tuesday

    Tuesday: Areas of frost before 8am.  Otherwise, mostly sunny, with a high near 74. South wind 8 to 16 mph, with gusts as high as 26 mph.

    High: 74 °F

    Areas Frost
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am.  Mostly cloudy, with a low around 58. Southwest wind around 10 mph, with gusts as high as 24 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 58 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before 8am, then a chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm.  Partly sunny, with a high near 73. West wind around 8 mph.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 73 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Friday

    Friday: A chance of showers after 2pm.  Mostly sunny, with a high near 82. Chance of precipitation is 30%.

    High: 82 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 52. North wind around 8 mph.
Tonight
Patchy frost after 2am. Otherwise, mostly clear, with a low around 35. Calm wind becoming southeast around 5 mph after midnight.
Tuesday
Areas of frost before 8am. Otherwise, mostly sunny, with a high near 74. South wind 8 to 16 mph, with gusts as high as 26 mph.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 58. Southwest wind around 10 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers likely and possibly a thunderstorm before 8am, then a chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 73. West wind around 8 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Mostly clear, with a low around 54.
Thursday
Sunny, with a high near 80.
Thursday Night
Partly cloudy, with a low around 58.
Friday
A chance of showers after 2pm. Mostly sunny, with a high near 82. Chance of precipitation is 30%.
Friday Night
Showers likely, mainly after 8pm. Mostly cloudy, with a low around 58. Chance of precipitation is 70%.
Saturday
A chance of showers. Partly sunny, with a high near 74. Chance of precipitation is 50%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 51. Chance of precipitation is 30%.
Sunday
A chance of showers. Partly sunny, with a high near 72. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Gahanna OH
 40.04°N 82.87°W (Elev. 833 ft)
11:34 am EDT Apr 20, 2026
11am EDT Apr 20, 2026-6pm EDT Apr 26, 2026
 
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