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

28°F

-2°C

Humidity 78%
Wind Speed Calm
Barometer 30.44 in (1031.7 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Last update 24 Mar 6:51 am EDT
Extended Forecast for

4 Miles SSW Johnstown OH

  • Today

    Today: Sunny, with a high near 49. Light and variable wind becoming southeast around 6 mph in the morning.

    High: 49 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 35. Calm wind becoming southeast around 6 mph after midnight.

    Low: 35 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 61. Southeast wind 5 to 10 mph becoming south in the afternoon.

    High: 61 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers after 2am. Mostly cloudy, with a low around 51. South wind 8 to 10 mph. Chance of precipitation is 20%.

    Low: 51 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 5pm. Partly sunny, with a high near 72. South wind 11 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 72 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Low around 38. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

    Low: 38 °F

    Showers

  • Friday

    Friday: A chance of showers before 2pm. Mostly cloudy, with a high near 44. Chance of precipitation is 30%.

    High: 44 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 24.

    Low: 24 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 47.

    High: 47 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 49. Light and variable wind becoming southeast around 6 mph in the morning.
Tonight
Mostly cloudy, with a low around 35. Calm wind becoming southeast around 6 mph after midnight.
Wednesday
Partly sunny, with a high near 61. Southeast wind 5 to 10 mph becoming south in the afternoon.
Wednesday Night
A slight chance of showers after 2am. Mostly cloudy, with a low around 51. South wind 8 to 10 mph. Chance of precipitation is 20%.
Thursday
A chance of showers, with thunderstorms also possible after 5pm. Partly sunny, with a high near 72. South wind 11 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers and possibly a thunderstorm. Low around 38. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Friday
A chance of showers before 2pm. Mostly cloudy, with a high near 44. Chance of precipitation is 30%.
Friday Night
Mostly clear, with a low around 24.
Saturday
Sunny, with a high near 47.
Saturday Night
Mostly clear, with a low around 30.
Sunday
Mostly sunny, with a high near 56.
Sunday Night
Mostly cloudy, with a low around 42.
Monday
Partly sunny, with a high near 63.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Johnstown OH
 40.09°N 82.7°W (Elev. 1198 ft)
Last Update:
4:00 am EDT Mar 24, 2026
Forecast Valid:
7am EDT Mar 24, 2026-6pm EDT Mar 30, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation