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

Hazardous Weather Conditions

Current conditions at

John Glenn Columbus International Airport (KCMH)

Lat: 39.99°NLon: 82.88°WElev: 807ft.

Fair

70°F

21°C

Humidity 66%
Wind Speed S 5 mph
Barometer 29.95 in (1013.5 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 13 Oct 11:51 pm EDT
Extended Forecast for

Johnstown OH

  • Tonight

    Tonight: Mostly clear, with a low around 65. Southwest wind around 7 mph.

    Low: 65 °F

    Mostly Clear

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Increasing clouds, with a high near 79. Southwest wind around 7 mph becoming northwest in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 79 °F

    Chance
    Showers then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 3am, then a slight chance of showers between 3am and 4am. Low around 55. Northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 55 °F

    Showers then
    Slight Chance
    Showers

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 69. Northeast wind 6 to 9 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 69 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8pm. Low around 59. South wind 7 to 15 mph becoming southwest after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 59 °F

    Showers

  • Friday

    Friday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 62. Breezy. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 62 °F

    Showers
    Likely and
    Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 37. Breezy.

    Low: 37 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Saturday

    Saturday: Sunny, with a high near 53.

    High: 53 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 33.

    Low: 33 °F

    Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 65. Southwest wind around 7 mph.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Increasing clouds, with a high near 79. Southwest wind around 7 mph becoming northwest in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and possibly a thunderstorm before 3am, then a slight chance of showers between 3am and 4am. Low around 55. Northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 69. Northeast wind 6 to 9 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8pm. Low around 59. South wind 7 to 15 mph becoming southwest after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 62. Breezy. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
Partly cloudy, with a low around 37. Breezy.
Saturday
Sunny, with a high near 53.
Saturday Night
Clear, with a low around 33.
Sunday
Sunny, with a high near 61.
Sunday Night
Mostly clear, with a low around 41.
Monday
Mostly sunny, with a high near 65.
Monday Night
Mostly cloudy, with a low around 45.
Tuesday
Mostly sunny, with a high near 68.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Johnstown OH
 40.13°N 82.69°W (Elev. 1096 ft)
Last Update:
4:00 pm EDT Oct 13, 2026
Forecast Valid:
11pm EDT Oct 13, 2026-6pm EDT Oct 20, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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