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.

Light Rain Fog/Mist

40°F

4°C

Humidity 97%
Wind Speed Calm
Barometer 30.02 in (1016.9 mb)
Dewpoint 39°F (4°C)
Visibility 6.00 mi
Last update 18 Nov 10:51 pm EST
Extended Forecast for

Johnstown OH

  • Tonight

    Tonight: A slight chance of showers before 2am. Areas of fog. Otherwise, cloudy, with a low around 36. Northeast wind around 7 mph. Chance of precipitation is 20%.

    Low: 36 °F

    Slight Chance
    Showers and
    Areas Fog

  • Wednesday

    Wednesday: Partly sunny, with a high near 50. Northeast wind around 7 mph.

    High: 50 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 37. Northeast wind around 5 mph becoming calm in the evening.

    Low: 37 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 52. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 52 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A chance of rain. Cloudy, with a low around 46. South wind around 6 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 46 °F

    Chance Rain

  • Friday

    Friday: A chance of rain. Mostly cloudy, with a high near 57. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 57 °F

    Chance Rain

  • Friday Night

    Friday Night: Rain likely, mainly before 1am. Mostly cloudy, with a low around 39. Chance of precipitation is 60%.

    Low: 39 °F

    Rain Likely

  • Saturday

    Saturday: A chance of rain before 1pm. Partly sunny, with a high near 51. Chance of precipitation is 30%.

    High: 51 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear

Detailed Forecast

Tonight
A slight chance of showers before 2am. Areas of fog. Otherwise, cloudy, with a low around 36. Northeast wind around 7 mph. Chance of precipitation is 20%.
Wednesday
Partly sunny, with a high near 50. Northeast wind around 7 mph.
Wednesday Night
Mostly cloudy, with a low around 37. Northeast wind around 5 mph becoming calm in the evening.
Thursday
Mostly cloudy, with a high near 52. Calm wind becoming southwest around 6 mph in the afternoon.
Thursday Night
A chance of rain. Cloudy, with a low around 46. South wind around 6 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Friday
A chance of rain. Mostly cloudy, with a high near 57. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Rain likely, mainly before 1am. Mostly cloudy, with a low around 39. Chance of precipitation is 60%.
Saturday
A chance of rain before 1pm. Partly sunny, with a high near 51. Chance of precipitation is 30%.
Saturday Night
Mostly clear, with a low around 32.
Sunday
Sunny, with a high near 54.
Sunday Night
Partly cloudy, with a low around 36.
Monday
Mostly sunny, with a high near 55.
Monday Night
Mostly cloudy, with a low around 37.
Tuesday
A chance of rain. Partly sunny, with a high near 52. Chance of precipitation is 30%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Johnstown OH
 40.16°N 82.69°W (Elev. 1112 ft)
Last Update:
9:13 pm EST Nov 18, 2025
Forecast Valid:
11pm EST Nov 18, 2025-6pm EST Nov 25, 2025
 
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