Hazardous Weather Conditions
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 Chill | 37°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
Today

High: 52 °F
Sunny
Tonight

Low: 35 °F
Mostly Clear
then Patchy
FrostTuesday

High: 74 °F
Areas Frost
then Mostly
SunnyTuesday Night

Low: 58 °F
Showers
LikelyWednesday

High: 73 °F
Showers
LikelyWednesday Night

Low: 54 °F
Mostly Clear
Thursday

High: 80 °F
Sunny
Thursday Night

Low: 58 °F
Partly Cloudy
Friday
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)
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



