Gahanna, OH Weather & Growing Conditions
Today
82°F
Partly Sunny then Chance Showers And Thunderstorms
A slight chance of rain showers between 4pm and 5pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 82. Southeast wind around 6 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Partly Sunny then Chance Showers And Thunderstorms | 6 mph SE | 35% |
| Tonight | 67°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 6 mph S | 64% |
| Sunday | 82°F | Chance Showers And Thunderstorms | 5 to 10 mph W | 58% |
| Sunday Night | 58°F | Showers And Thunderstorms Likely | 13 mph NE | 65% |
| Monday | 70°F | Chance Rain Showers | 13 mph NE | 47% |
| Monday Night | 55°F | Chance Rain Showers | 13 mph NE | 39% |
| Tuesday | 70°F | Chance Rain Showers | 13 mph NE | 35% |
| Tuesday Night | 57°F | Showers And Thunderstorms Likely | 14 mph NE | 64% |
| Wednesday | 69°F | Rain Showers Likely | 12 to 15 mph E | 64% |
| Wednesday Night | 55°F | Showers And Thunderstorms Likely | 10 to 14 mph E | 64% |
| Thursday | 70°F | Slight Chance Rain Showers | 10 mph NE | 22% |
| Thursday Night | 54°F | Mostly Cloudy | 9 mph NE | 11% |
| Friday | 71°F | Mostly Sunny | 7 to 12 mph NE | 14% |
| Friday Night | 52°F | Partly Cloudy | 7 to 12 mph NE | 14% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Gahanna, OH
Last spring frost
Apr 18
First fall frost
Oct 27
Growing season
191 days
Hardiness zone
6b
Explore more for Gahanna, OH: full frost dates · planting calendar · Ohio frost dates
Climate data from the nearest NOAA station, Columbus Port Columbus Intl Ap, Oh (3.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.