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Gahanna weather
Loading live data…The weather map: all three models at once
NWS, American, European side by side around Gahanna and nearby towns.Live rain radar →Loading the three model maps…
Next 14 hours
consensus of the three models7-day forecast
where the models agree, and where they splitGahanna, OH is at its warmest in Jul (average highs near 84°F) and coldest in Jan (lows around 28°F), with roughly 44 in of precipitation across the year. Below, compare what NWS, American, European forecast for Gahanna right now, and see exactly where they disagree.
Gahanna climate by month
average daytime high and overnight low across a typical yearJan
40°
28°
Feb
49°
30°
Mar
52°
34°
Apr
64°
44°
May
73°
54°
Jun
80°
61°
Jul
84°
66°
Aug
82°
64°
Sep
78°
60°
Oct
66°
49°
Nov
53°
38°
Dec
44°
32°
Which forecast is most accurate in the US?
CheckWeather Score — graded against the weather that actually happened
The CheckWeather Score blends temperature, wind and rain accuracy — each measured against ERA5 (the recorded weather) over the last 30 days across 40 cities. Lower error means a higher score. The apps you know (AccuWeather, Apple Weather, The Weather Channel) are built on these models.
Common questions
What's the weather in Gahanna today?
On this page we show what NWS, American, European each forecast for Gahanna today, side by side and updated live. When all three agree the forecast is reliable; when they split, we flag it so you know the day is genuinely less certain.
Will it rain in Gahanna today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Gahanna and flag the days where the models disagree on whether showers actually arrive, which is exactly when a single app can catch you out.
Which forecast is most accurate for Gahanna?
No single model is always right. NWS, American, European each run their own physics, so we line all three up: when they agree the Gahanna forecast is reliable, and when they split you should expect surprises. See our tested US accuracy scoreboard for how the models compare.
What is the warmest month in Gahanna?
Jul is typically the warmest month in Gahanna, with average highs around 84°F.
How cold does Gahanna get?
The coldest month in Gahanna is Jan, when overnight lows average about 28°F.
How much rain does Gahanna get?
Gahanna sees roughly 44 in of precipitation a year, with Apr usually the wettest month.
The forecasts Americans check
The two biggest apps keep their model a secret, so we can't show their numbers, only link you to them. The National Weather Service is public, so its data sits right in the comparison above.