NWS, American, European side by side around Garden Grove and nearby towns.Live rain radar →
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Next 14 hours
consensus of the three models
7-day forecast
where the models agree, and where they split
Garden Grove, CA is at its warmest in Aug (average highs near 83°F) and coldest in Jan (lows around 47°F), with roughly 23 in of precipitation across the year. Below, compare what NWS, American, European forecast for Garden Grove right now, and see exactly where they disagree.
Garden Grove climate by month
average daytime high and overnight low across a typical year
Jan
62°
47°
Feb
63°
47°
Mar
63°
49°
Apr
69°
52°
May
70°
56°
Jun
75°
59°
Jul
82°
62°
Aug
83°
64°
Sep
81°
63°
Oct
80°
59°
Nov
73°
53°
Dec
68°
51°
Common questions
What's the weather in Garden Grove today?
On this page we show what NWS, American, European each forecast for Garden Grove 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 Garden Grove today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Garden Grove 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 Garden Grove?
No single model is always right. NWS, American, European each run their own physics, so we line all three up: when they agree the Garden Grove 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 Garden Grove?
Aug is typically the warmest month in Garden Grove, with average highs around 83°F.
How cold does Garden Grove get?
The coldest month in Garden Grove is Jan, when overnight lows average about 47°F.
How much rain does Garden Grove get?
Garden Grove sees roughly 23 in of precipitation a year, with Feb 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.