NWS, American, European side by side around Tustin 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
Tustin, CA is at its warmest in Jul (average highs near 84°F) and coldest in Feb (lows around 46°F), with roughly 23 in of precipitation across the year. Below, compare what NWS, American, European forecast for Tustin right now, and see exactly where they disagree.
Tustin climate by month
average daytime high and overnight low across a typical year
Jan
63°
47°
Feb
63°
46°
Mar
63°
48°
Apr
70°
51°
May
71°
55°
Jun
76°
58°
Jul
84°
61°
Aug
84°
62°
Sep
82°
62°
Oct
81°
58°
Nov
74°
52°
Dec
68°
50°
Common questions
What's the weather in Tustin today?
On this page we show what NWS, American, European each forecast for Tustin 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 Tustin today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Tustin 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 Tustin?
No single model is always right. NWS, American, European each run their own physics, so we line all three up: when they agree the Tustin 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 Tustin?
Jul is typically the warmest month in Tustin, with average highs around 84°F.
How cold does Tustin get?
The coldest month in Tustin is Feb, when overnight lows average about 46°F.
How much rain does Tustin get?
Tustin 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.