NWS, American, European side by side around Mission Viejo 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
Mission Viejo, CA is at its warmest in Jul (average highs near 83°F) and coldest in Feb (lows around 45°F), with roughly 27 in of precipitation across the year. Below, compare what NWS, American, European forecast for Mission Viejo right now, and see exactly where they disagree.
Mission Viejo climate by month
average daytime high and overnight low across a typical year
Jan
62°
46°
Feb
61°
45°
Mar
61°
47°
Apr
67°
50°
May
68°
53°
Jun
74°
58°
Jul
83°
62°
Aug
83°
64°
Sep
81°
62°
Oct
80°
58°
Nov
73°
51°
Dec
68°
49°
Common questions
What's the weather in Mission Viejo today?
On this page we show what NWS, American, European each forecast for Mission Viejo 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 Mission Viejo today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Mission Viejo 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 Mission Viejo?
No single model is always right. NWS, American, European each run their own physics, so we line all three up: when they agree the Mission Viejo 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 Mission Viejo?
Jul is typically the warmest month in Mission Viejo, with average highs around 83°F.
How cold does Mission Viejo get?
The coldest month in Mission Viejo is Feb, when overnight lows average about 45°F.
How much rain does Mission Viejo get?
Mission Viejo sees roughly 27 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.