10-Day Weather Forecast for Costa Mesa (CA)

Six-hourly outlook through Monday 27 July. Updated every three hours via MET Norway.

Day
Night
23:00
Morning
05:00
Afternoon
11:00
Evening
17:00
Friday
17 Jul
Clear skies
24°C (75°F)
0 mm (0 in)
Hourly ›
Saturday
18 Jul
Clear skies
21°C (70°F)
0 mm (0 in)
Clear skies
19°C (66°F)
0 mm (0 in)
Clear skies
27°C (81°F)
0 mm (0 in)
Clear skies
26°C (79°F)
0 mm (0 in)
Hourly ›
Sunday
19 Jul
Partly cloudy
22°C (72°F)
0 mm (0 in)
Mostly sunny
20°C (68°F)
0 mm (0 in)
Clear skies
27°C (81°F)
0 mm (0 in)
Clear skies
26°C (79°F)
0 mm (0 in)
Hourly ›
Monday
20 Jul
Partly cloudy
21°C (70°F)
0 mm (0 in)
Mostly sunny
20°C (68°F)
0 mm (0 in)
Clear skies
27°C (81°F)
0 mm (0 in)
Clear skies
25°C (77°F)
0 mm (0 in)
Hourly ›
Tuesday
21 Jul
Clear skies
21°C (70°F)
0 mm (0 in)
Clear skies
19°C (66°F)
0 mm (0 in)
Clear skies
26°C (79°F)
0 mm (0 in)
Mostly clear
27°C (81°F)
0 mm (0 in)
Hourly ›
Wednesday
22 Jul
Partly cloudy
22°C (72°F)
0 mm (0 in)
Mostly sunny
19°C (66°F)
0 mm (0 in)
Clear skies
28°C (82°F)
0 mm (0 in)
Partly cloudy
28°C (82°F)
0 mm (0 in)
Hourly ›
Thursday
23 Jul
Clear skies
23°C (73°F)
0.2 mm (0.01 in)
Light rain showers
21°C (70°F)
0.6 mm (0.02 in)
Partly cloudy
26°C (79°F)
0 mm (0 in)
Clear skies
27°C (81°F)
0 mm (0 in)
Hourly ›
Friday
24 Jul
Clear skies
23°C (73°F)
0 mm (0 in)
Clear skies
20°C (68°F)
0 mm (0 in)
Clear skies
26°C (79°F)
0 mm (0 in)
Clear skies
26°C (79°F)
0 mm (0 in)
Hourly ›
Saturday
25 Jul
Mostly clear
21°C (70°F)
0 mm (0 in)
Partly cloudy
19°C (66°F)
0 mm (0 in)
Clear skies
26°C (79°F)
0 mm (0 in)
Clear skies
27°C (81°F)
0 mm (0 in)
Hourly ›
Sunday
26 Jul
Clear skies
22°C (72°F)
0 mm (0 in)
Cloudy
19°C (66°F)
0 mm (0 in)
Clear skies
28°C (82°F)
0 mm (0 in)
Clear skies
29°C (84°F)
0 mm (0 in)
Hourly ›
Data from MET Norway · Updated every three hours.

What's the weather in Costa Mesa this week?

Today's weather - Friday 17 Jul

This evening, the weather in Costa Mesa will be clear skies, with temperatures around 24°C (75°F), dropping to 21°C (70°F) overnight.

Tomorrow's weather - Saturday 18 Jul

On Saturday, Costa Mesa will be clear skies. The maximum predicted temperature is a warm 27°C (81°F), while the minimum temperature is a pleasant 19°C (66°F).

10-Day Weather Forecast

In the coming 10 days, the weather in Costa Mesa will vary between 24°C (75°F) and 28°C (82°F). Daytime highs during this period will average around 27°C (81°F), with nighttime lows around 20°C (68°F). Compared to July norms, this represents typical weather. The next 10 days will feature plenty of sunshine. Precipitation levels will be a bit more than usual (versus normal July rainfall), with mostly dry conditions. Wind patterns will be generally calm.

Weather Forecast FAQ for Costa Mesa

When will be the warmest day next week?

The warmest day is expected to be Wednesday with a high of 28°C (82°F).

When will be the coldest day?

The coldest day is forecasted for Tuesday with a low of 19°C (66°F).

Will it rain next week in Costa Mesa?

No significant rainfall is currently expected during the next 10 days.

How much rainfall is expected next week?

A total of 1 mm (0.04 in) of rain is forecasted for the 10-day period.

What will be the temperature range next week?

Temperatures will range from 19°C (66°F) to 28°C (82°F).

More about Costa Mesa

Explore the full Costa Mesa climate overview with monthly averages, or check rainfall data and temperature by month.

Costa Mesa weather by month

Browse monthly averages for Costa Mesa: climate by month with temperature, rainfall and sunshine.

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