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As of 11:23 PDT

Weather in Costa Mesa, CA

83°Current weather

Costa Mesa, Sunday, 9 August, 11:23

Mostly clear. Feels like 88°. High 91°, low 72°.

Pressure29.88 inHg
Wind5 mph SW
Humidity66%
Visibility5.7 mi
Dew point71°

Two-week outlook for Costa Mesa, CA: week one averages a high of 79.8° and week two 80.5°, so both weeks look similar in temperature. Around 0.0 inches of precipitation are expected over the 14 days, across 0 wet days. The nearest weekend, August 9: 91°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (August 9 – August 15)79.8°69.4°0.0 in / 0 d+1°
2nd (August 16 – August 22)80.5°73.4°0.0 in / 0 d+2.1°

Weekend weather

Sun, August 9
Clear
91°72°
no precip.
Sat, August 15
Overcast
74°70°
no precip.
Sun, August 16
Overcast
76°71°
no precip.
Sat, August 22
Overcast
80°74°
no precip.
Mon, 1093° / 69°0Overcast
93 °Overcast

Costa Mesa, Monday, 10 August

Overcast. High 93°, low 69°.

Pressure29.91 inHg
Wind7.6 mph SW
Humidity65%
Visibility5.8 mi
Dew point64°
Tue, 1178° / 69°0Overcast
78 °Overcast

Costa Mesa, Tuesday, 11 August

Overcast. High 78°, low 69°.

Pressure29.97 inHg
Wind8.1 mph SW
Humidity55%
Visibility6.2 mi
Dew point60°
Wed, 1276° / 70°0Mostly clear
76 °Mostly clear

Costa Mesa, Wednesday, 12 August

Mostly clear. High 76°, low 70°.

Pressure29.88 inHg
Wind8.7 mph SW
Humidity61%
Visibility5.8 mi
Dew point62°
Thu, 1372° / 68°0Partly cloudy
72 °Partly cloudy

Costa Mesa, Thursday, 13 August

Partly cloudy. High 72°, low 68°.

Pressure29.91 inHg
Wind9.6 mph SW
Humidity72%
Visibility—
Dew point62°
Fri, 1473° / 67°0Overcast
73 °Overcast

Costa Mesa, Friday, 14 August

Overcast. High 73°, low 67°.

Pressure29.97 inHg
Wind10.1 mph SW
Humidity66%
Visibility—
Dew point60°
Sat, 1574° / 70°0Overcast
74 °Overcast

Costa Mesa, Saturday, 15 August

Overcast. High 74°, low 70°.

Pressure30.00 inHg
Wind10.1 mph SW
Humidity62%
Visibility—
Dew point60°
Sun, 1676° / 71°0Overcast
76 °Overcast

Costa Mesa, Sunday, 16 August

Overcast. High 76°, low 71°.

Pressure30.06 inHg
Wind12.6 mph W
Humidity62%
Visibility—
Dew point61°
Mon, 1780° / 72°0Mostly clear
80 °Mostly clear

Costa Mesa, Monday, 17 August

Mostly clear. High 80°, low 72°.

Pressure30.03 inHg
Wind12.8 mph W
Humidity59%
Visibility—
Dew point62°
Tue, 1881° / 72°0Partly cloudy
81 °Partly cloudy

Costa Mesa, Tuesday, 18 August

Partly cloudy. High 81°, low 72°.

Pressure29.94 inHg
Wind11.3 mph W
Humidity59%
Visibility—
Dew point62°
Wed, 1983° / 75°0Light rain
83 °Light rain

Costa Mesa, Wednesday, 19 August

Light rain. High 83°, low 75°.

Pressure29.88 inHg
Wind8.8 mph SW
Humidity58%
Visibility—
Dew point64°
Thu, 2082° / 75°0.01Light rain
82 °Light rain

Costa Mesa, Thursday, 20 August

Light rain. High 82°, low 75°.

Pressure29.91 inHg
Wind6.7 mph SE
Humidity67%
Visibility—
Dew point66°
Fri, 2182° / 75°0Clear
82 °Clear

Costa Mesa, Friday, 21 August

Clear. High 82°, low 75°.

Pressure29.85 inHg
Wind8.7 mph SW
Humidity58%
Visibility—
Dew point64°
Sat, 2280° / 74°0Overcast
80 °Overcast

Costa Mesa, Saturday, 22 August

Overcast. High 80°, low 74°.

Pressure29.88 inHg
Wind9.1 mph SW
Humidity63%
Visibility—
Dew point65°

About this forecast

Can I plan a trip on a 2-week forecast?

Week one is solid for planning — accuracy is high. Week two shows the trend: go by the averages and the comparison with normal, and check the details closer to the date.

What does the "Vs normal" column mean?

It is the gap between the forecast and the climate normal for those same dates in Costa Mesa, CA, computed over 60 years. A positive value means the week runs warmer than usual.

Why are weekends shown separately?

Saturday and Sunday plans are what people check most, so we give them their own cards with temperature and precipitation.