🇺🇸 Weather in Costa Mesa
Current Weather in Costa Mesa
Beach Hazards Statement issued May 17 at 12:11PM PDT until May 18 at 9:00AM PDT by NWS San Diego CA
18°C
Feels like 18°C. Partly cloudy.
Map Overlays:
Hourly Forecast for Costa Mesa
23:00
15°
0%
00:00
15°
0%
01:00
15°
0%
02:00
16°
0%
03:00
16°
0%
04:00
15°
0%
05:00
14°
0%
06:00
14°
0%
07:00
16°
0%
08:00
18°
0%
09:00
19°
0%
10:00
19°
0%
11:00
20°
0%
12:00
20°
0%
13:00
20°
0%
14:00
20°
0%
15:00
20°
0%
16:00
19°
0%
17:00
19°
0%
18:00
18°
0%
19:00
18°
0%
20:00
18°
0%
21:00
17°
0%
22:00
17°
0%
14-Day Forecast for Costa Mesa
Sun, May 17
Overcast
20° /
14°
Mon, May 18
Sunny
20° /
13°
Tue, May 19
Sunny
21° /
16°
Wed, May 20
Sunny
21° /
17°
Thu, May 21
Sunny
21° /
17°
Fri, May 22
Sunny
20° /
16°
Sat, May 23
Sunny
20° /
15°
Sun, May 24
Sunny
21° /
16°
Mon, May 25
Sunny
20° /
16°
Tue, May 26
Partly Cloudy
18° /
16°
Wed, May 27
Patchy rain nearby
18° /
16°
Thu, May 28
Sunny
20° /
15°
Fri, May 29
Sunny
20° /
16°
Sat, May 30
Sunny
19° /
15°
Additional Forecasts for Costa Mesa
Air Quality
💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 121.8 μg/m³
O₃ (Ozone) 80.0 μg/m³
NO₂ (Nitrogen Dioxide) 5.0 μg/m³
SO₂ (Sulphur Dioxide) 1.8 μg/m³
PM2.5 (Fine particles) 14.1 μg/m³
PM10 (Coarse particles) 21.8 μg/m³
