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Costa Mesa, CA
Partly Cloudy, 2:10 PM
69- Precipitation: 0%
- Humidity: 58%
- Wind: 14 mph
Air quality is satisfactory, and air pollution poses little or no risk.(Air quality powered by Breezometer)
Extra protection is needed.
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All in one place, every weekday morning. Weather.com brings you the most accurate monthly weather forecast for Costa Mesa, CA with average/record and high/low temperatures, precipitation...
Get the monthly weather forecast for Costa Mesa, CA, including daily high/low, historical averages, to help you plan ahead.
The hottest month of the year in Costa Mesa is August, with an average high of 78°F and low of 66°F. The cool season lasts for 4.2 months, from November 29 to April 4, with an average daily high temperature below 68°F. The coldest month of the year in Costa Mesa is December, with an average low of 48°F and high of 66°F.
Costa Mesa, California - Climate and weather forecast by month. Detailed climate information with charts - average monthly weather with temperature, pressure, humidity, precipitation, wind, daylight, sunshine, visibility, and UV index data.
4 hours ago · Lat: 33.6798°N Lon: 117.8674°W Elev: 39.0ft. Overcast. 63°F. 17°C. More Information: Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast. Extended Forecast for. Costa Mesa CA. Today. High: 67 °F. Gradual. Clearing. Tonight. Low: 57 °F. Increasing. Clouds. Thursday. High: 67 °F. Gradual. Clearing. Thursday Night. Low: 58 °F.
Lat: 33.6798°N Lon: 117.8674°W Elev: 39.0ft. Overcast. 59°F. 15°C. More Information: Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast. Extended Forecast for. Costa Mesa CA. Today. High: 67 °F. Decreasing. Clouds. Tonight. Low: 56 °F. Mostly Cloudy. Wednesday. High: 67 °F. Gradual. Clearing. Wednesday Night. Low: 56 °F.
