Costa Mesa Resident Portal Data and Information

Welcome to the non-official Costa Mesa Resident Portal.

View public safety alerts, emergency alerts, weather warnings and resources.  Find government and nonprofit resources, and related private sector services. See detailed weather forecasts. Ask questions, provide feedback and collaborate. Get news and information.

Browse by category or Search for public safety alerts, resources and information like “public safety alerts, evac warning, missing person, change address, start and run a business, find benefits, do business with government and more."

View Public Safety Alerts and Weather Warnings at: https://govonestop.com/active-alerts

Detailed Forecast

Overnight
Partly cloudy, with a low around 51. Southwest wind 0 to 5 mph.

Wednesday
Sunny, with a high near 73. South wind 0 to 10 mph.

Wednesday Night
Patchy fog after 11pm. Partly cloudy, with a low around 53. Southwest wind 0 to 5 mph.

Thursday
Patchy fog before 11am. Sunny, with a high near 75. Southwest wind 0 to 10 mph.

Thursday Night
Patchy fog after 11pm. Partly cloudy, with a low around 54. South wind 0 to 5 mph.

Friday
Patchy fog before 11am. Mostly sunny, with a high near 75.

Friday Night
Mostly cloudy, with a low around 53.

Saturday
Mostly sunny, with a high near 70.

Saturday Night
Partly cloudy, with a low around 52.

Sunday
Mostly sunny, with a high near 68.

Sunday Night
Patchy fog between 11pm and 5am. Partly cloudy, with a low around 50.

Monday
Mostly sunny, with a high near 69.

Monday Night
Partly cloudy, with a low around 51.

Tuesday
Mostly sunny, with a high near 67.

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