Costa Mesa Resident Portal Safety and Security

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

Tonight
Patchy drizzle and patchy fog. Cloudy, with a low around 53. Southwest wind 0 to 5 mph.

Thursday
Patchy drizzle and patchy fog before 11am. Partly sunny, with a high near 66. South wind 5 to 10 mph.

Thursday Night
Mostly cloudy, with a low around 53. Southwest wind 5 to 10 mph.

Friday
Partly sunny, with a high near 64. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.

Friday Night
Partly cloudy, with a low around 51. West wind 5 to 10 mph, with gusts as high as 20 mph. New rainfall amounts less than a tenth of an inch possible.

Saturday
Mostly sunny, with a high near 64.

Saturday Night
Partly cloudy, with a low around 50.

Sunday
Mostly sunny, with a high near 66.

Sunday Night
Partly cloudy, with a low around 51.

Monday
Sunny, with a high near 68.

Monday Night
Patchy fog after 5am. Mostly clear, with a low around 52.

Tuesday
Patchy fog before 11am. Sunny, with a high near 71.

Tuesday Night
Patchy fog after 11pm. Partly cloudy, with a low around 55.

Wednesday
Patchy fog before 11am. Mostly sunny, with a high near 72.

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