Hourly Weather Forecast - Costa Mesa, CA

12 AM
59°F
50%
9mph
SE
50% Chance of Light Rain
Humidity
91%
Feels like
59°F
Dew Point
56°F
1 AM
59°F
60%
9mph
SE
60% Chance of Light Rain
Humidity
92%
Feels like
59°F
Dew Point
57°F
2 AM
59°F
60%
9mph
SE
60% Chance of Light Rain
Humidity
94%
Feels like
59°F
Dew Point
58°F
3 AM
59°F
60%
9mph
SE
60% Chance of Light Rain
Humidity
97%
Feels like
59°F
Dew Point
58°F
4 AM
59°F
70%
9mph
SE
70% Chance of Light Rain
Humidity
99%
Feels like
59°F
Dew Point
59°F
5 AM
59°F
70%
10mph
SE
70% Chance of Light Rain
Humidity
100%
Feels like
59°F
Dew Point
59°F

Forecast Peak Wind Gusts Today

High Winds, Rain, and Snow Cross the Country

A clipper moving over the Great Lakes brings rain, snow, and high winds through the Atlantic Coastline.

Rainfall and Snowfall Totals Through Friday

Atmospheric River Symptoms Repeat in the Northwest

Thursday's Weather Outlook

Today's Weather Outlook

Flu Update Valid For Week Ending December 6, 2025

Weekly Flu Update: Flu Exceeds Annual Baseline

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

How to Measure Snow via NWS

How To Measure Snow

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