Hourly Weather Forecast - Costa Mesa, CA

12 AM
56°F
0%
2mph
SE
Mostly Cloudy
Humidity
95%
Feels like
56°F
Dew Point
55°F
1 AM
56°F
10%
3mph
SE
Mostly Cloudy
Humidity
96%
Feels like
56°F
Dew Point
55°F
2 AM
56°F
10%
3mph
SE
Mostly Cloudy
Humidity
96%
Feels like
56°F
Dew Point
55°F
3 AM
55°F
10%
3mph
ESE
Mostly Cloudy
Humidity
97%
Feels like
55°F
Dew Point
55°F
4 AM
55°F
10%
3mph
ESE
Mostly Cloudy
Humidity
98%
Feels like
55°F
Dew Point
55°F
5 AM
55°F
10%
3mph
ESE
Foggy
Humidity
99%
Feels like
55°F
Dew Point
55°F
6 AM
56°F
10%
3mph
ESE
Mostly Cloudy
Humidity
97%
Feels like
56°F
Dew Point
55°F
6:53 AM
7 AM
57°F
10%
4mph
SE
Mostly Cloudy
Humidity
93%
Feels like
57°F
Dew Point
55°F
8 AM
59°F
10%
4mph
SE
Mostly Cloudy
Humidity
89%
Feels like
59°F
Dew Point
56°F
9 AM
61°F
10%
4mph
SE
Partly Cloudy
Humidity
85%
Feels like
61°F
Dew Point
56°F
10 AM
62°F
10%
5mph
SSE
Partly Cloudy
Humidity
79%
Feels like
62°F
Dew Point
56°F
11 AM
64°F
30%
6mph
SSE
30% Chance Rain Showers
Humidity
75%
Feels like
64°F
Dew Point
55°F
12 PM
65°F
30%
8mph
SSE
30% Chance Rain Showers
Humidity
71%
Feels like
65°F
Dew Point
55°F
1 PM
65°F
30%
9mph
SSE
30% Chance of Light Rain
Humidity
68%
Feels like
65°F
Dew Point
54°F
2 PM
64°F
40%
9mph
SSE
40% Chance of Light Rain
Humidity
70%
Feels like
64°F
Dew Point
54°F
3 PM
63°F
40%
8mph
SSE
40% Chance of Light Rain
Humidity
73%
Feels like
63°F
Dew Point
55°F
4 PM
62°F
50%
8mph
SSE
50% Chance of Light Rain
Humidity
79%
Feels like
62°F
Dew Point
55°F
4:48 PM
5 PM
61°F
50%
8mph
SSE
50% Chance of Light Rain
Humidity
85%
Feels like
61°F
Dew Point
56°F
6 PM
61°F
50%
7mph
SE
50% Chance of Light Rain
Humidity
85%
Feels like
61°F
Dew Point
56°F
7 PM
60°F
50%
7mph
SE
50% Chance of Light Rain
Humidity
85%
Feels like
60°F
Dew Point
56°F
8 PM
60°F
50%
7mph
SE
50% Chance of Light Rain
Humidity
83%
Feels like
60°F
Dew Point
55°F
9 PM
60°F
50%
8mph
SE
50% Chance of Light Rain
Humidity
84%
Feels like
60°F
Dew Point
55°F
10 PM
60°F
50%
8mph
SE
50% Chance of Light Rain
Humidity
85%
Feels like
60°F
Dew Point
55°F
11 PM
60°F
50%
9mph
SE
50% Chance of Light Rain
Humidity
84%
Feels like
60°F
Dew Point
55°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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