Hourly Weather Forecast - Costa Mesa, CA

12 AM
58°F
0%
2mph
SE
Clear
Humidity
86%
Feels like
58°F
Dew Point
54°F
1 AM
57°F
0%
2mph
ESE
Clear
Humidity
87%
Feels like
57°F
Dew Point
53°F
2 AM
57°F
0%
2mph
ESE
Clear
Humidity
88%
Feels like
57°F
Dew Point
53°F
3 AM
56°F
0%
2mph
ESE
Clear
Humidity
89%
Feels like
56°F
Dew Point
53°F
4 AM
56°F
0%
2mph
ESE
Clear
Humidity
89%
Feels like
56°F
Dew Point
53°F
5 AM
55°F
0%
2mph
ESE
Hazy
Humidity
94%
Feels like
55°F
Dew Point
54°F
6 AM
56°F
0%
2mph
ESE
Hazy
Humidity
95%
Feels like
56°F
Dew Point
54°F
6:51 AM
7 AM
58°F
0%
2mph
ESE
Hazy
Humidity
92%
Feels like
58°F
Dew Point
55°F
8 AM
60°F
0%
2mph
ESE
Sunny
Humidity
87%
Feels like
60°F
Dew Point
56°F
9 AM
63°F
0%
2mph
SE
Sunny
Humidity
79%
Feels like
63°F
Dew Point
56°F
10 AM
65°F
0%
2mph
SSE
Sunny
Humidity
71%
Feels like
65°F
Dew Point
55°F
11 AM
67°F
0%
3mph
S
Sunny
Humidity
69%
Feels like
67°F
Dew Point
56°F
12 PM
68°F
0%
4mph
S
Mostly Sunny
Humidity
68%
Feels like
68°F
Dew Point
57°F

Wind chill temperatures Monday A.M.

Cold Weather Chills the Nation Down to the Gulf

Extreme cold paired with their wind chill values will shiver much of the nation.

Snowfall forecast through Monday evening.

Mid-Atlantic, Great Lakes Snow Piles Up

Monday's Weather Outlook

Monday's Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

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