Hourly Weather Forecast - Costa Mesa, CA

9 AM
61°F
0%
2mph
NNW
Mostly Cloudy
Humidity
82%
Feels like
61°F
Dew Point
56°F
10 AM
63°F
0%
2mph
NW
Mostly Cloudy
Humidity
73%
Feels like
63°F
Dew Point
55°F
11 AM
65°F
0%
2mph
WNW
Mostly Cloudy
Humidity
73%
Feels like
65°F
Dew Point
56°F
12 PM
65°F
0%
3mph
WNW
Partly Cloudy
Humidity
73%
Feels like
65°F
Dew Point
57°F
1 PM
66°F
0%
4mph
W
Partly Cloudy
Humidity
72%
Feels like
66°F
Dew Point
57°F
2 PM
66°F
0%
4mph
W
Partly Cloudy
Humidity
74%
Feels like
66°F
Dew Point
57°F
3 PM
65°F
0%
4mph
W
Mostly Sunny
Humidity
75%
Feels like
65°F
Dew Point
57°F
4 PM
63°F
0%
4mph
W
Partly Cloudy
Humidity
82%
Feels like
63°F
Dew Point
57°F
4:44 PM
5 PM
61°F
0%
3mph
W
Partly Cloudy
Humidity
87%
Feels like
61°F
Dew Point
57°F
6 PM
60°F
0%
2mph
WNW
Mostly Clear
Humidity
89%
Feels like
60°F
Dew Point
57°F
7 PM
59°F
0%
2mph
WNW
Clear
Humidity
89%
Feels like
59°F
Dew Point
56°F
8 PM
58°F
0%
2mph
NW
Mostly Clear
Humidity
87%
Feels like
58°F
Dew Point
54°F
9 PM
57°F
0%
2mph
NNW
Mostly Clear
Humidity
89%
Feels like
57°F
Dew Point
54°F
10 PM
56°F
0%
2mph
N
Hazy
Humidity
92%
Feels like
56°F
Dew Point
54°F
11 PM
55°F
0%
2mph
N
Partly Cloudy
Humidity
94%
Feels like
55°F
Dew Point
53°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

Sunday Weather Outlook

Today'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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