Hourly Weather Forecast - Costa Mesa, CA

6 AM
54°F
0%
4mph
NE
Clear
Humidity
73%
Feels like
54°F
Dew Point
46°F
6:44 AM
7 AM
57°F
0%
4mph
NE
Sunny
Humidity
67%
Feels like
57°F
Dew Point
46°F
8 AM
61°F
0%
3mph
ENE
Sunny
Humidity
57%
Feels like
61°F
Dew Point
46°F
9 AM
66°F
0%
3mph
SE
Sunny
Humidity
49%
Feels like
66°F
Dew Point
46°F
10 AM
71°F
0%
2mph
S
Sunny
Humidity
42%
Feels like
71°F
Dew Point
47°F
11 AM
74°F
0%
2mph
SSW
Sunny
Humidity
38%
Feels like
74°F
Dew Point
47°F
12 PM
76°F
0%
3mph
WSW
Sunny
Humidity
36%
Feels like
76°F
Dew Point
47°F
1 PM
76°F
0%
3mph
W
Sunny
Humidity
36%
Feels like
76°F
Dew Point
48°F
2 PM
76°F
0%
3mph
W
Sunny
Humidity
38%
Feels like
76°F
Dew Point
49°F
3 PM
74°F
0%
3mph
W
Sunny
Humidity
42%
Feels like
74°F
Dew Point
49°F
4 PM
71°F
0%
3mph
W
Sunny
Humidity
47%
Feels like
71°F
Dew Point
50°F
4:43 PM
5 PM
69°F
0%
2mph
WNW
Clear
Humidity
51%
Feels like
69°F
Dew Point
50°F
6 PM
68°F
0%
2mph
NW
Clear
Humidity
53%
Feels like
68°F
Dew Point
50°F
7 PM
66°F
0%
2mph
NNW
Clear
Humidity
55%
Feels like
66°F
Dew Point
49°F
8 PM
64°F
0%
2mph
N
Clear
Humidity
55%
Feels like
64°F
Dew Point
48°F
9 PM
62°F
0%
3mph
NNE
Clear
Humidity
56%
Feels like
62°F
Dew Point
46°F
10 PM
61°F
0%
3mph
NNE
Clear
Humidity
56%
Feels like
61°F
Dew Point
45°F
11 PM
59°F
0%
3mph
NE
Clear
Humidity
57%
Feels like
59°F
Dew Point
44°F

Rainfall Forecast for Northwest through Thursday

Heavy Rain, Flooding Soaks The Northwest

A fast-moving series of atmospheric rivers continue to drench the Pacific Northwest today through Thursday.

Snow and ice forecast through Thursday A.M.

Snow Barrels Across the Northern U.S.

Today's Weather Outlook

Today's Weather Outlook

Weekly Drought Map for December 4, 2025

Active Week of Weather Leads to Mixed Drought Results

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

Cold Air Damming - Cause And Effects

People skating on a frozen pond on a clear day. (Image by Q K from Pixabay)

Safety Tips For Icy Surfaces

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide