Hourly Weather Forecast - Costa Mesa, CA

12 AM
53°F
0%
4mph
SE
Cloudy
Humidity
78%
Feels like
53°F
Dew Point
46°F
1 AM
52°F
0%
4mph
SE
Cloudy
Humidity
78%
Feels like
52°F
Dew Point
45°F
2 AM
51°F
0%
4mph
SE
Cloudy
Humidity
79%
Feels like
51°F
Dew Point
44°F
3 AM
49°F
0%
4mph
ESE
Cloudy
Humidity
81%
Feels like
48°F
Dew Point
44°F
4 AM
49°F
0%
4mph
ESE
Cloudy
Humidity
83%
Feels like
47°F
Dew Point
44°F
5 AM
48°F
0%
4mph
ESE
Cloudy
Humidity
85%
Feels like
46°F
Dew Point
44°F

Snowfall forecast through Saturday A.M.

More Snow Across the Northern U.S. into the Midwest

The parade of snow will continue across the northern U.S. and Midwest through the end of the week.

Rainfall Forecast for Northwest through Friday A.M.

Rains Finally Easing Across the Northwest

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