Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Storminess to continue along the West Coast this week. Get the forecast. Chevron right

Port Costa, CA

52°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Port Costa

California

52°
No results found.
Try searching for a city, zip code or point of interest.
settings
Port Costa, CA Weather
Today WinterCast Local {stormName} Tracker Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps
News

News & Features

Astronomy

Business

Climate

Health

Recreation

Sports

Travel
For Business

Warnings

Data Suite

Forensics

Advertising

Superior Accuracy™

Video

Winter Center
Today Hourly

Daily

 Radar MinuteCast® Monthly Air Quality Health & Activities

November 17 - December 31

Mon 11/17

60° /46°
85%
Times of clouds and sun with a couple of showers

RealFeel®57°

RealFeel Shade™57°

Max UV Index1.0 (Low)

WindSSW 8 mph

Tue 11/18

64° /48°
5%
Times of clouds and sun

RealFeel®63°

RealFeel Shade™61°

Max UV Index2.0 (Low)

WindWSW 7 mph

Wed 11/19

62° /50°
25%
Mostly cloudy

RealFeel®62°

RealFeel Shade™62°

Max UV Index1.0 (Low)

WindESE 5 mph

Thu 11/20

59° /43°
84%
Breezy in the morning; mostly cloudy with a couple of showers

RealFeel®60°

RealFeel Shade™60°

Max UV Index1.0 (Low)

WindW 9 mph

Fri 11/21

67° /43°
8%
Mostly sunny

RealFeel®70°

RealFeel Shade™68°

Max UV Index3.0 (Moderate)

WindSW 1 mph

Sat 11/22

63° /40°
6%
Mostly sunny

RealFeel®64°

RealFeel Shade™61°

Max UV Index3.0 (Moderate)

WindENE 6 mph

Sun 11/23

64° /39°
8%
Low clouds breaking for some sun

RealFeel®65°

RealFeel Shade™63°

Max UV Index2.0 (Low)

WindENE 6 mph

Mon 11/24

62° /40°
2%
More clouds than sun

RealFeel®64°

RealFeel Shade™64°

Max UV Index1.0 (Low)

WindSSE 5 mph

Tue 11/25

60° /35°
25%
Mainly cloudy

RealFeel®61°

RealFeel Shade™61°

Max UV Index1.0 (Low)

WindSSW 6 mph

Wed 11/26

61° /36°
0%
Considerable cloudiness

RealFeel®59°

RealFeel Shade™59°

Max UV Index1.0 (Low)

WindWNW 6 mph

Thu 11/27

63° /33°
2%
Partly sunny

RealFeel®68°

RealFeel Shade™65°

Max UV Index3.0 (Moderate)

WindE 1 mph

Fri 11/28

60° /40°
25%
Partly sunny

RealFeel®57°

RealFeel Shade™55°

Max UV Index3.0 (Moderate)

WindS 12 mph

Sat 11/29

58° /35°
25%
Sunny to partly cloudy

RealFeel®62°

RealFeel Shade™58°

Max UV Index3.0 (Moderate)

WindSSW 5 mph

Sun 11/30

61° /36°
10%
Mostly sunny

RealFeel®66°

RealFeel Shade™61°

Max UV Index2.0 (Low)

WindNE 4 mph

Mon 12/1

60° /35°
5%
Plenty of sunshine

RealFeel®65°

RealFeel Shade™61°

Max UV Index2.0 (Low)

WindE 2 mph

Tue 12/2

59° /37°
25%
Cloudy

RealFeel®62°

RealFeel Shade™62°

Max UV Index1.0 (Low)

WindN 1 mph

Wed 12/3

57° /40°
25%
Cloudy

RealFeel®58°

RealFeel Shade™58°

Max UV Index1.0 (Low)

WindSSW 5 mph

Thu 12/4

54° /37°
60%
Mostly cloudy; a shower in spots in the morning followed by a little rain in the afternoon

RealFeel®56°

RealFeel Shade™56°

Max UV Index2.0 (Low)

WindS 4 mph

Fri 12/5

53° /36°
55%
Cloudy most of the time with a couple of showers

RealFeel®53°

RealFeel Shade™53°

Max UV Index1.0 (Low)

WindSSW 5 mph

Sat 12/6

53° /40°
56%
Considerable cloudiness; areas of drizzle in the morning followed by a little rain in the afternoon

RealFeel®55°

RealFeel Shade™55°

Max UV Index1.0 (Low)

WindSSW 5 mph

Sun 12/7

54° /40°
25%
Cloudy

RealFeel®55°

RealFeel Shade™55°

Max UV Index1.0 (Low)

WindWSW 4 mph

Mon 12/8

55° /36°
10%
Sunny

RealFeel®53°

RealFeel Shade™50°

Max UV Index2.0 (Low)

WindN 8 mph

Tue 12/9

53° /32°
20%
Mostly sunny

RealFeel®57°

RealFeel Shade™53°

Max UV Index2.0 (Low)

WindNE 4 mph

Wed 12/10

55° /35°
25%
Mostly cloudy

RealFeel®56°

RealFeel Shade™56°

Max UV Index1.0 (Low)

WindW 5 mph

Thu 12/11

52° /32°
20%
Brilliant sunshine

RealFeel®57°

RealFeel Shade™53°

Max UV Index2.0 (Low)

WindWSW 4 mph

Fri 12/12

53° /33°
75%
A mix of snow and rain in the morning; plenty of clouds

RealFeel®48°

RealFeel Shade™48°

Max UV Index1.0 (Low)

WindWSW 10 mph

Sat 12/13

52° /32°
20%
Sunshine and a few clouds

RealFeel®54°

RealFeel Shade™51°

Max UV Index2.0 (Low)

WindNW 5 mph

Sun 12/14

51° /31°
5%
Plenty of sun

RealFeel®58°

RealFeel Shade™54°

Max UV Index2.0 (Low)

WindNNW 1 mph

Mon 12/15

52° /31°
25%
Sun yielding to clouds

RealFeel®56°

RealFeel Shade™56°

Max UV Index2.0 (Low)

WindENE 1 mph

Tue 12/16

53° /33°
25%
Considerable cloudiness

RealFeel®55°

RealFeel Shade™55°

Max UV Index1.0 (Low)

WindWSW 2 mph

Wed 12/17

51° /31°
20%
Partly sunny

RealFeel®56°

RealFeel Shade™53°

Max UV Index2.0 (Low)

WindWNW 1 mph

Thu 12/18

50° /31°
10%
Mostly sunny

RealFeel®58°

RealFeel Shade™54°

Max UV Index2.0 (Low)

WindN 1 mph

Fri 12/19

51° /32°
25%
Increasing cloudiness

RealFeel®54°

RealFeel Shade™54°

Max UV Index1.0 (Low)

WindSSE 1 mph

Sat 12/20

50° /31°
64%
Periods of rain and snow ending in the morning; otherwise, after a cloudy start, sun returns

RealFeel®53°

RealFeel Shade™50°

Max UV Index2.0 (Low)

WindN 5 mph

Sun 12/21

51° /30°
25%
Increasing cloudiness

RealFeel®53°

RealFeel Shade™53°

Max UV Index2.0 (Low)

WindN 1 mph

Mon 12/22

51° /31°
25%
Mostly cloudy

RealFeel®54°

RealFeel Shade™54°

Max UV Index1.0 (Low)

WindW 1 mph

Tue 12/23

52° /33°
25%
Cloudy

RealFeel®54°

RealFeel Shade™54°

Max UV Index1.0 (Low)

WindSSW 4 mph

Wed 12/24

50° /31°
10%
Sunny

RealFeel®53°

RealFeel Shade™50°

Max UV Index2.0 (Low)

WindW 6 mph

Thu 12/25

50° /30°
20%
Sun and some clouds

RealFeel®53°

RealFeel Shade™53°

Max UV Index2.0 (Low)

WindNNW 2 mph

Fri 12/26

49° /30°
5%
Plenty of sun

RealFeel®50°

RealFeel Shade™48°

Max UV Index2.0 (Low)

WindNNE 8 mph

Sat 12/27

50° /31°
25%
Increasing cloudiness

RealFeel®53°

RealFeel Shade™53°

Max UV Index1.0 (Low)

WindESE 1 mph

Sun 12/28

50° /35°
25%
Cloudy

RealFeel®51°

RealFeel Shade™51°

Max UV Index1.0 (Low)

WindSE 4 mph

Mon 12/29

52° /40°
67%
Rain

RealFeel®44°

RealFeel Shade™44°

Max UV Index1.0 (Low)

WindSSE 16 mph

Tue 12/30

55° /38°
61%
Periods of rain

RealFeel®48°

RealFeel Shade™48°

Max UV Index1.0 (Low)

WindSE 16 mph

Wed 12/31

56° /34°
63%
Windy with rain

RealFeel®45°

RealFeel Shade™45°

Max UV Index1.0 (Low)

WindSSE 21 mph

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Weather Forecasts

Storminess to continue along the West coast this week

6 hours ago

Weather News

Father, daughter killed after being swept into ocean in California

37 minutes ago

Winter Weather

Another blast of winter weather to bring snow to the Northeast

6 hours ago

Astronomy

See the ‘Golden Comet’ shatter into 3 pieces after brush with sun

3 hours ago

Weather Forecasts

Heavy rain looms for south-central US, easing drought with flood risk

6 hours ago

 More Stories

Featured Stories

Weather News

Iran turns to cloud-seeding as historic drought causes driest fall in ...

1 hour ago

Severe Weather

California got rain, snow, landslides, wildfires, and an earthquake

2 days ago

Health

Strain of bird flu virus never before reported in people

1 hour ago
Live Blog

Did the NWS just issue the first "snowspout" warning?

LATEST ENTRY

Did the NWS issue its first ever snow waterspout warning?

5 days ago

Health

Bird flu spike driving up Thanksgiving turkey prices, experts warn


4 days ago
World North America United States California Port Costa

Weather Near Port Costa:

  • Oakland, CA
  • San Francisco, CA
  • San Jose, CA
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect RealFeel® and RealFeel Shade™ Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect RealFeel® and RealFeel Shade™ Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
© 2025 AccuWeather, Inc. "AccuWeather" and sun design are registered trademarks of AccuWeather, Inc. All Rights Reserved.
Terms of Use | Privacy Policy | Cookie Policy | About Your Privacy Do Not Sell or Share My Personal Information | Data Sources

...

...

...