Hourly Weather Forecast - Port Costa, CA

12 AM
47°F
0%
5mph
WSW
Hazy
Humidity
96%
Feels like
45°F
Dew Point
46°F
1 AM
47°F
0%
5mph
WSW
Partly Cloudy
Humidity
97%
Feels like
45°F
Dew Point
46°F
2 AM
47°F
0%
4mph
WSW
Partly Cloudy
Humidity
98%
Feels like
45°F
Dew Point
46°F
3 AM
47°F
0%
4mph
WSW
Partly Cloudy
Humidity
98%
Feels like
45°F
Dew Point
46°F
4 AM
47°F
0%
4mph
WSW
Partly Cloudy
Humidity
98%
Feels like
45°F
Dew Point
46°F
5 AM
47°F
0%
4mph
WSW
Mostly Cloudy
Humidity
97%
Feels like
45°F
Dew Point
46°F
6 AM
47°F
0%
4mph
WSW
Cloudy
Humidity
97%
Feels like
46°F
Dew Point
46°F
7 AM
48°F
0%
4mph
WSW
Cloudy
Humidity
96%
Feels like
47°F
Dew Point
47°F
7:07 AM
8 AM
50°F
0%
4mph
WSW
Cloudy
Humidity
97%
Feels like
49°F
Dew Point
49°F
9 AM
51°F
0%
4mph
WSW
Mostly Cloudy
Humidity
97%
Feels like
51°F
Dew Point
51°F
10 AM
53°F
0%
4mph
W
Partly Cloudy
Humidity
91%
Feels like
53°F
Dew Point
51°F
11 AM
55°F
0%
5mph
W
Partly Cloudy
Humidity
87%
Feels like
55°F
Dew Point
51°F
12 PM
56°F
0%
6mph
W
Mostly Sunny
Humidity
81%
Feels like
56°F
Dew Point
51°F
1 PM
58°F
0%
6mph
W
Sunny
Humidity
75%
Feels like
58°F
Dew Point
50°F
2 PM
59°F
0%
7mph
W
Sunny
Humidity
71%
Feels like
59°F
Dew Point
50°F
3 PM
59°F
0%
7mph
W
Sunny
Humidity
72%
Feels like
59°F
Dew Point
49°F
4 PM
57°F
0%
7mph
W
Sunny
Humidity
74%
Feels like
57°F
Dew Point
49°F
5 PM
55°F
0%
7mph
W
Sunny
Humidity
79%
Feels like
55°F
Dew Point
48°F
5:38 PM
6 PM
53°F
0%
6mph
W
Clear
Humidity
82%
Feels like
53°F
Dew Point
48°F
7 PM
51°F
0%
6mph
WSW
Clear
Humidity
85%
Feels like
51°F
Dew Point
47°F
8 PM
50°F
0%
6mph
WSW
Clear
Humidity
87%
Feels like
50°F
Dew Point
46°F
9 PM
49°F
0%
6mph
WSW
Clear
Humidity
89%
Feels like
46°F
Dew Point
46°F
10 PM
48°F
10%
6mph
WSW
Hazy
Humidity
91%
Feels like
45°F
Dew Point
45°F
11 PM
47°F
10%
6mph
WSW
Hazy
Humidity
94%
Feels like
44°F
Dew Point
45°F

Friday's Weather Outlook

Friday's Weather Outlook

A snow-filled clipper system is set to sweep through the Great Lakes, Ohio Valley, and Mid-Atlantic.

Weekend Weather Preview

Weekend Weather Preview

Weekly Drought Map for February 5, 2026

Scarce Precipitation Leads to Widespread Drought Degradation

Image courtesy of Pixabay.com

All About Snow Squalls

A person in a pink coat and red mittens holding a snowball. (Image by Dmitriy Gutarev from Pixabay)

Cold Weather and Worsening Health Conditions

Windchill chart

Dangers of Wind Chills

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide