Hourly Weather Forecast - Port Costa, CA

12 AM
46°F
0%
3mph
E
Partly Cloudy
Humidity
81%
Feels like
46°F
Dew Point
41°F
1 AM
46°F
0%
3mph
E
Partly Cloudy
Humidity
81%
Feels like
46°F
Dew Point
41°F
2 AM
46°F
0%
3mph
E
Partly Cloudy
Humidity
80%
Feels like
46°F
Dew Point
40°F
3 AM
46°F
0%
4mph
E
Partly Cloudy
Humidity
79%
Feels like
44°F
Dew Point
40°F
4 AM
45°F
0%
4mph
E
Partly Cloudy
Humidity
78%
Feels like
44°F
Dew Point
39°F
5 AM
45°F
0%
4mph
E
Partly Cloudy
Humidity
78%
Feels like
42°F
Dew Point
38°F
6 AM
44°F
0%
4mph
E
Partly Cloudy
Humidity
80%
Feels like
42°F
Dew Point
38°F
7 AM
44°F
0%
5mph
E
Cloudy
Humidity
83%
Feels like
41°F
Dew Point
39°F
7:22 AM
8 AM
45°F
0%
5mph
E
Cloudy
Humidity
83%
Feels like
42°F
Dew Point
40°F
9 AM
47°F
0%
6mph
E
Cloudy
Humidity
79%
Feels like
44°F
Dew Point
40°F
10 AM
49°F
0%
6mph
E
Cloudy
Humidity
75%
Feels like
47°F
Dew Point
42°F
11 AM
53°F
0%
6mph
E
Cloudy
Humidity
68%
Feels like
53°F
Dew Point
42°F
12 PM
56°F
0%
6mph
E
Mostly Sunny
Humidity
62%
Feels like
56°F
Dew Point
43°F
1 PM
58°F
0%
6mph
E
Mostly Sunny
Humidity
58%
Feels like
58°F
Dew Point
43°F
2 PM
59°F
0%
6mph
E
Mostly Sunny
Humidity
58%
Feels like
59°F
Dew Point
44°F
3 PM
58°F
0%
5mph
E
Mostly Sunny
Humidity
61%
Feels like
58°F
Dew Point
44°F
4 PM
56°F
0%
5mph
E
Mostly Sunny
Humidity
66%
Feels like
56°F
Dew Point
45°F
5 PM
53°F
0%
4mph
E
Mostly Sunny
Humidity
72%
Feels like
53°F
Dew Point
44°F
5:17 PM
6 PM
50°F
0%
4mph
E
Mostly Clear
Humidity
77%
Feels like
50°F
Dew Point
43°F
7 PM
48°F
0%
4mph
E
Mostly Clear
Humidity
79%
Feels like
47°F
Dew Point
42°F
8 PM
47°F
0%
3mph
E
Mostly Clear
Humidity
81%
Feels like
46°F
Dew Point
41°F
9 PM
46°F
0%
3mph
E
Mostly Clear
Humidity
82%
Feels like
45°F
Dew Point
41°F
10 PM
45°F
0%
3mph
E
Partly Cloudy
Humidity
82%
Feels like
44°F
Dew Point
40°F
11 PM
45°F
0%
4mph
ENE
Partly Cloudy
Humidity
83%
Feels like
43°F
Dew Point
40°F

Snow Forecast through Sunday

Unrelenting Storm Track Brings Snow to Great Lakes & Eastern U.S.

Two main areas of low pressure will produce snow in the Upper Midwest, Great Lakes and eastern U.S.

Monday's Weather Outlook

Monday's Weather Outlook

Weekly Drought Map for January 15, 2026

Active Weather Creates Mix of Improvements, Degradations to Drought Depiction

Vehicle driving in wintry conditions

Prepare Your Car for Cold Weather

(Image provided by NOAA)

Polar Vortex: What Is It?

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

Safety Tips For Icy Surfaces

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