Port Costa, CA Weather Forecast and Current Conditions

Current Conditions From Nearby Local Station

Clear 49°F
Feels Like 49°F  
Humidity 100% Dew Point 49°F Wind Calm Barometer N/A
Report from a MADIS/MESONET weather station 1.6 mi. SSW of central Port Costa
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Point Forecast at a Glance

TueNov 25
Tue Nov 25: Fog, Low 43F
 
43
WedNov 26
Wed Nov 26: Mostly Sunny, High 61F, Low 44F
61
44
ThuNov 27
Thu Nov 27: Mostly Sunny, High 63F, Low 46F
63
46
FriNov 28
Fri Nov 28: Mostly Sunny, High 63F, Low 45F
63
45
SatNov 29
Sat Nov 29: Mostly Sunny, High 61F, Low 43F
61
43
SunNov 30
Sun Nov 30: Mostly Sunny, High 60F, Low 44F
60
44
MonDec 1
Mon Dec 1: Sunny, High 63F, Low 42F
63
42

7-Day Temperature Trend

Week Ahead Summary

High temperatures remain relatively stable through the week, ranging from 60°F to 63°F. Dry weather expected throughout the week.

Climate Context

Temperatures are expected to be near normal for this time of year, with highs around 60°F and lows around 42°F.

This Date in Weather History

1950 - A great storm hit the Northern and Central Appalachians with snow and high winds. Winds reached hurricane force along eastern slopes of the Appalachians, with gusts to 100 mph at Hartford CT, 110 mph at Concord NH, and 160 mph at Mount Washington NH. Heavy rain also hit the eastern slopes, with eight inches reported at Slide Mountain NY. The western slopes were buried under heavy snow. The storm produced record snowfall totals of 27.7 inches at Pittsburgh PA, and 36.3 inches at Steubenville OH. The snow, and record cold temperatures, resulted in 160 deaths.

More on this and other weather history

Port Costa, CA 7 Day Weather Forecast Details

Tuesday Nov 25

Fog

Night: Patchy dense fog between 1am and 3am. Otherwise, partly cloudy, with a low around 43. East wind 3 to 7 mph.

Wednesday Nov 26

Mostly Sunny

Day: Mostly sunny, with a high near 61. East wind 8 to 10 mph.

Partly Cloudy

Night: Partly cloudy, with a low around 44. East wind around 5 mph.

Thursday Nov 27

Mostly Sunny

Day: Mostly sunny, with a high near 63. East wind around 6 mph becoming north northwest in the afternoon.

Partly Cloudy

Night: Partly cloudy, with a low around 46. West wind around 5 mph becoming light and variable in the evening.

Friday Nov 28

Mostly Sunny

Day: Mostly sunny, with a high near 63.

Partly Cloudy

Night: Partly cloudy, with a low around 45.

Saturday Nov 29

Mostly Sunny

Day: Mostly sunny, with a high near 61.

Partly Cloudy

Night: Partly cloudy, with a low around 43.

Sunday Nov 30

Mostly Sunny

Day: Mostly sunny, with a high near 60.

Mostly Clear

Night: Mostly clear, with a low around 44.

Monday Dec 1

Sunny

Day: Sunny, with a high near 63.

Mostly Clear

Night: Mostly clear, with a low around 42.

Tuesday Dec 2

Sunny

Day: Sunny, with a high near 60.


About Port Costa, CA

Port Costa is a small town and census-designated place (CDP) in Contra Costa County, California, located in the East Bay region of the San Francisco Bay Area. Situated on the southern shore of the Carquinez Strait, the population was 190 in 2020 according to the United States Census Bureau.

Content from Wikipedia, licensed under CC BY-SA 3.0.

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Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.