Contra Costa County, CA Weather Forecast and Current Conditions

WEATHER ALERTS - Wind Advisory

Current Conditions From Nearby Local Station

Partly Cloudy 67°F
Feels Like 67°F  
Humidity 61% Dew Point 53°F Wind SE 9 MPH Gusts 14 Barometer N/A
Report from a MADIS/MESONET weather station 0.7 miles WNW of central Contra Costa County
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Point Forecast at a Glance

ThuNov 13
Thu Nov 13: Rain Likely, Low 52F
60%
 
52
ThuNov 20
Thu Nov 20: Thunderstorms
90%
 
 
FriNov 14
Fri Nov 14: Rain, High 62F, Low 52F
30%
62
52
SatNov 15
Sat Nov 15: Rain, High 63F, Low 54F
20%
63
54
SunNov 16
Sun Nov 16: Rain, High 60F, Low 52F
50%
60
52
MonNov 17
Mon Nov 17: Rain, High 58F, Low 48F
50%
58
48
TueNov 18
Tue Nov 18: Mostly Sunny, High 59F, Low 46F
59
46

7-Day Temperature Trend

Week Ahead Summary

High temperatures remain relatively stable through the week, ranging from 58°F to 63°F. Unsettled weather expected with rain likely on at least 6 days.

Climate Context

This week's forecast shows temperatures running 5°F below the historical average for November. Normal highs for this period are around 65°F with lows around 45°F.


This Date in Weather History

1981 - A powerful cyclone brought high winds to Washington State and Oregon. The cyclone, which formed about 1000 miles west of San Francisco, intensified rapidly as it approached the Oregon coast with the central pressure reaching 28.22 inches. A wind trace from the Whiskey Run Turbine Site, about 12 miles south of Coos Bay in Oregon, showed peak gusts to 97 mph fifty feet above ground level. The wind caused widespread damage in Washington and Oregon, with 12 deaths reported. As much as four feet of snow fell in the Sierra Nevada Range of northern California.

More on this and other weather history


Contra Costa County, CA 7 Day Weather Forecast Details

Thursday Nov 13

Rain Likely

Night: Rain likely, mainly before 10pm. Mostly cloudy, with a low around 52. Breezy, with a south southwest wind 20 to 25 mph becoming light south after midnight. Winds could gust as high as 39 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

Thursday Nov 20

Thunderstorms

Day: Showers and possibly a thunderstorm before 4pm, then rain likely and possibly a thunderstorm after 4pm. Temperature rising to near 63 by 9am, then falling to around 58 during the remainder of the day. Windy, with a south southeast wind 22 to 30 mph, with gusts as high as 50 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

Friday Nov 14

Rain

Day: A 30 percent chance of rain. Mostly sunny, with a high near 62. East wind around 6 mph becoming north in the afternoon. New precipitation amounts of less than a tenth of an inch possible.

Rain

Night: A 20 percent chance of rain. Partly cloudy, with a low around 52. Light north wind. New precipitation amounts of less than a tenth of an inch possible.

Saturday Nov 15

Rain

Day: A 20 percent chance of rain. Partly sunny, with a high near 63. New precipitation amounts of less than a tenth of an inch possible.

Rain

Night: A 30 percent chance of rain. Mostly cloudy, with a low around 54.

Sunday Nov 16

Rain

Day: A chance of rain. Mostly cloudy, with a high near 60.

Rain

Night: A chance of rain. Mostly cloudy, with a low around 52.

Monday Nov 17

Rain

Day: A chance of rain, mainly before 4pm. Partly sunny, with a high near 58.

Rain

Night: A slight chance of rain. Partly cloudy, with a low around 48.

Tuesday Nov 18

Mostly Sunny

Day: Mostly sunny, with a high near 59.

Mostly Clear

Night: Mostly clear, with a low around 46.

Wednesday Nov 19

Rain

Day: A slight chance of rain. Mostly sunny, with a high near 58.


About Contra Costa County, CA

Contra Costa County ( ; Contra Costa, Spanish for 'Opposite Coast') is a county located in the U.S. state of California, in the East Bay of the San Francisco Bay Area. As of the 2020 United States census, the population was 1,165,927. The county seat is Martinez. It occupies the northern portion of the East Bay region of the San Francisco Bay Area and is primarily suburban. The county's name refers to its position on the other side of the bay from San Francisco. Contra Costa County is included in the San Francisco–Oakland–Berkeley, CA Metropolitan Statistical Area.

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

How We Provide Better Local Weather

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.