Weather forecast for 10 days
Port Costa, CA

Weather forecast for the weekend

Sunday, Jun 8.

Mostly Sunny
5:44 am

8:31 pm
PDT
Mostly Sunny
72°F / 55°F
  • Wind: 17mph SW
  • Humidity: 76%
  • Precip. probability: 4%
  • Precipitation: 0"
  • UV index: 10
Today, in Port Costa, mostly sunny weather is likely, with high visibility.
Temperature is forecasted to swing from a high of a pleasant 71.6°F to a low of a refreshing 55.4°F.
The temperature of 71.6°F aligns more with what is typical in May than what is normal in June.
Sunrise will be at 5:44 am and sunset at 8:31 pm; the daylight will last for 14h and 47min.

Frequently asked questions

What is the weather forecast for Port Costa for the next ten days?
In Port Costa, a combination of sunny and cloudy weather is anticipated for the next ten days.
How warm will it be in the next ten days?
The maximum temperature will vary between 71.6°F and 78.8°F, while the minimum temperature will be between 51.8°F and 55.4°F.
What will be the warmest and the coldest days?
The warmest days will be next Monday and Tuesday, with a maximum of 78.8°F. Today is the coldest day, with a maximum temperature of 71.6°F.

Long-term weather forecast

SunJun 8.
  • 72°F
  • 55°F
Mostly Sunny
Mostly Sunny
  • Wind: 17mph SW
  • Humidity: 76%
  • UV index: 10
  • Precip. probability: 4%
  • Precipitation: 0"
  • 5:44 am 8:31 pm PDT
MonJun 9.
  • 75°F
  • 55°F
Partly Cloudy
Partly Cloudy
  • Wind: 17mph SW
  • Humidity: 68%
  • UV index: 10
  • Precip. probability: 7%
  • Precipitation: 0"
  • 5:44 am 8:32 pm PDT
TueJun 10.
  • 73°F
  • 54°F
Partly Cloudy
Partly Cloudy
  • Wind: 17mph SW
  • Humidity: 68%
  • UV index: 10
  • Precip. probability: 7%
  • Precipitation: 0"
  • 5:43 am 8:32 pm PDT
WedJun 11.
  • 73°F
  • 52°F
Partly Cloudy
Partly Cloudy
  • Wind: 16mph SW
  • Humidity: 61%
  • UV index: 10
  • Precip. probability: 6%
  • Precipitation: 0"
  • 5:43 am 8:33 pm PDT
ThuJun 12.
  • 77°F
  • 54°F
Sunny
Sunny
  • Wind: 16mph SW
  • Humidity: 57%
  • UV index: 10
  • Precip. probability: 4%
  • Precipitation: 0"
  • 5:43 am 8:33 pm PDT
FriJun 13.
  • 77°F
  • 52°F
Sunny
Sunny
  • Wind: 16mph SW
  • Humidity: 55%
  • UV index: 10
  • Precip. probability: 4%
  • Precipitation: 0"
  • 5:43 am 8:34 pm PDT
SatJun 14.
  • 75°F
  • 52°F
Partly Cloudy
Partly Cloudy
  • Wind: 15mph SW
  • Humidity: 56%
  • UV index: 10
  • Precip. probability: 4%
  • Precipitation: 0"
  • 5:43 am 8:34 pm PDT
SunJun 15.
  • 77°F
  • 52°F
Partly Cloudy
Partly Cloudy
  • Wind: 14mph SW
  • Humidity: 54%
  • UV index: 10
  • Precip. probability: 4%
  • Precipitation: 0"
  • 5:43 am 8:34 pm PDT
MonJun 16.
  • 79°F
  • 54°F
Mostly Sunny
Mostly Sunny
  • Wind: 15mph WSW
  • Humidity: 51%
  • UV index: 10
  • Precip. probability: 4%
  • Precipitation: 0"
  • 5:44 am 8:35 pm PDT
TueJun 17.
  • 79°F
  • 55°F
Sunny
Sunny
  • Wind: 16mph WSW
  • Humidity: 48%
  • UV index: 10
  • Precip. probability: 2%
  • Precipitation: 0"
  • 5:44 am 8:35 pm PDT
Conditions over the next ten days suggest that a combination of mostly clear and gloomy weather is anticipated.
Rain is not expected in Port Costa in the upcoming period.
In the upcoming days, the maximum temperature will range between 71.6°F and 78.8°F, while the lowest nightly temperature differences will be negligible, as the lowest temperatures will remain in the range of 51.8°F to 55.4°F.
With a maximum temperature of 78.8°F, next Monday and Tuesday will be the warmest days; today is the coldest day, with a maximum temperature of 71.6°F.
Updated: Jun 8, 2025 @ 11:29:12 UTC
Published by: Weather Atlas | About Us
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