National Weather Service forecast

Port Costa, California Weather

48°Overnight: Mostly Clear
Wind E 9 mph
7-DayHourlyRadar

Port Costa 7-Day Forecast

  1. Overnight
    48°F
    Mostly Clear

    Mostly clear, with a low around 48. East wind around 9 mph.

  2. Wednesday
    66°F
    Sunny
    2% chance of precipitation

    Sunny. High near 66, with temperatures falling to around 62 in the afternoon. West northwest wind 5 to 9 mph.

  3. Wednesday Night
    48°F
    Mostly Cloudy
    2% chance of precipitation

    Mostly cloudy, with a low around 48. West southwest wind around 7 mph.

  4. Thursday
    70°F
    Mostly Sunny

    Mostly sunny, with a high near 70. West northwest wind around 5 mph.

  5. Thursday Night
    48°F
    Mostly Clear

    Mostly clear, with a low around 48. West wind around 5 mph.

  6. Friday
    71°F
    Sunny

    Sunny, with a high near 71.

  7. Friday Night
    49°F
    Mostly Clear

    Mostly clear, with a low around 49.

  8. Saturday
    72°F
    Sunny

    Sunny, with a high near 72.

  9. Saturday Night
    50°F
    Mostly Clear

    Mostly clear, with a low around 50.

  10. Sunday
    71°F
    Mostly Sunny

    Mostly sunny, with a high near 71.

  11. Sunday Night
    51°F
    Partly Cloudy

    Partly cloudy, with a low around 51.

  12. Monday
    69°F
    Mostly Sunny
    2% chance of precipitation

    Mostly sunny, with a high near 69.

  13. Monday Night
    50°F
    Partly Cloudy
    2% chance of precipitation

    Partly cloudy, with a low around 50.

  14. Tuesday
    70°F
    Sunny
    5% chance of precipitation

    Sunny, with a high near 70.

Issued by the National Weather Service (MTR office), updated .

Port Costa Hourly Forecast

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Full 100+ hour forecast for Port Costa

Port Costa Weather Radar

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About Port Costa

Population (2020 Census)
190
Coordinates
38.044, -122.185
Elevation
440 ft
NWS forecast office
MTR
Time zone
America/Los Angeles
Sunrise today
6:37 AM PST
Sunset today
5:06 PM PST
Daylight today
10 h 29 min

Port Costa Weather Questions

What is the weather forecast for Port Costa, California?

Overnight: Mostly clear, with a low around 48. East wind around 9 mph. Wednesday: Sunny. High near 66, with temperatures falling to around 62 in the afternoon. West northwest wind 5 to 9 mph.

Will it rain or snow in Port Costa this week?

Not much. The highest chance of precipitation in the 7-day forecast is 5%, Tuesday.

How warm and how cold will it get in Port Costa this week?

The warmest day is Saturday, with a high near 72°F. The coldest night is Overnight, with a low near 48°F.

What time are sunrise and sunset in Port Costa today?

Sunrise is at 6:37 AM PST and sunset is at 5:06 PM PST, for 10 h 29 min of daylight.

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