Current Weather Forecast for Port Costa

CA 94569  |   6:57am

Weather Conditions

50°

Feels Like 47°

Rain Shower

49° 57°

0

UV Index

Good

Air Quality

S 8 mph

Wind

0 in

rain

Today

Sun 1/4

56°

Highest Temperature

47%

Cloudy with showers. High 56F. Winds SSW at 10 to 15 mph. Chance of rain 50%.

Tonight

Sun 1/4

49°

Lowest Temperature

62%

Considerable cloudiness. Occasional rain showers after midnight. Low 49F. Winds SSE at 10 to 15 mph. Chance of rain 60%.

Tomorrow

Mon 1/5

55°

Highest Temperature

59%

Cloudy with showers. High around 55F. Winds SE at 10 to 20 mph. Chance of rain 60%.

Precipitation For Port Costa

Intermittent rain for the next hour.

Next 12 Hours Next 7 Days

Next 12 Hours Forecast in Port Costa

Hourly Weather Forecast & Temperature

7AM

82%

51°

Feels Like 48°

Showers

SSW 9 mph

Wind

1010 mb

Pressure

97%

Humidity

0

UV Index

5mi

Visibility

91%

Cloud Cover

8AM

34%

51°

Feels Like 48°

Few Showers

SSW 8 mph

Wind

1010 mb

Pressure

97%

Humidity

0

UV Index

9mi

Visibility

93%

Cloud Cover

9AM

34%

52°

Feels Like 49°

Few Showers

SSW 8 mph

Wind

1011 mb

Pressure

96%

Humidity

0

UV Index

6mi

Visibility

94%

Cloud Cover

10AM

17%

54°

Feels Like 52°

Cloudy

SSW 8 mph

Wind

1012 mb

Pressure

89%

Humidity

0

UV Index

10mi

Visibility

100%

Cloud Cover

11AM

17%

55°

Feels Like 52°

Cloudy

SSW 9 mph

Wind

1011 mb

Pressure

88%

Humidity

1

UV Index

10mi

Visibility

99%

Cloud Cover

12PM

16%

54°

Feels Like 52°

Cloudy

SSW 10 mph

Wind

1011 mb

Pressure

87%

Humidity

1

UV Index

10mi

Visibility

95%

Cloud Cover

1PM

16%

54°

Feels Like 52°

Cloudy

SSW 10 mph

Wind

1010 mb

Pressure

87%

Humidity

1

UV Index

10mi

Visibility

97%

Cloud Cover

2PM

24%

55°

Feels Like 52°

Cloudy

SSW 10 mph

Wind

1010 mb

Pressure

86%

Humidity

1

UV Index

10mi

Visibility

89%

Cloud Cover

3PM

39%

55°

Feels Like 51°

Showers

SSW 11 mph

Wind

1010 mb

Pressure

87%

Humidity

0

UV Index

7mi

Visibility

85%

Cloud Cover

4PM

33%

54°

Feels Like 51°

Few Showers

SW 10 mph

Wind

1010 mb

Pressure

87%

Humidity

0

UV Index

9mi

Visibility

72%

Cloud Cover

5PM

24%

53°

Feels Like 50°

Mostly Cloudy

SW 8 mph

Wind

1011 mb

Pressure

90%

Humidity

0

UV Index

10mi

Visibility

76%

Cloud Cover

6PM

11%

52°

Feels Like 49°

Cloudy

SW 8 mph

Wind

1011 mb

Pressure

91%

Humidity

0

UV Index

10mi

Visibility

89%

Cloud Cover

Sun 1/4

Sun

47%

49°

57°

Showers possible. Highs in the mid 50s and lows in the upper 40s.

48°

Feels Like

SSW 11 mph

Wind

92%

Humidity

1

UV Index

7:25 AM

Sunrise

5:02 PM

Sunset

Mon 1/5

Mon

59%

49°

55°

Showers. Highs in the mid 50s and lows in the upper 40s.

46°

Feels Like

SE 14 mph

Wind

83%

Humidity

1

UV Index

7:25 AM

Sunrise

5:03 PM

Sunset

Tue 1/6

Tue

16%

47°

57°

Mostly cloudy. Highs in the upper 50s and lows in the mid 40s.

45°

Feels Like

ENE 8 mph

Wind

84%

Humidity

1

UV Index

7:25 AM

Sunrise

5:04 PM

Sunset

Wed 1/7

Wed

9%

46°

58°

Times of sun and clouds. Highs in the upper 50s and lows in the low 40s.

45°

Feels Like

WSW 10 mph

Wind

81%

Humidity

2

UV Index

7:25 AM

Sunrise

5:05 PM

Sunset

Thu 1/8

Thu

6%

42°

57°

Times of sun and clouds. Highs in the upper 50s and lows in the low 40s.

39°

Feels Like

NNW 8 mph

Wind

66%

Humidity

2

UV Index

7:25 AM

Sunrise

5:06 PM

Sunset

Fri 1/9

Fri

4%

42°

55°

Plenty of sun. Highs in the mid 50s and lows in the low 40s.

38°

Feels Like

E 10 mph

Wind

60%

Humidity

2

UV Index

7:25 AM

Sunrise

5:07 PM

Sunset

Sat 1/10

Sat

5%

40°

56°

Mix of sun and clouds. Highs in the mid 50s and lows in the low 40s.

35°

Feels Like

E 11 mph

Wind

65%

Humidity

2

UV Index

7:25 AM

Sunrise

5:08 PM

Sunset

Sun 1/11

Sun

5%

40°

57°

Partly cloudy. Highs in the upper 50s and lows in the low 40s.

36°

Feels Like

E 9 mph

Wind

67%

Humidity

2

UV Index

7:25 AM

Sunrise

5:09 PM

Sunset

Need to see beyond 12 Hours?

Find more forecast on the FREE FOX WEATHER App

GO TO APP STORE

Latest Stories from California

Back-to-back storms slam West Coast, bringing heavy rain, extended flash flood threat

The West Coast from California up into the Pacific Northwest is seeing an active weather pattern filled with back-to-back storms to start off the year.

3 mins ago

Man dies in California after being swept away into creek during flooding, torrential rain

A man has died after being swept away during flooding on the West Coast this weekend, according to the Santa Barbara County Sheriff's Office.

35 mins ago

Flash flood concerns remain, evacuation warnings lifted in greater Los Angeles area

The Greater Los Angeles area is on alert for mudslides and flash flooding this weekend as heavy rain falls surrounding recent wildfire burn scars, including from the Palisades and Eaton fires in early 2025.

National weather outlook: Freezing temperatures from arctic blast ring in the New Year as far south as Florida

As we step into 2026, many hope for positive change, but winter weather shows no signs of switching up.

Load More Stories