Marine Weather Net

Port Costa, CA Weather Forecast




Crockett, California

 Lat: 38.05N, Lon: 122.21W

Current Conditions Updated: 653 AM PDT FRI APR 24 2026

Clear


Temp: 51°F
  • Humidity:
  • 85%
  • Winds:
  • 5 MPH WSW
  • Gusts:
  • N/A MPH
  • Barometer:
  • 29.95 in.
  • Dewpoint:
  • 47°F
  • Heat index:
  • 51°F

  • Sunrise:
  • 6:19 AM PDT
  • Sunset:
  • 7:52 PM PDT
  • Moonrise:
  • 1:05 PM PDT
  • Moonset:
  • 2:52 AM PDT

TODAY

PARTLY CLOUDY
Hi: 70°F
Lo: 49°F

SATURDAY

MOSTLY CLOUDY
Hi: 69°F
Lo: 49°F

SUNDAY

PARTLY CLOUDY
Hi: 69°F
Lo: 49°F
Precip: 20%

TUESDAY

MOSTLY CLEAR
Hi: 75°F
Lo: 50°F
Weather Forecast In Detail:
Forecast Issued: 602 AM PDT Fri Apr 24 2026

Today...Mostly cloudy in the morning then becoming partly cloudy. Highs around 70. West winds 5 to 15 mph.
Tonight...Mostly clear in the evening then becoming mostly cloudy. Lows in the upper 40s. Southwest winds 5 to 15 mph.
Saturday...Mostly cloudy. Highs in the upper 60s. Southwest winds 5 to 15 mph.
Saturday Night...Mostly cloudy in the evening then becoming partly cloudy. Lows in the upper 40s. Southwest winds 5 to 15 mph.
Sunday...Partly cloudy. A slight chance of rain in the morning. Highs in the upper 60s. Southwest winds around 5 mph increasing to 10 to 15 mph in the afternoon. Chance of rain 20 percent.
Sunday Night...Mostly clear. Lows in the mid 40s.
Monday And Monday Night...Mostly clear. Highs around 70. Lows in the upper 40s.
Tuesday...Mostly clear. Highs in the mid 70s. Lows around 50. && temperature / precipitation concord 69 48 65 / 10 10 livermore 68 47 65 / 10
Wednesday...Mostly clear. Highs in the mid 70s. Lows around 50. && temperature / precipitation concord 69 48 65 / 10 10 livermore 68 47 65 / 10
Thursday...Mostly clear. Highs in the mid 70s. Lows around 50. && temperature / precipitation concord 69 48 65 / 10 10 livermore 68 47 65 / 10
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