Marine Weather Net

Port Costa, CA Weather Forecast




Crockett, California

 Lat: 38.05N, Lon: 122.21W

Current Conditions Updated: 753 PM PST SUN NOV 9 2025

Clear


Temp: 63°F
  • Humidity:
  • 77%
  • Winds:
  • 3 MPH SSE
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30.12 in.
  • Dewpoint:
  • 56°F
  • Heat index:
  • 63°F

  • Sunrise:
  • 6:41 AM PST
  • Sunset:
  • 5:01 PM PST
  • Moonrise:
  • 9:05 PM PST
  • Moonset:
  • 11:41 AM PST

TONIGHT

PARTLY CLOUDY
Lo: 55°F

MONDAY

PARTLY CLOUDY
Hi: 80°F
Lo: 55°F

VETERANS DAY

MOSTLY CLOUDY
Hi: 79°F
Lo: 51°F

WEDNESDAY

CHANCE OF RAIN
Hi: 70°F
Lo: 55°F
Weather Forecast In Detail:
Forecast Issued: 501 PM PST Sun Nov 09 2025

Tonight...Partly cloudy. Lows in the mid 50s. Northeast winds around 5 mph.
Monday...Partly cloudy. Highs around 80. North winds around 5 mph.
Monday Night...Mostly cloudy. Lows in the mid 50s. North winds around 5 mph.
Veterans Day...Mostly cloudy. Highs in the upper 70s. Northeast winds around 5 mph...Becoming northwest in the afternoon.
Tuesday Night...Partly cloudy in the evening then becoming mostly cloudy. Lows in the lower 50s. West winds around 5 mph.
Wednesday...Mostly cloudy. A slight chance of rain. Highs around 70.
Wednesday Night...Rain. Lows in the mid 50s.
Thursday...Rain. Highs in the lower 60s.
Thursday Night And Friday...Mostly cloudy. A chance of rain. Lows in the upper 40s. Highs around 60.
Friday Night...Partly cloudy. A slight chance of rain. Lows in the upper 40s. Highs in the lower 60s.
Saturday...Partly cloudy. A slight chance of rain. Lows in the upper 40s. Highs in the lower 60s.
Sunday...Mostly cloudy. A chance of rain. Highs in the lower 60s. && temperature / precipitation concord 55 80 55 78 / livermore 55 82 54 80 /
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