Marine Weather Net

Port Costa, CA Weather Forecast




Crockett, California

 Lat: 38.05N, Lon: 122.21W

Current Conditions Updated: 353 AM PDT SAT MAR 14 2026

Clear


Temp: 52°F
  • Humidity:
  • 80%
  • Winds:
  • 5 MPH SSE
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30.04 in.
  • Dewpoint:
  • 46°F
  • Heat index:
  • 52°F

  • Sunrise:
  • 7:20 AM PDT
  • Sunset:
  • 7:14 PM PDT
  • Moonrise:
  • 5:07 AM PDT
  • Moonset:
  • 2:49 PM PDT

TONIGHT

MOSTLY CLEAR
Lo: 45°F

SATURDAY

SUNNY

Hi: 79°F
Lo: 50°F

SUNDAY

SUNNY

Hi: 85°F
Lo: 55°F

MONDAY

SUNNY

Hi: 89°F
Lo: 60°F
Weather Forecast In Detail:
Forecast Issued: 302 AM PDT Sat Mar 14 2026

Rest Of Tonight...Mostly clear. Lows in the mid 40s to lower 50s. Southwest winds around 5 mph.
Saturday...Sunny. Highs in the upper 70s. West winds 5 to 10 mph...Becoming northwest 5 to 15 mph in the afternoon.
Saturday Night...Mostly clear. Lows in the upper 40s to mid 50s. West winds 5 to 10 mph.
Sunday...Sunny in the morning then becoming partly cloudy. Highs in the mid 80s. Northwest winds 5 to 10 mph.
Sunday Night...Partly cloudy. Lows in the mid 50s. Northwest winds 5 to 10 mph...Becoming southwest after midnight.
Monday...Partly cloudy in the morning then becoming sunny. Highs in the upper 80s.
Monday Night...Clear. Lows in the upper 50s. Highs around 90.
Tuesday...Clear. Lows in the upper 50s. Highs around 90.
Wednesday And Wednesday Night...Mostly clear. Highs in the lower 90s. Lows in the upper 50s.
Thursday And Thursday Night...Partly cloudy. Highs in the lower 90s. Lows around 60.
Friday...Sunny. Highs in the mid 90s. && temperature / precipitation concord 49 79 51 86 / livermore 45 77 48 83 /
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