Current conditions and the National Weather Service 7-day forecast for Port Costa, California — temperature, rain chance, wind, radar and active alerts.
Saturday Aug 29 night: a low around 54°F. Sunday Aug 30: a high near 78°F and a low around 55°F. Highs over the period run 72°F to 80°F.
| Day | High | Low | Precip |
|---|---|---|---|
| Saturday Aug 29 | — | 54° | — |
| Sunday Aug 30 | 78° | 55° | — |
| Monday Aug 31 | 72° | 56° | — |
| Tuesday Sep 1 | 73° | 56° | — |
| Wednesday Sep 2 | 76° | 56° | — |
| Thursday Sep 3 | 76° | 57° | — |
| Friday Sep 4 | 78° | 57° | — |
| Saturday Sep 5 | 80° | — | — |