Weather WorldPort Costa, CA 7-Day Night Weather Forecast
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Port Costa, CA Weather Forecast
Port Costa, CA Weather Forecast Date: 202 PM PST Sat Nov 07 2026
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Rest of Today... Sunny. Highs in the mid 70s. West winds up to 5 mph.
Tonight... Clear in the evening then becoming partly cloudy. Patchy fog after midnight. Lows around 50. West winds up to 5 mph in the evening...Becoming light.
Sunday... Partly cloudy. Patchy fog in the morning. Highs in the mid 70s. Northwest winds up to 5 mph.
Sunday Night... Partly cloudy in the evening then becoming mostly cloudy. Lows around 50. Light winds.
Monday... Partly cloudy. Patchy fog in the morning. Highs in the mid 70s. Northwest winds 5 to 10 mph.
Monday Night... Mostly clear except patchy fog. Lows around 50.
Tuesday... Sunny. Highs in the mid 70s.
Tuesday Night... Clear. Lows around 50.
Veterans Day... Mostly clear. Highs in the mid 70s. Lows in the upper 40s.
Wednesday Night... Mostly clear. Highs in the mid 70s. Lows in the upper 40s.
Thursday... Partly cloudy. Highs in the mid 70s. Lows around 50.
Thursday Night... Partly cloudy. Highs in the mid 70s. Lows around 50.
POP = Probability of Precipitation
Port Costa Radar Loop
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