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City of San Mateo, CASan Mateo, CA 7-Day Night Weather Forecast
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San Mateo, CA Weather Forecast
San Mateo, CA Weather Forecast Date: 302 AM PDT Tue Sep 29 2026
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Rest of Tonight... Mostly clear. Lows in the mid 50s. South winds up to 5 mph.
Tuesday... Sunny. Highs in the upper 70s to mid 80s. West winds up to 5 mph increasing to 10 to 20 mph in the afternoon.
Tuesday Night... Mostly clear. Lows in the upper 50s. Southwest winds 10 to 20 mph...Becoming south 5 to 10 mph after midnight.
Wednesday... Sunny. Highs in the 80s. South winds up to 5 mph... Becoming west in the afternoon.
Wednesday Night... Mostly clear. Lows in the upper 50s. West winds 10 to 15 mph...Becoming southwest up to 5 mph after midnight.
Thursday... Partly cloudy in the morning then becoming sunny. Highs in the 70s to upper 80s.
Thursday Night... Mostly clear in the evening then becoming partly cloudy. Lows in the upper 50s.
Friday... Partly cloudy. Highs in the 70s to upper 80s. Lows in the lower 60s.
Saturday... Partly cloudy. Highs in the 70s to upper 80s. Lows in the lower 60s.
Saturday Night... Mostly clear. Lows in the lower 60s. Highs in the 70s to upper 80s.
Sunday... Mostly clear. Lows in the lower 60s. Highs in the 70s to upper 80s.
POP = Probability of Precipitation
San Mateo Radar Loop
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