Marine Weather Net

San Mateo, CA Weather Forecast




San Mateo, California

 Lat: 37.56N, Lon: 122.32W

Current Conditions Updated: 556 AM PDT FRI AUG 21 2026

Overcast
Temp: 58°F
  • Humidity:
  • 93%
  • Winds:
  • 9 MPH WNW
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30.03 in.
  • Dewpoint:
  • 56°F
  • Heat index:
  • 58°F

  • Sunrise:
  • 6:29 AM PDT
  • Sunset:
  • 7:52 PM PDT
  • Moonrise:
  • 3:56 PM PDT
  • Moonset:
  • 12:12 AM PDT

TODAY

PARTLY CLOUDY
Hi: 70°F
Lo: 59°F

SATURDAY

SUNNY

Hi: 75°F
Lo: 59°F

SUNDAY

PARTLY CLOUDY
Hi: 75°F
Lo: 59°F

MONDAY

SUNNY

Hi: 75°F
Lo: 59°F
Weather Forecast In Detail:
Forecast Issued: 602 AM PDT Fri Aug 21 2026

Today...Mostly cloudy in the morning then becoming partly cloudy. Highs in the upper 60s to mid 70s. West winds 10 to 20 mph.
Tonight...Mostly clear in the evening then becoming mostly cloudy. Lows in the upper 50s. West winds 10 to 20 mph.
Saturday...Mostly cloudy in the morning then becoming sunny. Highs in the 70s. West winds 5 to 10 mph increasing to 10 to 20 mph in the afternoon.
Saturday Night...Clear in the evening then becoming partly cloudy. Lows in the upper 50s. West winds 10 to 20 mph.
Sunday...Mostly cloudy in the morning then becoming partly cloudy. Highs in the 70s. West winds 5 to 15 mph.
Sunday Night...Partly cloudy in the evening then becoming mostly cloudy. Lows in the upper 50s.
Monday...Mostly cloudy in the morning then becoming sunny. Highs in the 70s.
Monday Night...Mostly clear in the evening then becoming partly cloudy. Lows in the upper 50s.
Tuesday...Mostly cloudy. Highs in the upper 60s to mid 70s.
Tuesday Night...Mostly clear in the evening then becoming partly cloudy. Lows in the upper 50s.
Wednesday...Mostly cloudy in the morning then becoming partly cloudy. Highs in the 60s to upper 70s.
Wednesday Night...Mostly clear. Lows in the upper 50s.
Thursday...Mostly cloudy in the morning then becoming partly cloudy. Highs in the upper 60s to lower 80s. && temperature / precipitation sfo airport 69 58 71 / oakland 70 58 73 / fremont 73 59 76 / redwood city 76 59 78 / mountain view 71 59 73 /
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