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Planning ahead in San Mateo County? Our extended 14-Day Weather Forecast provides comprehensive 2-week predictions, including daily temperature highs/lows, precipitation probabilities, and long-term atmospheric trend outlooks.

San Mateo County 14-Day Weather Forecast

Friday, Oct 23, 2026

Nighttime
55°F

Overcast

Feels like 55°F

Humidity

97%

Wind Speed

11.2 mph

Precipitation

0 in

Pressure

1016 hPa

UV Index

3

Visibility

10 mi

Cloud Cover

100%

Dew Point

46°F

14-Day Extended Weather Forecast

Today

Oct 23

Overcast
65°H
53°L
0%

Sat

Oct 24

Overcast
68°H
49°L
0%

Sun

Oct 25

Overcast
69°H
48°L
0%

Mon

Oct 26

Overcast
63°H
51°L
0%

Tue

Oct 27

Overcast
62°H
51°L
0%

Wed

Oct 28

Overcast
64°H
48°L
0%

Thu

Oct 29

Overcast
67°H
48°L
0%

Fri

Oct 30

Overcast
65°H
55°L
0%

Sat

Oct 31

Overcast
65°H
52°L
0%

Sun

Nov 1

Overcast
64°H
59°L
0%

Mon

Nov 2

Overcast
60°H
60°L
0%

Air Quality (AQI)

Air quality sensors are offline for this coordinate.

Sun & Moon Phase

Sunrise

6:00 AM

Sunset

8:00 PM

Moon Phase

Waxing Gibbous

Waxing Gibbous

Wind Conditions & Storm Tracking

Wind Direction

297.2° WNW

Sustained Wind

11.2 mph

Wind Gusts

11.2 mph

14-Day Temp Range

Expected 14-Day Swings

48°
69°

High and low limits expected over the next two weeks.

Extended Local Forecasts

14 Day Weather Forecast7 Day Weather ForecastHourly Weather Tracker

Location View

San Mateo County · 37.50°N, 122.36°W
Radar Page
Coordinates37.4962°N, 122.3591°W
Elevationm
TimezoneAmerica/New_York

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Safety & Environmental Index

MetricValueStatus / Interpretation
Air Quality (AQI)N/AOffline
UV Index3Moderate Risk
Visibility10 milesClear

Frequently Asked Questions

Our 14-day forecast for San Mateo County shows detailed long-term predictions, including daily high and low temperatures, precipitation chances, and overall weather patterns.

About San Mateo County Climate & Weather

Weather forecast for San Mateo County is powered by high-resolution weather models using open-source infrastructure. Check current temperatures, rain radar graphs, hourly wind speeds, humidity values, and ultraviolet indexes directly from our weather tracking console.

Meteorological Data: Weather data for this area is aggregated from global and regional forecast models (GFS, HRRR, ERA5) and updated continuously every hour.