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United States weather

10 day weather forecast for San Mateo County

Sunday, June 14th, 2026, at 06:53 PM
today
Coastal Flood Advisory
Sunny
27° 13°
tomorrow
Sunny
22° 13°
Tuesday
Sunny
24° 13°
Wednesday
Sunny
21° 13°
Thursday
Sunny
20° 12°
Friday
Cloudy
18° 12°
Saturday
Partly cloudy
18° 12°
 More Details See
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San Mateo County Weather Pages

San Mateo County weather forecast

The weather forecast for San Mateo County over the next 3 days indicates warm and humid conditions with a humidity level of about 81% with temperatures ranging from 22 °F to 27 °F.

Wind speeds are expected to be breezy, averaging around 14 km/h.

On Wednesday, a notable cooling trend with temperatures reaching 21°C, and light showers with a 9% chance.

Weather today
San Mateo County weather forecast

San Mateo County 14 days weather forecast

This weeks weather in San Mateo County. Click on a date for detailed forecasts
Sun. 14
27°
13°
Weather Alert
Sunny
0 mm
Mon. 15
22°
13°
Sunny
0 mm
Tue. 16
24°
13°
Sunny
0 mm
Wed. 17
21°
13°
Sunny
0 mm
Thu. 18
20°
12°
Sunny
0.1 mm
Fri. 19
18°
12°
Cloudy
0.1 mm
Sat. 20
18°
12°
Partly cloudy
0.1 mm
Sun. 21
21°
10°
Sunny
0 mm
Mon. 22
22°
12°
Sunny
0 mm
Tue. 23
24°
12°
Sunny
0 mm
Wed. 24
23°
12°
Sunny
0 mm
Thu. 25
19°
11°
Sunny
0 mm
Fri. 26
18°
11°
Sunny
0 mm
Sat. 27
21°
11°
Sunny
0 mm
Further Ahead
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Access San Mateo County weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
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San Mateo County long range weather forecast

30 day weather forecast for San Mateo County
May
July
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Overcast
17°
2
Overcast
19°
3
Mist
21°
4
Cloudy
20°
5
Mist
21°
6
Overcast
18°
7
Mist
19°
8
Mist
18°
9
Overcast
18°
10
Mist
20°
11
Mist
23°
12
Mist
20°
13
Mist
20°
14
Weather Alert Sunny
27°
15
Sunny
22°
16
Sunny
24°
17
Sunny
21°
18
Sunny
20°
19
Cloudy
18°
20
Partly cloudy
18°
21
Sunny
21°
22
Sunny
22°
23
Sunny
24°
24
Sunny
23°
25
Sunny
19°
26
Sunny
18°
27
Sunny
21°
28
Partly cloudy
23°
29
Cloudy
21°
30
Partly cloudy
19°
Important Notice
Our San Mateo County long range weather forecast is based on historical data analysis rather than real-time forecasting models. While this provides a general outlook, weather conditions can change. We recommend checking the forecast closer to your planned date for the most current information.

Rain Forecast for the Next 14 Days in San Mateo County

The chart displays the expected rainfall values (in mm) over the next 14 days in San Mateo County, highlighting variations in precipitation levels for specific dates. ☔

San Mateo County Wind Speed Forecast Chart

This chart illustrates the projected daily max wind speed (in km) in San Mateo County over the next two weeks, providing insights into periods of increased or decreased wind activity. 🌀

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Location coordinates Where is San Mateo County?

Get accurate weather forecasts for San Mateo County, located at latitude 37.563 and longitude -122.326. Stay updated with localized weather information tailored for San Mateo County.

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