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San Mateo County (San Mateo)
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10 day weather forecast for San Mateo County

Sunday, September 13th, 2026, at 01:48 AM
today
Sunny
20° 13°
tomorrow
Sunny
24° 12°
Tuesday
Sunny
23° 12°
Wednesday
Sunny
23° 12°
Thursday
Sunny
23° 13°
Friday
Sunny
22° 13°
Saturday
Partly cloudy
22° 13°
 More Details See
more
San Mateo County Weather Pages

San Mateo County weather forecast

The weather forecast for San Mateo County over the next 5 days indicates comfortable conditions with temperatures ranging from 20 °F to 24 °F.

Wind speeds are expected to be strong, averaging around 25 km/h.

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. 13
20°
13°
Sunny
0 mm
Mon. 14
24°
12°
Sunny
0 mm
Tue. 15
23°
12°
Sunny
0 mm
Wed. 16
23°
12°
Sunny
0 mm
Thu. 17
23°
13°
Sunny
0 mm
Fri. 18
22°
13°
Sunny
0 mm
Sat. 19
22°
13°
Partly cloudy
0 mm
Sun. 20
22°
13°
Overcast
0 mm
Mon. 21
21°
13°
Overcast
0 mm
Tue. 22
24°
13°
Sunny
0 mm
Wed. 23
24°
13°
Sunny
0 mm
Thu. 24
20°
13°
Overcast
0 mm
Fri. 25
21°
12°
Sunny
0 mm
Sat. 26
22°
12°
Sunny
0 mm
Further Ahead
Select a date

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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
August
October
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Cloudy
20°
2
Sunny
20°
3
Sunny
22°
4
Sunny
23°
5
Sunny
22°
6
Overcast
21°
7
Cloudy
24°
8
Cloudy
24°
9
Overcast
23°
10
Overcast
21°
11
Sunny
19°
12
Sunny
20°
13
Sunny
20°
14
Sunny
24°
15
Sunny
23°
16
Sunny
23°
17
Sunny
23°
18
Sunny
22°
19
Partly cloudy
22°
20
Overcast
22°
21
Overcast
21°
22
Sunny
24°
23
Sunny
24°
24
Overcast
20°
25
Sunny
21°
26
Sunny
22°
27
Overcast
22°
28
Overcast
18°
29
Overcast
19°
30
Partly cloudy
24°
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.

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. 🌀

Frequently asked questions about the weather in San Mateo County

How warm is it in San Mateo County over the next 14 days?
Over the next two weeks, temperatures in San Mateo County are expected to range from around 12 °F on the coldest nights up to about 24 °F on the warmest days. Use this range to plan what to pack and wear.

Will it rain in San Mateo County in the next two weeks?
No significant rain is expected in San Mateo County over the next two weeks, so you can plan for mostly dry conditions.

How windy is it in San Mateo County?
Maximum wind speeds in San Mateo County are forecast to reach about 25 km/h at their peak over the next 14 days.

When is the best time to visit San Mateo County?
For a month-by-month look at temperatures and rainfall, see our best time to visit San Mateo County guide.

How accurate is the 14-day forecast for San Mateo County?
Our San Mateo County forecast uses leading meteorological models and is most reliable over the next few days. Long-range days beyond a week show general trends and can change, so check back closer to the date for updates.

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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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