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WeatherLive › California › San Mateo

San Mateo, CA Weather (94401)

ZIP codes: 94401 · 94402
Today Hourly 10-Day Weekend Monthly Radar Air Quality Climate
Current WeatherSan Mateo · 7:05 PM PDT
29° | 13°
22°C
Feels like 22°
Sunny
WindW 6 mph · Gusts 7 mph
Precip12% · –
Humidity63% · Dew point 15°
UV index9 Very high
Air Quality47 Good
Pressure29.91 inHg
Visibility6 mi
Sunrise / Sunset6:28 AM · 7:57 PM · 13h 29m

Weather map — San Mateo

Full radar →
Now
22°
4%
6 mph
20:00
18°
7%
6 mph
21:00
16°
9%
5 mph
22:00
15°
12%
4 mph
23:00
14°
14%
4 mph
00:00
14°
13%
4 mph
01:00
13°
13%
4 mph
02:00
13°
12%
4 mph
03:00
13°
13%
4 mph
04:00
13°
16%
4 mph
05:00
13°
31%
4 mph
06:00
13°
30%
4 mph
07:00
13°
29%
4 mph
08:00
15°
24%
4 mph
09:00
18°
18%
4 mph
10:00
20°
14%
5 mph
11:00
22°
12%
6 mph
12:00
23°
11%
6 mph
13:00
24°
11%
7 mph
14:00
25°
10%
8 mph
15:00
25°
10%
9 mph
16:00
24°
10%
8 mph
17:00
23°
11%
8 mph
18:00
21°
13%
7 mph

Today · Wed 8/19

High 29°
12% / –

Sunny. Winds NW at 9 mph.

Tonight · Wed 8/19

Low 13°
9% / –

Sunny. Winds W at 5 mph.

Tomorrow · Thu 8/20

25° | 13°
15% / –

Mostly cloudy. Winds NW at 9 mph.

7-day trend

San Mateo · temperature + precipitation

10-day forecast

Updated 7:05 PM

Details & indices

Wind
6 mph W
Gusts 7 mph
Humidity
63%
Dew point 15°
Pressure
29.91 inHg
Rising
UV index
9 — Very high
High today
Air Quality
Good
AQI 47 · US EPA
Allergy
Very high
Mugwort
Visibility
6 mi
Clear view
Allergy — San Mateo

🌿 Conditions right now

View all →
Birch
None
Grass
Moderate
Oak
None
Alder
None
Hazel
None
Mugwort
High
Ragweed
Low

Sun & moon

Sunrise6:28 AM
Sunset7:57 PM
Length of day13h 29m
Moonrise1:58 PM
Moonset11:31 PM
Moon phase🌓 First Quarter · 50%
Next full moonAug 27 Sturgeon Moon
Latitude37.5630°N
Longitude-122.3255°E

Water temps nearby

View all →
Stinson Beach (29 mi)60°
Santa Cruz Main Beach (45 mi)63°
🌤️No rain expected in the next 90 minutes
Now+30+60+90 min
Minute-by-minute precip · HRRR nowcast

Daily planner

computed from today's forecast
Laundry day
Great
Line-drying weather
Grilling
Great
Fire up the grill
Running
Fair
Lace up outside
Patio
Great
Dinner outdoors
Nearby places in {{REGION}}
🌤️
Los Angeles
—
— 🌤️
San Diego
—
— 🌤️
San Jose
—
— 🌤️
San Francisco
—
— 🌤️
Fresno
—
— 🌤️
Sacramento
—
—
Data sources · Wednesday, August 19
Where the San Mateo forecast comes from
This page blends NOAA/NWS model guidance with global ensembles for the 10-day outlook, air quality and alerts. Data refreshes every hour, current conditions every 15 minutes. Coordinates: 37.5630°N, -122.3255°.
NBM + global weather models
Updated: 7:05 PM
ZIP codes in San Mateo
📮
94401
San Mateo
 📮
94402
San Mateo
 📮
94403
San Mateo
 📮
94404
Foster City
 📮
94497
Highlands-Baywood Park
Weather in San Mateo
Over the next 10 days San Mateo tops out around 29° (Wednesday) and dips to 12° on the coolest night (Thursday). Rain totals look negligible: a dry run of days ahead. Heads up: a Small Craft Advisory is in effect — check the alerts tab before making plans. Right now San Mateo is running about 57° warmer than Salinas. Longer view: Mediterranean pattern — nearly all rain lands November through March.
San Mateo, CA · Elev 43 ft · 37.56°N, 122.33°W · California · Forecast computed for these exact coordinates
Powered by NWS/NOAA guidance, multi-model forecasts and official environmental feeds · NOAA/NWS · EPA AirNow · MET Norway · global models
Updated: 7:05 PM