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100+ F in Phoenix as record-shattering March scorcher intensifies. See how hot it will get. Chevron right

San Mateo, CA

65°F
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San Mateo, CA Weather
Today WinterCast Local {stormName} Tracker Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities

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Winter Center
Today Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities
Wednesday, March 18

Current Weather

12:22 AM

65°F
Mostly clear
RealFeel® 64°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
RealFeel®
64°
Wind
NNW 1 mph
Wind Gusts
2 mph
Humidity
64%
Indoor Humidity
58% (Ideal Humidity)
Dew Point
53° F
Pressure
↑ 30.02 in
Cloud Cover
18%
Visibility
12 mi
Cloud Ceiling
40000 ft

Day

3/18
85°Hi
RealFeel® 87°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
RealFeel Shade™ 82°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
Mostly sunny and very warm
alerts

Heat Advisory

10:00 AM Monday - 8:00 PM Friday

Max UV Index5.0 (Moderate)

AccuLumen Brightness Index™9 (Very Bright)

WindN 7 mph

Wind Gusts18 mph

Probability of Precipitation0%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover23%

Morning

Afternoon

Night

3/18
55°Lo
RealFeel® 54°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
Clear
alerts

Heat Advisory

10:00 AM Monday - 8:00 PM Friday

WindN 5 mph

Wind Gusts14 mph

Probability of Precipitation1%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover1%

Evening

Overnight

Sun & Moon

12 hrs 03 mins
Rise 7:16 AM
Set 7:19 PM
New Moon
Rise 7:00 AM
Set 7:19 PM

Temperature History

3/18
High
Low
Forecast
85°
55°
Average
64°
45°
Last Year
59°
44°

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World North America United States California San Mateo

Weather Near San Mateo:

  • Oakland, CA
  • San Francisco, CA
  • San Jose, CA
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