Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
100+ F in Phoenix as record-shattering March scorcher intensifies. See how hot it will get. Chevron right

Foster City, CA

70°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Foster City

California

70°
No results found.
Try searching for a city, zip code or point of interest.
Create Your Account Unlock extended daily and hourly forecasts — all with your free account.
Let's Go Chevron right
Have an account already? Log In
settings
Help
Foster City, CA Weather
Today WinterCast Local {stormName} Tracker Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps
News

News & Features

Astronomy

Business

Climate

Health

Recreation

Sports

Travel
For Business

Warnings

Data Suite

Forensics

Advertising

Superior Accuracy™

Video

Winter Center
Today Hourly Daily Radar MinuteCast® Monthly Air Quality Health & Activities
Tuesday, March 17

Current Weather

12:54 PM

70°F
Sunny
RealFeel® 76°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
RealFeel Shade™ 68°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
RealFeel®
76°
RealFeel Shade™
68°
Max UV Index
5.2 (Moderate)
Wind
NE 6 mph
Wind Gusts
6 mph
Humidity
72%
Indoor Humidity
72% (Slightly Humid)
Dew Point
61° F
Pressure
↓ 30.04 in
Cloud Cover
0%
Visibility
10 mi
Cloud Ceiling
40000 ft

Day

3/17
86°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™ 84°
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
Very warm with plenty of sun; the length of this stretch of heat will bring an increased risk of heat-related illnesses
alerts

Heat Advisory

10:00 AM Monday - 8:00 PM Friday

Max UV Index5.0 (Moderate)

AccuLumen Brightness Index™9 (Very Bright)

WindN 5 mph

Wind Gusts12 mph

Probability of Precipitation0%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover7%

Morning

Afternoon

Night

3/17
55°Lo
RealFeel® 55°
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 Gusts8 mph

Probability of Precipitation0%

Probability of Thunderstorms0%

Precipitation0.00 in

Cloud Cover6%

Evening

Overnight

Sun & Moon

12 hrs 01 mins
Rise 7:17 AM
Set 7:18 PM
Waning Crescent
Rise 6:35 AM
Set 6:10 PM

Temperature History

3/17
High
Low
Forecast
86°
55°
Average
64°
45°
Last Year
57°
49°

Further Ahead

Hourly

Daily

Monthly

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Winter Weather

Snow squalls to create highway dangers in Upper Midwest, Northeast

6 hours ago

Weather Forecasts

Record-shattering March scorcher: 70 million to bake in heat dome

3 hours ago

Winter Weather

Blizzard snarls travel; Midwest city sees biggest snow day since 1889

5 hours ago

Weather Forecasts

Pineapple express to bring flooding in Washington, British Columbia

2 hours ago

Astronomy

See it: Bright daytime meteor triggers sonic boom over Cleveland

4 hours ago

 More Stories

Featured Stories

Astronomy

Exoplanet discovery reveals ‘sulfur world’ that smells like rotten egg...

1 hour ago

Health

Two dead, 11 others infected in meningitis outbreak linked to universi...

2 hours ago

Weather News

Watch the rescue: Coast Guard saves snowmobiler stranded on ice

1 hour ago

Astronomy

Moon project delays among barrage of challenges for NASA

4 days ago

Severe Weather

Why nighttime tornadoes are 2.5 times more deadly

1 week ago
World North America United States California Foster City

Weather Near Foster City:

  • Oakland, CA
  • San Francisco, CA
  • San Jose, CA
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
© 2026 AccuWeather, Inc. "AccuWeather" and sun design are registered trademarks of AccuWeather, Inc. All Rights Reserved.
Terms of Use | Privacy Policy | Cookie Policy | About Your Privacy Do Not Sell or Share My Personal Information | Data Sources

...

...

...