How does NOAA issue severe storm watches for San Mateo?

The National Weather Service (NWS) monitors atmospheric instability across California. When convective storms, tornado potential, or flash floods are detected, automated NOAA advisories are immediately broadcasted.

What are the best outdoor weather hours in San Mateo today?

Check the 24-hour hourly trend chart above to identify windows of minimal rain probability, low UV index periods, and mild temperatures.

CA, USAZIP 94401Live NOAA Station

San Mateo, CA

Q: What is the current temperature and forecast in San Mateo, California?

The current weather in San Mateo is around 61°F. Forecast models from NOAA and high-resolution satellite imagery provide 10-day trends and real-time precipitation radars updated every 15 minutes.

Partly cloudy•体感温度 61°F

69°F/53°F

4 mph 233°

84%湿度

61°F

National Weather Service High-Resolution Rapid Refresh (HRRR)

更新时间: 03:00 AM (America/Los_Angeles)

Daily Meteorological Briefing

San Mateo, CA

Synthesized forecast and practical day-planning insights

NOAA HRRR Stream

Expect mild and stable weather across San Mateo, CA today.

Current temperature is 61°F (feels like 61°F), with daytime highs reaching 69°F and overnight lows around 53°F. Humidity is at 84%, with atmospheric pressure steady at 1015.3 hPa.

Overall excellent conditions for commuting and outdoor routines.

Daily Range

Δ 9° Variation

Rain Likelihood

Low (< 10%)

Solar Exposure

UV 3.5 • Moderate

24-Hour Temperature & Rain Outlook

Hourly temperature progression and precipitation probability

Temp (°F) Rain (%)

逐小时预报

Next 16 Hours

Now

57°F

1 AM

57°F

2 AM

57°F

3 AM

56°F

4 AM

54°F

5 AM

54°F

6 AM

53°F

7 AM

55°F

8 AM

58°F

9 AM

59°F

10 AM

61°F

11 AM

63°F

12 PM

67°F

1 PM

69°F

2 PM

69°F

3 PM

69°F

10天天气预报

Extended 10-day meteorological outlook

10-Day Range

Today

Sep 22

53°F

69°F

Wed

Sep 23

53°F

85°F

Thu

Sep 24

60°F

83°F

Fri

Sep 25

59°F

73°F

Sat

Sep 26

56°F

68°F

Sun

Sep 27

57°F

69°F

Mon

Sep 28

58°F

74°F

Tue

Sep 29

58°F

79°F

Wed

Sep 30

59°F

76°F

Thu

Oct 1

60°F

71°F

Weather Details & Observations

Real-time atmospheric measurements and environmental indicators

Live Feed

紫外线指数Moderate

3.5 / 11+

Sunscreen advisedPeak 6.4

风向与风速233°

4 mph

Wind Gusts:6 mph

Conditions:Gentle breeze

Sun CycleDaylight

Sunrise06:57 AM

Sunset07:06 PM

Solar Noon:12:54 PM

湿度Humid

84%

露点:56°F

气压Steady

29.98 inHg

Trend:Stable (+0.1 hPa)

能见度Clear

9.5 mi

Haze:Minimal

Air Quality Index (AQI)Good

44US EPA Standard

Air quality is ideal for outdoor activities.

PM2.56 µg

OZONE53 µg

PM108 µg

Daily Lifestyle & Activity Index

Practical recommendations tailored to current local conditions

Outdoor SportsGood

Pleasant conditions for light outdoor activities.

Car WashRecommended

Dry conditions will keep your vehicle clean.

Pollen & AllergyLow Risk

Pollen counts remain in the comfortable range.

Driving SafetyOptimal

Dry pavement and clear visibility throughout.

Sun & Moon • Celestial Dynamics

Solar orbital arc trajectory and lunar cycle visibility

Astronomy Telemetry

Solar Day TrackDaylight Arc

Sunrise11:57 PM

Daylight ~13h

Sunset12:06 PM

Lunar Phase & StargazingNight Sky

Waxing Gibbous

80% Illumination

Stargazing condition: Optimal Visibility

Next Full Moon in ~5 daysTidal Currents Normal

常见天气问答 - San Mateo, California

The current weather in San Mateo is around 61°F. Forecast models from NOAA and high-resolution satellite imagery provide 10-day trends and real-time precipitation radars updated every 15 minutes.

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