Palo Alto Weather Current Conditions

Conditions now

Palo Alto, CA · every 2 seconds

Current conditions

Wind

1 mph

gusting 3 mph

Rain

No rain

in the last 24 hours

0.00 in

Today

0.00 in

24 hours

Rain Rate0.00 in/h

Last rainSep 4, 0.02 in

Rain year to date14.73 in

On their scales

Measure	Reading	Reads as
Dewpoint	56.9°F
Barometer	30.101 inHg
AQI	27	PM2.5 5 µg/m³
UV Index	1.8
Radiation	186 W/m²
CO₂	427 ppm

WeatherBoard →

Forecast

National Weather Service

This Afternoon

Mostly sunny, with a high near 74. Northwest wind around 9 mph.

7-Day and Hourly Forecast pages →

Today’s highs and lows the full ledger →

Temperature & Air

Temperature°F

72.0 57.5

Dew Point°F

57.6 52.7

Humidity%

86 59

Heat Index°F

71.7

Wind Chill°F

57.5

Barometer inHg

30.140 30.011 month high

Air Quality

AQI

42 18

PM 2.5 µg/m³

8 3

CO₂ ppm

464 370

Sun

UV Index

3.8 0.0

Radiation W/m²

396 0

Wind

Wind Max mph

5 250°

Wind Average mph

Wind RMS mph

Vector Average mph

0 291°

Rain & Evapotranspiration

Rain in

0.00

Rain Rate in/h

0.00

ET in

0.01 0.00

Forecast

National Weather Service

This Afternoon

Mostly sunny, with a high near 74. Northwest wind around 9 mph.

7-Day and Hourly Forecast pages →

Downstream systems

NWSFW4751 SynopticF4751 PurpleAirPaloAltoWeather.com APRS / CWOPF4751 UK Met OfficePaloAltoWeather.com WOW-BEPaloAltoWeather.com Windyf0634ec3 Weather UndergroundKCAPALOA156 WeatherCloudPaloAltoWeather.com AWEKAS16242 PWS WeatherPALOALTOCA

Sun & moon

Sunrise

6:52 AM

tomorrow 6:53 AM

Sunset

7:12 PM

tomorrow 7:11 PM

First quarter

41% full

rises 1:43 PM · sets 10:52 PM

full moon Sep 26 · equinox Sep 22

lunar eclipse Aug 17, 2027 · penumbral

Twilight & daylight

Twilight	Begins	Ends
Civillights off, horizon clear	6:26 AM	7:38 PM
Nauticalhorizon still visible at sea	5:55 AM	8:09 PM
Astronomicalthe last of the sky glow	5:24 AM	8:40 PM

Daylight 12 h 20 m 143 s shorter than yesterday

Solar noon 1:02 PM altitude 54.6°