Weather & Air History

PaloAltoWeather.com

Weather, Air Quality & Seismic Activity

Graphs past week

last 7 days

Pick a measureMon 2 AM

Air qualityAQI against the EPA categories

11 Good
GoodModerate0204060MonWedFriSun

High 44 Sat 12 PMLow 9 Sun 11 PM

Air quality indexEPA categories

The week at a glancelast 7 days · night shaded

TEMPERATURE & DEW POINT °F40.050.060.070.080.090.0high 84.1°F Mon 3 PMlow 51.1°F Mon 6 AMHUMIDITY050100WIND mph & DIRECTION051015RAIN in0.000.10dryBAROMETER inHg29.80030.00030.200SOLAR W/m² (pale = clear-sky maximum)05001000AIR QUALITY INDEX050100CARBON DIOXIDE ppm350400450500MonTueWedThuFriSatSun

High 84.1°F Mon 3 PMLow 51.1°F Mon 6 AM

TemperatureDew pointNight

Drag across the frame to read every panel at the same moment. A panel’s label jumps to that measure at full size.

Humiditywith dew point

82%
40.050.060.070.0dew °F255075100MonTueWedThuFriSatSun

High 93% Tue 8 AMLow 28% Mon 5 PM

HumidityDew point, right scale

Windspeed and gusts; arrows fly the way the wind is blowing

0 mph NW
051015MonTueWedThuFriSatSun

Peak gust 15 mph Wed 3 PMNow from NW

WindGustArrows fly with the wind

Raindaily totals

0.00 in
0.000.050.10no rain in the last 7 daysMonTueWedThuFriSatSun

Total 0.00 in

Barometerlast 7 days

29.947 inHg
29.80030.00030.200MonTueWedThuFriSatSun

High 30.160 inHg Fri 9 AMLow 29.826 inHg Mon 5 PM

Sunmeasured against the clear-sky maximum, in pale

0 W/m²
0.02.55.07.5UV05001000MonTueWedThuFriSatSun

Peak 739 W/m² Sun 12 PMPeak UV 7.1 Mon 12 PMOf clear sky 74%

MeasuredClear-sky maximumUV, right scale

Air qualityAQI against the EPA categories

11 Good
GoodModerate0204060MonTueWedThuFriSatSun

High 44 Sat 12 PMLow 9 Sun 11 PM

Air quality indexEPA categories

Carbon dioxidelast 7 days

408 ppm
375400425450475MonTueWedThuFriSatSun

High 459 ppm Fri 4 AMLow 388 ppm Wed 2 AM

Carbon dioxideOutdoor background, 425 ppm

Stationsignal and console battery

99%
0%50%100%3.84.04.2MonTueWedThuFriSatSun

Signal now 99%Battery 3.9 V

SignalBattery, right scale

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