Palo Alto Weather Current Conditions

Current

Today's Highs/Lows

Sun & Moon

Temperature

44.1°F

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Dewpoint

41.4°F Dry & Crisp

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Barometer

30.147 inHg High

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AQI

64 Moderate

—PM2.5

17 µg/m³

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UV Index

0.0 Low

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Radiation

0 W/m² Dark/Nighttime

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CO₂	463 ppm Moderately Elevated

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Rain Today

0.00 in

Rain Rate
0.00 in/h

24 Hour Rain

0.00 in

Humidity
90%

Wind

0 mph

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Tonight

NWS Forecast

A chance of rain after 10pm. Mostly cloudy. Low around 46, with temperatures rising to around 48 overnight. West northwest wind around 3 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

Temperature	51.5 32.9	°F
Dew Point	44.2 30.6	°F
Barometer	30.256 30.139	inHg
AQI	75 8
PM 2.5	22 1	µg/m³
UV Index	2.0 0.0
Radiation	341 0	W/m²
CO₂	598 399	ppm
Rain	0.00	in
Rain Rate	0.00	in/h
Wind Max	11 37	mph °
Wind Average	1	mph
Wind RMS	2	mph
Vector Average Average Direction	1 30	mph °
Humidity	92 69	%
Heat Index	49.7	°F
Wind Chill	32.9	°F
ET	0.01 0.00	in

☀		☽
Rise	07:22:08 AM	Rise	01:22:52 PM
Transit	12:11:13 PM	Transit	08:53:45 PM
Set	05:00:24 PM	Set	03:18:01 AM
Daylight	09:38		Waxing gibbous 86% full
Azimuth	283.0°		218.1°
Altitude	-54.6°		73.1°

Equinox	03/20/2026 07:45:53 AM
Solstice	06/21/2026 01:24:31 AM

Downstream Systems

NWS	FW4751
MesoWest	F4751
PurpleAir	PaloAltoWeather.com
APRS/CWOP	F4751
UK Met Office	PaloAltoWeather.com
WOW-BE	PaloAltoWeather.com
Windy	f0634ec3
Weather Under.	KCAPALOA156
WeatherCloud	PaloAltoWeather.com
AWEKAS	16242
PWS	PALOALTOCA