Palo Alto Weather Current Conditions

Current

Today's Highs/Lows

Sun & Moon

Temperature

40.8°F

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Dewpoint

38.1°F Dry/Moisture Depleted

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Barometer

30.306 inHg High

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AQI

47 Good

—PM2.5

9 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	543 ppm High (Polluted/Stagnant Air)

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Rain Today

0.01 in

Rain Rate
0.00 in/h

24 Hour Rain

0.01 in

Humidity
90%

Wind

↑

1 mph
NW
(315°)

WeatherBoard

Tonight

NWS Forecast

Patchy frost after 5am. Partly cloudy, with a low around 36. West wind around 2 mph.

Temperature	64.1 33.0	°F
Dew Point	48.6 31.2	°F
Barometer	30.428 30.287	inHg
AQI	63 26
PM 2.5	16 5	µg/m³
UV Index	3.2 0.0
Radiation	461 0	W/m²
CO₂	600 433	ppm
Rain	0.01	in
Rain Rate	0.00	in/h
Wind Max	7 344	mph °
Wind Average	1	mph
Wind RMS	1	mph
Vector Average Average Direction	0 14	mph °
Humidity	94 44	%
Heat Index	62.4	°F
Wind Chill	33.0	°F
ET	0.01 0.00	in

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

Downstream Systems