Palo Alto Weather Current Conditions

Current

Today's Highs/Lows

Sun & Moon

Temperature

55.8°F

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Dewpoint

39.4°F Crisp & Invigorating

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Barometer

30.245 inHg High

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AQI

20 Good

—PM2.5

4 µg/m³

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UV Index

0.0 Low

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Radiation

19 W/m² Dark/Nighttime

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CO₂	422 ppm Normal Background (Excellent)

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Rain Today

0.01 in

Rain Rate
0.00 in/h

24 Hour Rain

0.01 in

Humidity
54%

Wind

↑

2 mph
NNE
(22°)

WeatherBoard

This Afternoon

NWS Forecast

Sunny. High near 56, with temperatures falling to around 53 in the afternoon. North northwest wind around 6 mph.

Temperature	59.1 35.9	°F
Dew Point	44.5 34.6	°F
Barometer	30.353 30.239	inHg
AQI	26 4
PM 2.5	5 1	µg/m³
UV Index	2.7 0.0
Radiation	422 0	W/m²
CO₂	523 396	ppm
Rain	0.01	in
Rain Rate	0.00	in/h
Wind Max	8 30	mph °
Wind Average	1	mph
Wind RMS	2	mph
Vector Average Average Direction	1 28	mph °
Humidity	95 44	%
Heat Index	57.0	°F
Wind Chill	35.9	°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