Palo Alto Weather Current Conditions

Current

Today's Highs/Lows

Sun & Moon

Temperature

44.5°F

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Dewpoint

39.0°F Dry & Crisp

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Barometer

30.256 inHg High

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AQI

39 Good

—PM2.5

7 µg/m³

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UV Index

1.2 Low

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Radiation

109 W/m² Low

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CO₂	418 ppm Normal Background (Excellent)

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Rain Today

0.00 in

Rain Rate
0.00 in/h

24 Hour Rain

0.00 in

Humidity
81%

Wind

↑

2 mph
NNE
(22°)

WeatherBoard

Tuesday

NWS Forecast

Mostly cloudy. High near 59, with temperatures falling to around 56 in the afternoon. North wind around 5 mph.

Temperature	44.6 32.9	°F
Dew Point	39.5 30.6	°F
Barometer	30.256 30.175	inHg
AQI	48 8
PM 2.5	9 1	µg/m³
UV Index	1.4 0.0
Radiation	297 0	W/m²
CO₂	598 399	ppm
Rain	0.00	in
Rain Rate	0.00	in/h
Wind Max	6 70	mph °
Wind Average	1	mph
Wind RMS	1	mph
Vector Average Average Direction	0 315	mph °
Humidity	92 81	%
Heat Index	42.6	°F
Wind Chill	32.9	°F
ET	0.00 0.00	in

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

Downstream Systems