Palo Alto Weather Current Conditions

Current

Today's Highs/Lows

Sun & Moon

Temperature

56.4°F

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Dewpoint

47.5°F Pleasantly Mild & Balanced

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Barometer

30.059 inHg Normal

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AQI

52 Moderate

—PM2.5

10 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	513 ppm High (Polluted/Stagnant Air)

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Rain Today

0.00 in

Rain Rate
0.00 in/h

24 Hour Rain

0.00 in

Humidity
72%

Wind

0 mph

WeatherBoard

Tonight

NWS Forecast

Patchy fog after midnight. Mostly clear, with a low around 42. North northwest wind around 2 mph.

Temperature	72.6 37.3	°F
Dew Point	50.0 35.5	°F
Barometer	30.120 30.032	inHg
AQI	70 27
PM 2.5	19 5	µg/m³
UV Index	3.4 0.0
Radiation	455 0	W/m²
CO₂	631 449	ppm
Rain	0.00	in
Rain Rate	0.00	in/h
Wind Max	8 42	mph °
Wind Average	1	mph
Wind RMS	1	mph
Vector Average Average Direction	0 41	mph °
Humidity	93 40	%
Heat Index	71.5	°F
Wind Chill	37.3	°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