Palo Alto Weather Current Conditions

Current

Today's Highs/Lows

Sun & Moon

Temperature

46.5°F

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Dewpoint

45.1°F Dry & Crisp

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Barometer

30.060 inHg Normal

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AQI

18 Good

—PM2.5

3 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	541 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
95%

Wind

0 mph

WeatherBoard

Overnight

NWS Forecast

Patchy fog. Mostly cloudy, with a low around 48. West wind around 2 mph.

Temperature	46.5 44.6	°F
Dew Point	45.4 43.3	°F
Barometer	30.074 30.060	inHg
AQI	26 17
PM 2.5	5 3	µg/m³
UV Index	0.0 0.0
Radiation	0 0	W/m²
CO₂	565 530	ppm
Rain	0.00	in
Rain Rate	0.00	in/h
Wind Max	2 321	mph °
Wind Average	0	mph
Wind RMS	0	mph
Vector Average Average Direction	0 315	mph °
Humidity	96 95	%
Heat Index	45.4	°F
Wind Chill	44.6	°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