Palo Alto Weather Current Conditions

Current

Today's Highs/Lows

Sun & Moon

Temperature

47.5°F

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Dewpoint

42.0°F Dry & Crisp

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Barometer

29.995 inHg Normal

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AQI

16 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	415 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

0 mph

WeatherBoard

Overnight

NWS Forecast

Partly cloudy, with a low around 45. Southwest wind around 3 mph.

Temperature	52.7 47.5	°F
Dew Point	44.0 41.9	°F
Barometer	30.002 29.975	inHg
AQI	22 16
PM 2.5	4 3	µg/m³
UV Index	0.0 0.0
Radiation	0 0	W/m²
CO₂	433 390	ppm
Rain	0.00	in
Rain Rate	0.00	in/h
Wind Max	5 288	mph °
Wind Average	0	mph
Wind RMS	1	mph
Vector Average Average Direction	0 241	mph °
Humidity	82 71	%
Heat Index	51.0	°F
Wind Chill	47.5	°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