Palo Alto Weather Current Conditions

Current

Today's Highs/Lows

Sun & Moon

Temperature

38.6°F

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Dewpoint

37.0°F Dry/Moisture Depleted

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Barometer

30.080 inHg Normal

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AQI

42 Good

—PM2.5

8 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	529 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
94%

Wind

0 mph

WeatherBoard

Overnight

NWS Forecast

Partly cloudy, with a low around 43. West wind around 2 mph.

Temperature	43.2 38.5	°F
Dew Point	41.0 36.8	°F
Barometer	30.115 30.068	inHg
AQI	66 38
PM 2.5	17 7	µg/m³
UV Index	0.0 0.0
Radiation	0 0	W/m²
CO₂	579 521	ppm
Rain	0.00	in
Rain Rate	0.00	in/h
Wind Max	2 269	mph °
Wind Average	0	mph
Wind RMS	0	mph
Vector Average Average Direction	0 273	mph °
Humidity	94 92	%
Heat Index	41.5	°F
Wind Chill	38.5	°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