Palo Alto Weather Current Conditions

Current

Today's Highs/Lows

Sun & Moon

Temperature

66.8°F

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Dewpoint

47.0°F Extremely Comfortable

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Barometer

29.972 inHg Normal

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AQI

34 Good

—PM2.5

6 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	437 ppm Slightly Elevated (Typical Urban)

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Rain Today

0.00 in

Rain Rate
0.00 in/h

24 Hour Rain

0.00 in

Humidity
49%

Wind

0 mph

WeatherBoard

Tonight

NWS Forecast

Mostly clear. Low around 51, with temperatures rising to around 53 overnight. West northwest wind around 10 mph, with gusts as high as 22 mph.

Temperature	80.0 48.2	°F
Dew Point	58.1 44.1	°F
Barometer	30.033 29.959	inHg
AQI	38 11
PM 2.5	7 2	µg/m³
UV Index	8.7 0.0
Radiation	842 0	W/m²
CO₂	468 414	ppm
Rain	0.00	in
Rain Rate	0.00	in/h
Wind Max	12 46	mph °
Wind Average	1	mph
Wind RMS	2	mph
Vector Average Average Direction	1 17	mph °
Humidity	91 34	%
Heat Index	79.6	°F
Wind Chill	48.2	°F
ET	0.03 0.00	in

Solstice	06/21/2026 01:24:31 AM
Equinox	09/22/2026 05:05:09 PM

Downstream Systems