Palo Alto Weather Current Conditions

Current

Today's Highs/Lows

Sun & Moon

Temperature

75.5°F

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Dewpoint

43.6°F Extremely Comfortable

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Barometer

29.964 inHg Normal

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AQI

28 Good

—PM2.5

5 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	455 ppm Moderately Elevated

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Rain Today

0.00 in

Rain Rate
0.00 in/h

24 Hour Rain

0.00 in

Humidity
32%

Wind

0 mph

WeatherBoard

Tonight

NWS Forecast

Mostly clear, with a low around 55. Northwest wind 1 to 9 mph.

Temperature	89.6 49.1	°F
Dew Point	53.3 34.0	°F
Barometer	30.037 29.941	inHg
AQI	36 17
PM 2.5	6 3	µg/m³
UV Index	8.6 0.0
Radiation	844 0	W/m²
CO₂	505 384	ppm
Rain	0.00	in
Rain Rate	0.00	in/h
Wind Max	12 39	mph °
Wind Average	1	mph
Wind RMS	2	mph
Vector Average Average Direction	1 24	mph °
Humidity	74 17	%
Heat Index	86.0	°F
Wind Chill	49.1	°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