Palo Alto Weather Current Conditions

Current

Today's Highs/Lows

Sun & Moon

Temperature

48.7°F

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Dewpoint

43.5°F Dry & Crisp

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Barometer

29.991 inHg Normal

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AQI

17 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	471 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
82%

Wind

0 mph

WeatherBoard

Overnight

NWS Forecast

Clear, with a low around 48. North northwest wind around 2 mph.

Temperature	56.7 48.5	°F
Dew Point	48.1 43.2	°F
Barometer	29.991 29.950	inHg
AQI	28 17
PM 2.5	5 3	µg/m³
UV Index	0.0 0.0
Radiation	0 0	W/m²
CO₂	512 452	ppm
Rain	0.00	in
Rain Rate	0.00	in/h
Wind Max	2 324	mph °
Wind Average	0	mph
Wind RMS	0	mph
Vector Average Average Direction	0 315	mph °
Humidity	82 73	%
Heat Index	55.5	°F
Wind Chill	48.5	°F
ET	0.00 0.00	in

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

Downstream Systems