Palo Alto Weather Current Conditions

Current

Today's Highs/Lows

Sun & Moon

Temperature

54.9°F

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Dewpoint

47.8°F Dry & Crisp

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Barometer

30.018 inHg Normal

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AQI

24 Good

—PM2.5

4 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	420 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
77%

Wind

0 mph

WeatherBoard

Tonight

NWS Forecast

Mostly clear, with a low around 49. Northwest wind around 3 mph.

Temperature	79.4 47.5	°F
Dew Point	59.8 44.7	°F
Barometer	30.022 29.927	inHg
AQI	41 22
PM 2.5	7 4	µg/m³
UV Index	6.8 0.0
Radiation	694 0	W/m²
CO₂	508 390	ppm
Rain	0.00	in
Rain Rate	0.00	in/h
Wind Max	11 21	mph °
Wind Average	1	mph
Wind RMS	2	mph
Vector Average Average Direction	1 27	mph °
Humidity	91 42	%
Heat Index	79.3	°F
Wind Chill	47.5	°F
ET	0.02 0.00	in

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

Downstream Systems