Palo Alto Weather Current Conditions

Current

Today's Highs/Lows

Sun & Moon

Temperature

58.0°F

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Dewpoint

40.5°F Crisp & Invigorating

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Barometer

30.073 inHg Normal

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AQI

20 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	408 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
52%

Wind

0 mph

WeatherBoard

Tonight

NWS Forecast

Mostly clear. Low around 46, with temperatures rising to around 48 overnight. West wind 2 to 7 mph.

Temperature	79.5 46.1	°F
Dew Point	59.9 38.8	°F
Barometer	30.104 30.020	inHg
AQI	23 12
PM 2.5	4 2	µg/m³
UV Index	7.4 0.0
Radiation	728 0	W/m²
CO₂	492 398	ppm
Rain	0.00	in
Rain Rate	0.00	in/h
Wind Max	15 4	mph °
Wind Average	2	mph
Wind RMS	2	mph
Vector Average Average Direction	1 355	mph °
Humidity	77 48	%
Heat Index	79.5	°F
Wind Chill	46.1	°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