Palo Alto Weather Current Conditions

Current

Today's Highs/Lows

Sun & Moon

Temperature

39.1°F

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Dewpoint

36.1°F Dry/Moisture Depleted

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Barometer

30.284 inHg High

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AQI

25 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	482 ppm Moderately Elevated

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Rain Today

0.00 in

Rain Rate
0.00 in/h

24 Hour Rain

0.01 in

Humidity
89%

Wind

0 mph

WeatherBoard

Tonight

NWS Forecast

Mostly clear, with a low around 38. North northwest wind around 5 mph.

Temperature	39.8 39.1	°F
Dew Point	36.5 36.0	°F
Barometer	30.286 30.280	inHg
AQI	27 19
PM 2.5	5 3	µg/m³
UV Index	0.0 0.0
Radiation	0 0	W/m²
CO₂	497 464	ppm
Rain	0.00	in
Rain Rate	0.00	in/h
Wind Max	2 314	mph °
Wind Average	1	mph
Wind RMS	1	mph
Vector Average Average Direction	1 312	mph °
Humidity	89 88	%
Heat Index	39.8	°F
Wind Chill	39.1	°F
ET	0.00 0.00	in

Equinox	03/20/2026 07:45:53 AM
Solstice	06/21/2026 01:24:31 AM

Downstream Systems