Palo Alto Weather Current Conditions

Current

Today's Highs/Lows

Sun & Moon

Temperature

54.7°F

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Dewpoint

48.0°F Dry & Crisp

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Barometer

30.171 inHg High

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AQI

12 Good

—PM2.5

2 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	418 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
78%

Wind

0 mph

WeatherBoard

Tonight

NWS Forecast

Patchy fog after 1am. Mostly clear. Low around 45, with temperatures rising to around 47 overnight. West southwest wind 2 to 6 mph.

Temperature	64.8 46.9	°F
Dew Point	51.4 44.8	°F
Barometer	30.253 30.160	inHg
AQI	26 6
PM 2.5	5 1	µg/m³
UV Index	4.1 0.0
Radiation	541 0	W/m²
CO₂	503 401	ppm
Rain	0.00	in
Rain Rate	0.00	in/h
Wind Max	12 353	mph °
Wind Average	2	mph
Wind RMS	2	mph
Vector Average Average Direction	1 25	mph °
Humidity	94 54	%
Heat Index	63.7	°F
Wind Chill	46.9	°F
ET	0.01 0.00	in

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

Downstream Systems