Palo Alto Weather Current Conditions

Current

Today's Highs/Lows

Sun & Moon

Temperature

52.4°F

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Dewpoint

49.8°F Dry & Crisp

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Barometer

29.903 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	468 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
91%

Wind

0 mph

WeatherBoard

Tonight

NWS Forecast

Patchy fog after 3am. Mostly clear. Low around 48, with temperatures rising to around 50 overnight. North northwest wind around 5 mph.

Temperature	56.3 52.4	°F
Dew Point	53.4 49.8	°F
Barometer	29.920 29.901	inHg
AQI	22 14
PM 2.5	4 3	µg/m³
UV Index	0.0 0.0
Radiation	0 0	W/m²
CO₂	471 399	ppm
Rain	0.00	in
Rain Rate	0.00	in/h
Wind Max	2 340	mph °
Wind Average	0	mph
Wind RMS	0	mph
Vector Average Average Direction	0 180	mph °
Humidity	91 89	%
Heat Index	55.9	°F
Wind Chill	52.4	°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