Palo Alto Weather Current Conditions

Current

Today's Highs/Lows

Sun & Moon

Temperature

74.5°F

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Dewpoint

52.9°F Dry and Very Comfortable

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Barometer

29.899 inHg Normal

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AQI

51 Moderate

—PM2.5

9 µg/m³

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UV Index

2.3 Low

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Radiation

251 W/m² Low

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CO₂	448 ppm Slightly Elevated (Typical Urban)

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Rain Today

0.00 in

Rain Rate
0.00 in/h

24 Hour Rain

0.00 in

Humidity
47%

Wind

↑

2 mph
NNW
(338°)

WeatherBoard

This Afternoon

NWS Forecast

Mostly cloudy. High near 78, with temperatures falling to around 75 in the afternoon. North northwest wind around 6 mph.

Temperature	79.5 52.5	°F
Dew Point	57.8 45.6	°F
Barometer	29.944 29.873	inHg
AQI	55 35
PM 2.5	11 6	µg/m³
UV Index	4.5 0.0
Radiation	585 0	W/m²
CO₂	547 445	ppm
Rain	0.00	in
Rain Rate	0.00	in/h
Wind Max	8 54	mph °
Wind Average	1	mph
Wind RMS	1	mph
Vector Average Average Direction	0 25	mph °
Humidity	78 39	%
Heat Index	79.2	°F
Wind Chill	52.5	°F
ET	0.01 0.00	in

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

Downstream Systems