Palo Alto Weather Current Conditions

Weather • Air Quality • Seismic Activity

PaloAltoWeather.com

Current

Today's Highs/Lows

Sun & Moon

AQI

38 Good

—PM2.5

7 µg/m³

▲

UV Index

0.8 Low

▲

Temperature
66.4°F

Dew Point
48.2°F

Rain Today
0.00 in

Rain Rate
0.00 in/h

Wind
4 mph
NE
(45°)

Humidity
52%

Heat Index
65.2°F

Wind Chill
66.4°F

24 Hour Rain

Radiation
172 W/m²

ET
0.01 in

Barometer
29.950 inHg

WeatherBoard

Tonight

NWS Forecast

Mostly clear, with a low around 52. Northwest wind 2 to 10 mph.

AQI	49 13
PM 2.5	9 2	µg/m³
UV Index	8.4 0.0
Temperature	78.5 50.5	°F
Rain	0.00	in
Rain Rate	0.00	in/h
Wind Max	16 8	mph °
Wind Average	3	mph
Wind RMS	3	mph
Vector Average Average Direction	1 2	mph °
Radiation	826 0	W/m²
Barometer	30.028 29.941	inHg
Dew Point	54.0 45.1	°F
Humidity	83 35	%
Heat Index	77.9	°F
Wind Chill	50.5	°F
ET	0.03 0.00	in

Equinox	09/22/2025 11:19:17 AM
Solstice	12/21/2025 07:02:51 AM

Downstream Systems