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Current  
Today's Highs/Lows
Sun & Moon
Temperature 40.6°F 
▲
Dewpoint 37.3°F Dry/Moisture Depleted
▲
Barometer 30.238 inHg High
▲
AQI 23 Good —PM2.5 4 µg/m³
▲
UV Index 0.7 Low
▲
Radiation 159 W/m² Low
▲
CO2 577 ppm High (Polluted/Stagnant Air)
▲
Rain Today
0.00 in
Rain Rate
0.00 in/h
24 Hour Rain
0.00 in
Humidity
88%
Wind
N
E
S
W
↑
1 mph
NW
(315°)
WeatherBoard View
Tuesday
NWS Forecast
Mostly cloudy. High near 59, with temperatures falling to around 56 in the afternoon. North wind around 5 mph.
Temperature 40.6
32.9 		°F
Dew Point 37.3
30.6 		°F
Barometer 30.243
30.175 		inHg
AQI 40
8
PM 2.5 7
1 		µg/m³
UV Index 0.7
0.0
Radiation 169
0 		W/m²
CO2 598
491 		ppm
Rain 0.00 in
Rain Rate 0.00 in/h
Wind Max 2
15 		mph
°
Wind Average 1 mph
Wind RMS 1 mph
Vector Average
Average Direction 		0
281 		mph
°
Humidity 92
86 		%
Heat Index 40.0 °F
Wind Chill 32.9 °F
ET 0.00
0.00 		in
☀☽
Rise 07:22:06 AM   Rise 01:22:50 PM
Transit 12:11:13 PM   Transit 08:53:45 PM
Set 05:00:27 PM   Set 03:18:04 AM
Daylight 09:38   Waxing gibbous
81% full
Azimuth 137.2°   11.9°
Altitude 16.0°   -31.0°
Equinox 03/20/2026 07:45:53 AM
Solstice 06/21/2026 01:24:31 AM
Downstream Systems
NWS FW4751
MesoWest F4751
PurpleAir PaloAltoWeather.com
APRS/CWOP F4751
UK Met Office PaloAltoWeather.com
WOW-BE PaloAltoWeather.com
Windy f0634ec3
Weather Under. KCAPALOA156
WeatherCloud PaloAltoWeather.com
AWEKAS 16242
PWS PALOALTOCA

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