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Current  
Today's Highs/Lows
Sun & Moon
Temperature 46.8°F 
Dewpoint 44.6°F Dry & Crisp
Barometer 30.034 inHg Normal
AQI 6 Good —PM2.5 1 µg/m³
UV Index 0.0 Low
Radiation 0 W/m² Dark/Nighttime
CO2 426 ppm Normal Background (Excellent)
Rain Today
0.03 in
Rain Rate
0.00 in/h
24 Hour Rain
0.13 in
Humidity
92%
Wind
N
E
S
W
0 mph
 
 
WeatherBoard View
Tonight
NWS Forecast
A slight chance of rain showers before 1am. Mostly cloudy. Low around 45, with temperatures rising to around 47 overnight. West southwest wind around 7 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Temperature 61.6
46.7
°F
Dew Point 51.8
44.4
°F
Barometer 30.036
29.868
inHg
AQI 21
2
PM 2.5 4
0
µg/m³
UV Index 2.8
0.0
Radiation 584
0
W/m²
CO2 432
397
ppm
Rain 0.03 in
Rain Rate 0.00 in/h
Wind Max 17
168
mph
°
Wind Average 2 mph
Wind RMS 3 mph
Vector Average
Average Direction
2
181
mph
°
Humidity 92
56
%
Heat Index 60.2 °F
Wind Chill 46.7 °F
ET 0.01
0.00
in
Rise 07:21:03 AM   Rise 11:24:43 AM
Transit 12:09:16 PM   Transit 05:29:44 PM
Set 04:57:34 PM   Set 11:45:08 PM
Daylight 09:36   First quarter
44% full
Azimuth 277.2°   246.3°
Altitude -49.2°   27.9°
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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