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Current  
Today's Highs/Lows
Sun & Moon
AQI 55 Moderate —PM2.5 12 µg/m³
UV Index 0.0 Low
Temperature
45.0°F
Dew Point
42.8°F
Rain Today
0.00 in
Rain Rate
0.00 in/h
Wind
1 mph
S
(180°)
Humidity
92%
Heat Index
43.5°F
Wind Chill
45.0°F
24 Hour Rain
 
Radiation
0 W/m²
ET
0.00 in
Barometer
30.015 inHg

WeatherBoard View
Tonight
NWS Forecast
A slight chance of rain after 4am. Partly cloudy, with a low around 48. South wind around 2 mph. Chance of precipitation is 20%.
AQI 63
18
PM 2.5 16
3
µg/m³
UV Index 3.2
0.0
Temperature 61.6
39.8
°F
Rain 0.00 in
Rain Rate 0.00 in/h
Wind Max 7
115
mph
°
Wind Average 1 mph
Wind RMS 1 mph
Vector Average
Average Direction
0
49
mph
°
Radiation 446
0
W/m²
Barometer 30.241
30.014
inHg
Dew Point 48.9
37.7
°F
Humidity 93
57
%
Heat Index 60.2 °F
Wind Chill 37.4 °F
ET 0.01
0.00
in
Rise 07:22:41 AM   Rise 09:43:20 AM
Transit 12:12:44 PM   Transit 02:53:09 PM
Set 05:02:57 PM   Set 08:11:10 PM
Daylight 09:40   Waxing crescent
13% full
Azimuth 344.0°   283.0°
Altitude -74.9°   -42.3°
Equinox 03/20/2025 02:01:14 AM
Solstice 06/20/2025 07:42:18 PM
Downstream Systems
NWS FW4751
MesoWest F4751
PurpleAir PaloAltoWeather.com
APRS/CWOP F4751
UK Met Office PaloAltoWeather.com
Windy f0634ec3
Weather Under. KCAPALOA156
WeatherCloud PaloAltoWeather.com
AWEKAS 16242
PWS PALOALTOCA

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