Altadena (AL-tə-DEE-nə) is an unincorporated area and census-designated place in the San Gabriel Valley and the Verdugos regions of Los Angeles County, California. Directly north of Pasadena, it is located approximately 14 miles (23 km) from Downtown Los Angeles. Its population was 42,846 at the 2020 census, up slightly from a 2010 figure of 42,777. In early 2025, the community was severely impacted by the Eaton Fire.
From the Wikipedia article Altadena, California, CC BY-SA 4.0.
Weather
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Forecast by Open-Meteo from national weather models. A forecast, not a measurement.
The past twelve months
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ERA5 reanalysis from Copernicus, via Open-Meteo. Modelled on a ~25 km grid, not measured at a station.
Air right now
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CAMS European and global air quality forecast, via Open-Meteo. Modelled on an 11–40 km grid; European AQI bands from the EEA.
Nearby on Wikipedia
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Articles with coordinates within 10 km, from English Wikipedia.
Towns around Altadena
- Pasadena4.8 km S
- La Cañada Flintridge5.3 km W
- South Pasadena8.4 km S
- Arcadia10 km SE
- Alhambra11 km S
- San Gabriel11 km S
- La Crescenta-Montrose11 km NW
- Temple City11 km SE
Straight-line distance and compass bearing from the town centre.