142 places in Los Angeles County, California, each with its own live forecast and radar, and where a station sits close enough, measured weather records.
Los Angeles County has 142 places on myweatherrock (88 cities, 54 census-designated places), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 121°F at Chino Ap on September 6, 2020. The coldest night is 0°F at Fairmont on January 5, 1913. The wettest day brought 14.39 inches of rain at Big Tujunga Dam Fc46 on January 22, 1943. The biggest single-day snow measured 15.98 inches at Mt Wilson Cbs on December 29, 1974. Those are station measurements from NOAA's daily records, 1893 to 2026, not official state records. By area the largest place is Los Angeles, about 471 square miles.
About Los Angeles County weather
The map on the Now tab shows every Los Angeles County town's current temperature from our own server, one dot per town. Tap any dot, or type a town above, for that town's full forecast.
What the weather is usually like
Across the 141 Los Angeles County towns with station normals, the warmest month is August, when the day usually reaches 87°F, and the coldest is December, when the night usually falls to 44°F. February is the wettest, with rain on about 7 days. August afternoons run from about 76°F in Del Aire to 98°F in Acton. December nights run from about 30°F in Lancaster to 51°F in Beverly Hills.
Means of the 1991 to 2020 station normals serving these towns, as published by NOAA; each town's page carries its own.
Where these numbers come from
Current conditions and forecast: NOAA forecast grids decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
Records: computed by myweatherrock from NOAA GHCN-Daily station records at the stations serving these towns. Measurements, not estimates.
Warnings and alerts: the National Weather Service, passed through unchanged.
Los Angeles County weather records
Hottest day
121°F
Chino Ap, September 6, 2020
Coldest night
0°F
Fairmont, January 5, 1913
Wettest day
14.39 in
Big Tujunga Dam Fc46, January 22, 1943
Biggest snow
15.98 in
Mt Wilson Cbs, December 29, 1974
Measured at the NOAA stations serving these towns, daily records 1893 to 2026. Station extremes, not official state records.
Common questions about Los Angeles County weather
What is the hottest temperature recorded at a Los Angeles County station?
121°F at Chino Ap on September 6, 2020, in the NOAA daily station records myweatherrock holds (1893 to 2026).
What is the coldest temperature recorded at a Los Angeles County station?
0°F at Fairmont on January 5, 1913.
What is the most rain a Los Angeles County station has measured in one day?
14.39 inches at Big Tujunga Dam Fc46 on January 22, 1943.
What is the biggest one-day snowfall at a Los Angeles County station?
15.98 inches at Mt Wilson Cbs on December 29, 1974.
How many Los Angeles County towns have a weather page here?
142: 88 cities, 54 census-designated places. Each page carries current conditions, the hourly timeline, the ten day outlook, radar, and where a station sits close enough, measured records.
Where does the Los Angeles County forecast come from?
NOAA forecast grids (the National Weather Service digital forecast, the National Blend of Models, HRRR and GFS) decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
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