Walnut, CA Weather Forecast and Current Conditions (91788)
Feels Like 89°F
Current Weather
Feels Like 89°F
Forecast at a Glance
This Date in Weather History
1987 - Barrow, AK, received 5.1 inches of snow, a record for September.
More on this and other weather history
Walnut 7 Day Weather Forecast Details
Sunday Sep 14
Day: Sunny, with a high near 82. West southwest wind 5 to 10 mph.
Night: Patchy fog after 11pm. Partly cloudy, with a low around 64. South southwest wind 0 to 5 mph.
Monday Sep 15
Day: Patchy fog before 11am. Mostly sunny, with a high near 92. Southwest wind 0 to 5 mph.
Night: Patchy fog after 5am. Partly cloudy, with a low around 68. Northwest wind 0 to 5 mph.
Tuesday Sep 16
Day: Patchy fog before 11am. Mostly sunny, with a high near 96. Southwest wind 0 to 10 mph.
Night: A slight chance of showers and thunderstorms after 5am. Mostly clear, with a low around 69. Chance of precipitation is 20%.
Wednesday Sep 17
Day: A slight chance of showers and thunderstorms. Mostly sunny, with a high near 96.
Night: A slight chance of showers and thunderstorms before 5am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 70.
Thursday Sep 18
Day: A chance of showers and thunderstorms before 5pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 93.
Night: A slight chance of showers and thunderstorms before 5am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Friday Sep 19
Day: A chance of showers and thunderstorms before 5pm. Mostly sunny, with a high near 89.
Night: A slight chance of rain showers after 5am. Partly cloudy, with a low around 67.
Saturday Sep 20
Day: A slight chance of rain showers before 5pm. Mostly sunny, with a high near 88.
Night: Mostly clear, with a low around 64.
Sun & Moon Monthly
Sunrise 6:35 AM
Sunset 7:01 PM
Last Light 7:26 PM
Moonset 2:29 PM
Contiguous United States Extremes
Sat's High Temperature
106 at Death Valley, CA
Sun's Low Temperature
18 at 27 Miles South Of Bonanza, UT
Weather Folklore
Wild geese fly high in pleasant weather and fly low in bad weather.
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About Walnut, California
Walnut is a city in the eastern part of Los Angeles County in the U.S. state of California. According to the 2020 census, the city had a population of 28,430.
The greater Walnut Valley is located between the steep San Jose Hills to the north and the gently sloping Puente Hills to the south. Quality housing consists of master-planned single family homes ranging in size from 1,800 to 11,200 sq ft (170 to 1,040 m2). The city hosts a highly ranked public school system: the Walnut Valley Unified School District, which has been ranked by numerous sources as one of the top public school districts in Southern California, as well as Mt. San Antonio College.
The city covers nearly 9 sq mi (23 km2) and is home to hundreds of businesses. According to the 2023 census bureau estimate, Walnut has a median household income at one of the top-earning percentiles in the country at $133,762.
The city's name is derived from the Rancho Los Nogales Mexican land grant, nogales being the Spanish word for "walnut trees"; the native California black walnut is a common tree, native to the San Jose Hills. The City of Walnut is a general law city incorporated on January 19, 1959. It is governed by a city council/city manager form of government. A five-member city council is elected by the residents, and a mayor is elected annually by the council to serve a twelve-month term. A city manager is appointed by the council to oversee the daily activities of the city.
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