

High temperatures remain relatively stable through the week, ranging from 73°F to 81°F. Dry weather expected throughout the week.
This week's forecast shows temperatures running 5°F above the historical average for November. Normal highs for this period are around 72°F with lows around 48°F.
1946 - A heavy wet snow began to cover the Southern Rockies. Up to three feet of snow blanketed the mountains of New Mexico, and a 31 inch snow at Denver CO caused roofs to collapse.
More on this and other weather history
Day: Patchy fog before 10am. Mostly sunny, with a high near 76. Southwest wind 0 to 5 mph.
Night: Patchy fog after 4am. Mostly cloudy, with a low around 55. Southwest wind 0 to 5 mph.
Day: Patchy fog before 10am. Mostly sunny, with a high near 79. South southwest wind 0 to 5 mph.
Night: Clear, with a low around 53. East southeast wind 0 to 5 mph.
Day: Sunny, with a high near 77. South southwest wind 0 to 5 mph.
Night: Partly cloudy, with a low around 53.
Day: Mostly sunny, with a high near 73.
Night: Mostly clear, with a low around 53.
Day: Sunny, with a high near 73.
Night: Mostly clear, with a low around 54.
Day: Sunny, with a high near 80.
Night: Mostly clear, with a low around 56.
Day: Sunny, with a high near 81.
Night: Mostly clear, with a low around 57.
Sat's High Temperature
97 at 6 Miles West-southwest Of Glamis, CA
Sun's Low Temperature
13 at 4 Miles Northwest Of Grand Lake, CO

Diamond Bar is a city in eastern Los Angeles County, California, United States. The 2020 census listed a population of 55,072. It is one of a few cities in California with a majority Asian population (59.24% as of 2020). It is named after the "diamond over a bar" branding iron registered in 1918 by ranch owner Frederic E. Lewis (1884–1963). The city features a public Los Angeles County golf course.
Located at the junction of the Pomona and Orange freeways, Diamond Bar is primarily residential with shopping centers interspersed throughout the city. It is surrounded by the cities of Brea, Walnut, Chino Hills, Pomona, City of Industry, and the unincorporated areas of Rowland Heights and South Diamond Bar.
Northern Diamond Bar is a part of the Pomona Unified School District. Southern Diamond Bar is a part of the Walnut Valley Unified School District. The city is also served by International Polytechnic High School. It also has the first hydrogen fueling station to be built in Southern California, near the South Coast Air Quality Management District building.
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Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.
Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.