Tomorrow's weather in Diamond Bar will be rain showers throughout the day. High temperatures will reach a mild 17°C (63°F), with lows dropping to around 16°C (61°F).

10-Day Weather Forecast

The 10-day forecast shows that temperatures will get warmer, maximum temperatures reach 26°C (79°F) on Tuesday. During this period, expect daytime highs around 22°C (72°F) and nighttime lows around 14°C (57°F). Compared to October norms, this represents much cooler than usual weather. The next 10 days will feature plenty of sunshine. Rain amounts are forecast to be much more than usual (relative to standard October patterns), with mostly dry conditions. There will be rain on around 2 days (Wed, Thu). Expect generally calm wind conditions.

Weather Forecast FAQ for Diamond Bar

When will be the warmest day next week?

The warmest day is expected to be Tuesday with a high of 26°C (79°F).

When will be the coldest day?

The coldest day is forecasted for Friday with a low of 11°C (52°F).

Will it rain next week in Diamond Bar?

Yes, rain is expected on 2 days , specifically on Wed, Thu.

How much rainfall is expected next week?

A total of 15 mm (0.6 in) of rain is forecasted for the 10-day period.

What will be the temperature range next week?

Temperatures will range from 11°C (52°F) to 26°C (79°F).

More about Diamond Bar

Explore the full Diamond Bar climate overview with monthly averages, or check rainfall data and temperature by month.

Diamond Bar weather by month

Browse monthly averages for Diamond Bar: climate by month with temperature, rainfall and sunshine.

January February March April May June July August September October November December

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