Weather in Diamond Bar, United States 🇺🇸
Diamond Bar currently sits at 23°C, clear, feeling like 23°C. Relative humidity is 50%, with winds around 4 km/h, and the UV index is 0 (low). In the days ahead, expect temperatures in Diamond Bar from about 18°C to 29°C.
Hourly Forecast for Diamond Bar
14-Day Forecast for Diamond Bar
Sunny
Sunny
Sunny
Patchy rain nearby
Sunny
Sunny
Overcast
Sunny
Overcast
Sunny
Overcast
Overcast
Sunny
Sunny
Additional Forecasts for Diamond Bar
Air Quality
Historical Weather
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Best Time to Be Outside in Diamond Bar Today
The most comfortable window in Diamond Bar today looks like 08:00 to 11:00, when it is around 22°C. It should stay dry through that window. No significant rain is expected in the next several hours.
Frequently Asked Questions about Weather in Diamond Bar
What is the temperature in Diamond Bar right now?
It is currently 23°C (74°F) in Diamond Bar, clear (feels like 23°C).
What's the weather like in Diamond Bar right now?
Current weather in Diamond Bar: Clear, humidity 50%, wind 4 km/h WSW.
What is today's forecast for Diamond Bar?
Today in Diamond Bar: high 29°C, low 21°C, sunny. Chance of rain: 1%.
What is the 7-day weather forecast for Diamond Bar?
Daily highs and lows for Diamond Bar:
- 2026-10-19: 29°C / 21°C
- 2026-10-20: 28°C / 20°C
- 2026-10-21: 26°C / 18°C
- 2026-10-22: 22°C / 17°C
- 2026-10-23: 24°C / 16°C
- 2026-10-24: 29°C / 18°C
- 2026-10-25: 31°C / 20°C
Is it going to rain in Diamond Bar today?
There is a 1% chance of rain in Diamond Bar today.
What is the wind speed in Diamond Bar right now?
Wind in Diamond Bar is currently 4 km/h (2 mph) from the WSW.
What is the UV index in Diamond Bar right now?
The UV index in Diamond Bar is currently 0 (low). Sun protection is recommended when the index is 3 or higher.
