Diamond Bar Weather Forecast 15 Days, Weather in Diamond Bar Today
Current weather conditions and 15 day weather forecast for Diamond Bar, California, USA including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain risk, wind speed, cloud, pressure, and UV index.
Current weather conditions at Diamond Bar
| 28 March 2026 Saturday 32.2 ° C / 90°F  Partly cloudy |
Feels Like : 30.7 ° C / 87.3°F Humidity : % 16 Pressure : 1014 mb Wind Speed : 11.9 kmph / 7.4 miles from SW  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 75 |
15 day weather forecast for Diamond Bar, CA, USA
Weather Forecast for next 15 Days for Diamond Bar including weather warnings, temperature, rain, wind speed, cloud, snow, wind speed and wind direction, pressure and UV index.Here is weather for the next 15 days in Diamond Bar, California state, US. To see the daily forecast, scroll to the table below.
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 28 March 2026 Saturday |  Sunny |
13.5 ° C (56.3°F) |
33.3 ° C (91.9°F) |
21.5 ° C (70.7°F) |
% 56 | 0% | 1.8 | Sunrise:06:44 AM Sunset: 07:09 PM |
Moonrise:03:02 PM Moonset: 04:23 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 March 2026 Sunday | Sunny |
17.3 ° C (63.1°F) |
33.2 ° C (91.8°F) |
24.3 ° C (75.7°F) |
% 29 | 0% | 1.8 | Sunrise:06:42 AM Sunset: 07:10 PM |
Moonrise:04:08 PM Moonset: 04:55 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 March 2026 Monday |  Overcast |
15.9 ° C (60.6°F) |
22.9 ° C (73.2°F) |
19.1 ° C (66.3°F) |
% 50 | 0% | 1.4 | Sunrise:06:41 AM Sunset: 07:11 PM |
Moonrise:05:11 PM Moonset: 05:24 AM Moon Phase ( Waxing Gibbous ) |
|
| 31 March 2026 Tuesday | Overcast |
14.1 ° C (57.4°F) |
21.8 ° C (71.2°F) |
17 ° C (62.6°F) |
% 69 | 0% | 1.8 | Sunrise:06:40 AM Sunset: 07:12 PM |
Moonrise:06:11 PM Moonset: 05:51 AM Moon Phase ( Waxing Gibbous ) |
|
| 01 April 2026 Wednesday | Sunny |
15.7 ° C (60.2°F) |
24.1 ° C (75.3°F) |
18.9 ° C (65.9°F) |
% 55 | 0% | 1.8 | Sunrise:06:38 AM Sunset: 07:12 PM |
Moonrise:07:12 PM Moonset: 06:15 AM Moon Phase ( Waxing Gibbous ) |
|
| 02 April 2026 Thursday | Partly Cloudy |
14.1 ° C (57.4°F) |
22 ° C (71.6°F) |
16.2 ° C (61.2°F) |
% 67 | 0% | 0 | Sunrise:06:37 AM Sunset: 07:13 PM |
Moonrise:08:11 PM Moonset: 06:41 AM Moon Phase ( Full Moon ) |
|
| 03 April 2026 Friday | Partly Cloudy |
14.4 ° C (57.9°F) |
23 ° C (73.3°F) |
17.7 ° C (63.8°F) |
% 54 | 0% | 5 | Sunrise:06:35 AM Sunset: 07:14 PM |
Moonrise:09:11 PM Moonset: 07:09 AM Moon Phase ( Waning Gibbous ) |
|
| 04 April 2026 Saturday | Sunny |
13.4 ° C (56.1°F) |
28.2 ° C (82.7°F) |
20.5 ° C (68.9°F) |
% 31 | 0% | 6 | Sunrise:06:34 AM Sunset: 07:15 PM |
Moonrise:10:11 PM Moonset: 07:39 AM Moon Phase ( Waning Gibbous ) |
|
| 05 April 2026 Sunday | Sunny |
15.4 ° C (59.8°F) |
29.5 ° C (85.2°F) |
22.2 ° C (72°F) |
% 15 | 0% | 6 | Sunrise:06:33 AM Sunset: 07:15 PM |
Moonrise:11:11 PM Moonset: 08:13 AM Moon Phase ( Waning Gibbous ) |
|
| 06 April 2026 Monday | Sunny |
15.9 ° C (60.6°F) |
26.7 ° C (80°F) |
20.3 ° C (68.6°F) |
% 40 | 0% | 6 | Sunrise:06:31 AM Sunset: 07:16 PM |
Moonrise:No moonrise Moonset: 08:53 AM Moon Phase ( Waning Gibbous ) |
|
| 07 April 2026 Tuesday | Sunny |
15.4 ° C (59.7°F) |
24.8 ° C (76.7°F) |
19.3 ° C (66.7°F) |
% 56 | 0% | 5 | Sunrise:06:30 AM Sunset: 07:17 PM |
Moonrise:12:08 AM Moonset: 09:39 AM Moon Phase ( Waning Gibbous ) |
|
| 08 April 2026 Wednesday | Sunny |
15.5 ° C (59.9°F) |
26.4 ° C (79.5°F) |
20.3 ° C (68.5°F) |
% 50 | 0% | 6 | Sunrise:06:29 AM Sunset: 07:18 PM |
Moonrise:01:02 AM Moonset: 10:30 AM Moon Phase ( Waning Gibbous ) |
|
| 09 April 2026 Thursday | Partly Cloudy |
16.9 ° C (62.4°F) |
23.4 ° C (74.2°F) |
19.6 ° C (67.4°F) |
% 53 | 0% | 5 | Sunrise:06:27 AM Sunset: 07:18 PM |
Moonrise:01:50 AM Moonset: 11:27 AM Moon Phase ( Waning Gibbous ) |
|
| 10 April 2026 Friday | Sunny |
14.9 ° C (58.8°F) |
23.7 ° C (74.6°F) |
18 ° C (64.4°F) |
% 58 | 0% | 5 | Sunrise:06:26 AM Sunset: 07:19 PM |
Moonrise:02:32 AM Moonset: 12:27 PM Moon Phase ( Last Quarter ) |
|
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