Hourly Weather Forecast - Diamond Bar, CA

3 PM
77°F
0%
5mph
NW
Sunny
Humidity
30%
Feels like
77°F
Dew Point
43°F
4 PM
73°F
0%
5mph
NW
Sunny
Humidity
34%
Feels like
73°F
Dew Point
43°F
4:42 PM
5 PM
69°F
0%
5mph
N
Clear
Humidity
39%
Feels like
69°F
Dew Point
43°F
6 PM
67°F
0%
5mph
E
Clear
Humidity
41%
Feels like
67°F
Dew Point
42°F
7 PM
64°F
0%
6mph
E
Clear
Humidity
42%
Feels like
64°F
Dew Point
41°F
8 PM
62°F
0%
6mph
E
Clear
Humidity
42%
Feels like
62°F
Dew Point
39°F
9 PM
61°F
0%
7mph
E
Clear
Humidity
41%
Feels like
61°F
Dew Point
37°F
10 PM
60°F
0%
7mph
E
Clear
Humidity
40%
Feels like
60°F
Dew Point
36°F
11 PM
58°F
0%
7mph
E
Clear
Humidity
40%
Feels like
58°F
Dew Point
35°F

Rainfall Forecast for Northwest through Thursday

Persistent, Flooding Rain Impacts the Northwest

A fast-moving series of atmospheric rivers continue to drench the Pacific Northwest today through Thursday.

Snowfall forecast Through Tonight

Snow To Spread Across Appalachians Into Mid-Atlantic

Tuesday's Weather Outlook

Tuesday's Weather Outlook

Weekly Drought Map for December 4, 2025

Active Week of Weather Leads to Mixed Drought Results

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

People skating on a frozen pond on a clear day. (Image by Q K from Pixabay)

Safety Tips For Icy Surfaces

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

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Weather Cameras

Outdoor Sports Guide