Hourly Weather Forecast - Diamond Bar, CA

4 PM
75°F
0%
4mph
WNW
Sunny
Humidity
28%
Feels like
75°F
Dew Point
40°F
4:42 PM
5 PM
71°F
0%
4mph
SW
Clear
Humidity
32%
Feels like
71°F
Dew Point
40°F
6 PM
68°F
0%
4mph
ESE
Clear
Humidity
35%
Feels like
68°F
Dew Point
39°F
7 PM
65°F
0%
5mph
ESE
Clear
Humidity
36%
Feels like
65°F
Dew Point
38°F
8 PM
64°F
0%
5mph
E
Clear
Humidity
37%
Feels like
64°F
Dew Point
37°F
9 PM
62°F
0%
6mph
E
Clear
Humidity
38%
Feels like
62°F
Dew Point
36°F
10 PM
61°F
0%
6mph
E
Clear
Humidity
38%
Feels like
61°F
Dew Point
35°F
11 PM
60°F
0%
7mph
E
Clear
Humidity
38%
Feels like
60°F
Dew Point
34°F

Snow and ice forecast through Thursday A.M.

Snow Barrels Across the Northern U.S.

Low pressure will produce a swath of snow from Minnesota to Maine into Thursday.

Rainfall Forecast for Northwest through Thursday

Heavy Rain, Flooding Soaks The Northwest

Wednesday's Weather Outlook

Wednesday'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

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide