Hourly Weather Forecast - Diamond Bar, CA

12 AM
54°F
0%
2mph
ENE
Partly Cloudy
Humidity
61%
Feels like
54°F
Dew Point
41°F
1 AM
53°F
0%
2mph
ENE
Partly Cloudy
Humidity
62%
Feels like
53°F
Dew Point
41°F
2 AM
53°F
0%
2mph
ENE
Partly Cloudy
Humidity
62%
Feels like
53°F
Dew Point
40°F
3 AM
52°F
0%
3mph
ENE
Partly Cloudy
Humidity
61%
Feels like
52°F
Dew Point
39°F
4 AM
52°F
0%
3mph
ENE
Mostly Clear
Humidity
61%
Feels like
52°F
Dew Point
39°F
5 AM
51°F
0%
3mph
ENE
Mostly Clear
Humidity
61%
Feels like
51°F
Dew Point
38°F
6 AM
51°F
0%
2mph
ENE
Partly Cloudy
Humidity
59%
Feels like
51°F
Dew Point
37°F
6:54 AM
7 AM
53°F
0%
2mph
ENE
Partly Cloudy
Humidity
55%
Feels like
53°F
Dew Point
37°F
8 AM
57°F
0%
2mph
E
Partly Cloudy
Humidity
47%
Feels like
57°F
Dew Point
37°F
9 AM
62°F
0%
2mph
E
Mostly Sunny
Humidity
39%
Feels like
62°F
Dew Point
37°F
10 AM
67°F
0%
2mph
ESE
Mostly Sunny
Humidity
32%
Feels like
67°F
Dew Point
36°F
11 AM
70°F
0%
3mph
SSE
Sunny
Humidity
28%
Feels like
70°F
Dew Point
35°F
12 PM
72°F
0%
3mph
SW
Sunny
Humidity
26%
Feels like
72°F
Dew Point
35°F
1 PM
73°F
0%
4mph
SW
Sunny
Humidity
25%
Feels like
73°F
Dew Point
36°F
2 PM
73°F
0%
4mph
SW
Sunny
Humidity
26%
Feels like
73°F
Dew Point
36°F
3 PM
72°F
0%
5mph
SW
Sunny
Humidity
28%
Feels like
72°F
Dew Point
37°F
4 PM
69°F
0%
5mph
SW
Sunny
Humidity
32%
Feels like
69°F
Dew Point
38°F
5 PM
66°F
0%
4mph
SW
Mostly Sunny
Humidity
37%
Feels like
66°F
Dew Point
39°F
5:11 PM
6 PM
62°F
0%
3mph
WSW
Mostly Clear
Humidity
44%
Feels like
62°F
Dew Point
40°F
7 PM
60°F
0%
3mph
WSW
Partly Cloudy
Humidity
50%
Feels like
60°F
Dew Point
41°F
8 PM
58°F
0%
2mph
SW
Partly Cloudy
Humidity
56%
Feels like
58°F
Dew Point
42°F
9 PM
56°F
0%
2mph
SSW
Partly Cloudy
Humidity
60%
Feels like
56°F
Dew Point
43°F
10 PM
55°F
10%
2mph
S
Mostly Cloudy
Humidity
65%
Feels like
55°F
Dew Point
44°F
11 PM
54°F
10%
2mph
SSE
Mostly Cloudy
Humidity
68%
Feels like
54°F
Dew Point
44°F

Snow Forecast through Sunday

Unrelenting Storm Track Brings Snow to Great Lakes & Northeast

A couple low pressure systems will produce additional snowfall across the Great Lakes, Upper Midwest, and Northeast this weekend into the upcoming week.

Weekend Weather Outlook

Weekend Weather Outlook

Weekly Drought Map for January 15, 2026

Active Weather Creates Mix of Improvements, Degradations to Drought Depiction

Vehicle driving in wintry conditions

Prepare Your Car for Cold Weather

(Image provided by NOAA)

Polar Vortex: What Is It?

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

Safety Tips For Icy Surfaces

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide