Hourly Weather Forecast - Altadena, CA

12 AM
64°F
0%
2mph
NNE
Clear
Humidity
44%
Feels like
64°F
Dew Point
41°F
1 AM
63°F
0%
2mph
NNE
Clear
Humidity
44%
Feels like
63°F
Dew Point
41°F
2 AM
62°F
0%
2mph
NNE
Clear
Humidity
44%
Feels like
62°F
Dew Point
40°F
3 AM
62°F
0%
2mph
NE
Clear
Humidity
45%
Feels like
62°F
Dew Point
40°F
4 AM
62°F
0%
2mph
NE
Clear
Humidity
45%
Feels like
62°F
Dew Point
40°F
5 AM
62°F
0%
2mph
NE
Clear
Humidity
45%
Feels like
62°F
Dew Point
40°F
6 AM
61°F
0%
2mph
NE
Mostly Clear
Humidity
45%
Feels like
61°F
Dew Point
40°F
6:53 AM
7 AM
63°F
0%
2mph
NE
Mostly Sunny
Humidity
44%
Feels like
63°F
Dew Point
41°F
8 AM
66°F
0%
2mph
NE
Mostly Sunny
Humidity
44%
Feels like
66°F
Dew Point
44°F
9 AM
69°F
0%
1mph
SE
Sunny
Humidity
44%
Feels like
69°F
Dew Point
46°F
10 AM
70°F
0%
1mph
SSW
Sunny
Humidity
45%
Feels like
70°F
Dew Point
47°F
11 AM
70°F
0%
2mph
S
Sunny
Humidity
46%
Feels like
70°F
Dew Point
49°F
12 PM
70°F
0%
2mph
S
Sunny
Humidity
49%
Feels like
70°F
Dew Point
50°F
1 PM
70°F
0%
3mph
S
Mostly Sunny
Humidity
53%
Feels like
70°F
Dew Point
52°F
2 PM
69°F
0%
3mph
S
Mostly Sunny
Humidity
56%
Feels like
69°F
Dew Point
53°F
3 PM
67°F
0%
3mph
S
Mostly Sunny
Humidity
62%
Feels like
67°F
Dew Point
54°F
4 PM
65°F
0%
3mph
SSW
Mostly Sunny
Humidity
68%
Feels like
65°F
Dew Point
54°F
4:45 PM
5 PM
63°F
0%
3mph
S
Mostly Clear
Humidity
70%
Feels like
63°F
Dew Point
53°F
6 PM
61°F
10%
2mph
SSE
Mostly Clear
Humidity
72%
Feels like
61°F
Dew Point
52°F
7 PM
61°F
10%
2mph
ESE
Partly Cloudy
Humidity
72%
Feels like
61°F
Dew Point
52°F
8 PM
60°F
10%
2mph
E
Mostly Clear
Humidity
72%
Feels like
60°F
Dew Point
51°F
9 PM
59°F
10%
2mph
E
Mostly Clear
Humidity
73%
Feels like
59°F
Dew Point
51°F
10 PM
59°F
10%
2mph
ENE
Mostly Clear
Humidity
71%
Feels like
59°F
Dew Point
50°F
11 PM
59°F
10%
2mph
ENE
Mostly Clear
Humidity
68%
Feels like
59°F
Dew Point
49°F

Forecast Peak Wind Gusts Today

High Winds, Rain, and Snow Cross the Country

A clipper moving over the Great Lakes brings rain, snow, and high winds through the Atlantic Coastline.

Rainfall and Snowfall Totals Through Friday

Atmospheric River Symptoms Repeat in the Northwest

Friday's Weather Outlook

Friday's Weather Outlook

Flu Update Valid For Week Ending December 6, 2025

Weekly Flu Update: Flu Exceeds Annual Baseline

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

How to Measure Snow via NWS

How To Measure Snow

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