Hourly Weather Forecast - Altadena, CA

12 AM
62°F
90%
5mph
SE
Thunderstorms
Humidity
79%
Feels like
62°F
Dew Point
56°F
1 AM
63°F
90%
5mph
SE
Thunderstorms
Humidity
76%
Feels like
63°F
Dew Point
55°F
2 AM
63°F
90%
5mph
SE
Rain
Humidity
75%
Feels like
63°F
Dew Point
55°F
3 AM
63°F
90%
6mph
SE
Rain
Humidity
74%
Feels like
63°F
Dew Point
54°F
4 AM
63°F
90%
6mph
SE
Rain
Humidity
74%
Feels like
63°F
Dew Point
54°F
5 AM
63°F
90%
5mph
SSE
Rain Showers
Humidity
74%
Feels like
63°F
Dew Point
54°F
6 AM
63°F
90%
5mph
SSE
Rain Showers
Humidity
74%
Feels like
63°F
Dew Point
55°F
6:56 AM
7 AM
63°F
100%
5mph
SSE
Rain Showers
Humidity
77%
Feels like
63°F
Dew Point
55°F
8 AM
62°F
100%
6mph
SSE
Rain Showers
Humidity
80%
Feels like
62°F
Dew Point
56°F
9 AM
62°F
100%
7mph
SSE
Rain
Humidity
83%
Feels like
62°F
Dew Point
56°F
10 AM
61°F
100%
7mph
SSE
Rain
Humidity
86%
Feels like
61°F
Dew Point
57°F
11 AM
60°F
100%
7mph
S
Rain
Humidity
89%
Feels like
60°F
Dew Point
56°F
12 PM
59°F
100%
7mph
S
Rain
Humidity
90%
Feels like
59°F
Dew Point
56°F
1 PM
58°F
100%
6mph
S
Rain
Humidity
91%
Feels like
58°F
Dew Point
56°F
2 PM
58°F
100%
6mph
SSW
Rain
Humidity
94%
Feels like
58°F
Dew Point
56°F
3 PM
57°F
100%
6mph
SSW
Rain
Humidity
97%
Feels like
57°F
Dew Point
56°F
4 PM
56°F
100%
6mph
SSW
Rain
Humidity
98%
Feels like
56°F
Dew Point
56°F
4:49 PM
5 PM
56°F
100%
4mph
S
Rain
Humidity
97%
Feels like
56°F
Dew Point
55°F
6 PM
56°F
100%
4mph
S
Rain
Humidity
95%
Feels like
56°F
Dew Point
55°F
7 PM
57°F
100%
4mph
S
Rain
Humidity
90%
Feels like
57°F
Dew Point
54°F
8 PM
58°F
100%
3mph
SSE
Rain
Humidity
87%
Feels like
58°F
Dew Point
54°F
9 PM
58°F
100%
3mph
SSE
Rain
Humidity
83%
Feels like
58°F
Dew Point
53°F
10 PM
59°F
100%
3mph
SE
Rain
Humidity
81%
Feels like
59°F
Dew Point
53°F
11 PM
59°F
100%
3mph
SE
Rain
Humidity
79%
Feels like
59°F
Dew Point
53°F

Rain And Snow Totals Through Monday

Atmospheric River Takes Aim For Northern California

The plume of abundant moisture impacting the Northwest the last several days will focus more on Northern California later today into Monday bringing heavy rainfall and mountain snow.

NOAA, NCDC

White Christmas? What Are The Odds

Sunday's Weather Outlook

Sunday's Weather Outlook

Cold weather

During Extreme Cold: Watch for Frostbite!

Flu Update Valid For Week Ending December 13, 2025

Weekly Flu Update: Flu Spreading Hard Across U.S.

Watch vs. Warning

Flash Flood Watch and Warning Defined

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