Hazardous Weather Conditions
Current conditions at
ACTON (ATNC1)
Lat: 34.44639°NLon: 118.1968°WElev: 2600.0ft.NA
45°F
7°C
| Humidity | 78% |
| Wind Speed | SSW 26 MPH |
| Barometer | NA |
| Dewpoint | 38°F (3°C) |
| Visibility | NA |
| Wind Chill | 36°F (2°C) |
| Last update | 17 Feb 08:54 PM PST |
Extended Forecast for
9 Miles NNW Altadena CA
Flood Watch until February 18, 06:00am
Flood Advisory until February 18, 06:00am
Winter Storm Warning until February 20, 07:00am
NOW: Multiple hazards in effect

Click HERE for Details
Tonight

Low: 30 °F
Rain and
WindyWednesday
High: 42 °F
Partly Sunny
and Breezy
then Partly
SunnyWednesday Night
Low: 27 °F
Partly Cloudy
then Chance
SnowThursday
High: 41 °F
Breezy.
Rain/Snow
then RainThursday Night
Low: 29 °F
Chance
Rain/Snow and
Breezy then
Slight Chance
SnowFriday

High: 47 °F
Sunny
Friday Night

Low: 33 °F
Mostly Clear
Saturday

High: 53 °F
Sunny
Detailed Forecast
Tonight
Rain, with thunderstorms also possible after 10pm. Low around 30. Wind chill values as low as 15. Windy, with a southwest wind around 35 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Wednesday
Partly sunny, with a high near 42. Wind chill values as low as 15. Breezy, with a west southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Wednesday Night
A 30 percent chance of snow after 4am. Partly cloudy, with a low around 27. Wind chill values as low as 20. West wind around 10 mph, with gusts as high as 15 mph. New snow accumulation of less than a half inch possible.
Thursday
A chance of snow before 10am, then rain. High near 41. Wind chill values as low as 15. Breezy, with a west southwest wind 20 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Thursday Night
A chance of rain and snow before 7pm, then a chance of snow. Partly cloudy, with a low around 29. Breezy, with a west wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Friday
Sunny, with a high near 47.
Friday Night
Mostly clear, with a low around 33.
Saturday
Sunny, with a high near 53.
Saturday Night
Mostly cloudy, with a low around 40.
Sunday
A slight chance of rain after 10am. Mostly sunny, with a high near 57.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 43.
Monday
A chance of rain. Partly sunny, with a high near 60.
Monday Night
A chance of rain. Mostly cloudy, with a low around 46.
Tuesday
A chance of rain. Partly sunny, with a high near 59.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
9 Miles NNW Altadena CA
34.31°N 118.19°W (Elev. 4052 ft)
34.31°N 118.19°W (Elev. 4052 ft)
7:41 pm PST Feb 17, 2026
9pm PST Feb 17, 2026-6pm PST Feb 24, 2026



