Hazardous Weather Conditions
Current conditions at
ACTON (ATNC1)
Lat: 34.44639°NLon: 118.1968°WElev: 2600.0ft.NA
50°F
10°C
| Humidity | 41% |
| Wind Speed | NNE 13 MPH |
| Barometer | NA |
| Dewpoint | 27°F (-3°C) |
| Visibility | NA |
| Wind Chill | 45°F (7°C) |
| Last update | 31 Dec 07:54 AM PST |
Extended Forecast for
9 Miles NNW Altadena CA
Flood Watch December 31, 10:00pm until January 1, 10:00pm
Today

High: 55 °F
Rain
Tonight

Low: 45 °F
Rain
New Year's Day

High: 53 °F
Showers and
BreezyThursday Night
Low: 43 °F
Slight Chance
Showers then
Mostly CloudyFriday

High: 53 °F
Mostly Cloudy
Friday Night

Low: 45 °F
Chance Rain
Saturday

High: 52 °F
Rain Likely
Saturday Night

Low: 44 °F
Rain Likely
Sunday

High: 52 °F
Rain Likely
Detailed Forecast
Today
Rain. High near 55. East wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Tonight
Rain, with thunderstorms also possible after 4am. Low around 45. Southeast wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
New Year's Day
Rain and possibly a thunderstorm before 10am, then rain between 10am and 4pm, then a slight chance of showers after 4pm. High near 53. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Thursday Night
A 20 percent chance of showers before 10pm. Mostly cloudy, with a low around 43. South southeast wind around 10 mph.
Friday
Mostly cloudy, with a high near 53. South wind around 10 mph.
Friday Night
A 40 percent chance of rain after 10pm. Mostly cloudy, with a low around 45.
Saturday
Rain likely. Mostly cloudy, with a high near 52. Chance of precipitation is 70%.
Saturday Night
Rain likely, mainly before 4am. Mostly cloudy, with a low around 44.
Sunday
Rain likely, mainly between 10am and 4pm. Mostly cloudy, with a high near 52.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 43.
Monday
A chance of rain. Mostly cloudy, with a high near 51.
Monday Night
A chance of rain. Mostly cloudy, with a low around 42.
Tuesday
A chance of rain. Partly sunny, with a high near 52.
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)
7:01 am PST Dec 31, 2025
8am PST Dec 31, 2025-6pm PST Jan 6, 2026



