Hazardous Weather Conditions
Current conditions at
ACTON (ATNC1)
Lat: 34.44639°NLon: 118.1968°WElev: 2600.0ft.NA
48°F
9°C
| Humidity | 72% |
| Wind Speed | E 4 MPH |
| Barometer | NA |
| Dewpoint | 39°F (4°C) |
| Visibility | NA |
| Wind Chill | 47°F (8°C) |
| Last update | 16 Feb 06:54 AM PST |
Extended Forecast for
9 Miles NNW Altadena CA
Winter Storm Watch February 17, 09:00pm until February 19, 09:00am
Flood Watch February 16, 09:00am until February 16, 09:00pm
High Wind Warning until February 16, 06:00pm
NOW until 6:00pm Mon

High Wind Warning
Washington's Birthday

High: 45 °F
Heavy Rain
and WindyTonight
Low: 35 °F
Breezy. Rain
Likely then
Chance RainTuesday
High: 44 °F
Chance Rain
and Breezy
then Rain and
WindyTuesday Night
Low: 36 °F
Very Windy.
Heavy Rain
then
Rain/SnowWednesday
High: 44 °F
Breezy.
Chance
Rain/Snow
then Mostly
SunnyWednesday Night

Low: 33 °F
Chance Snow
Thursday
High: 44 °F
Chance
Rain/Snow
then Chance
RainThursday Night

Low: 32 °F
Chance
Rain/Snow
Detailed Forecast
Washington's Birthday
Rain and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 45. Wind chill values as low as 25 early. Windy, with a southwest wind 30 to 35 mph, with gusts as high as 50 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Tonight
Rain likely and possibly a thunderstorm before 10pm, then a chance of rain. Cloudy, with a low around 35. Wind chill values as low as 20. Breezy, with a southwest wind 20 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.
Tuesday
Rain, mainly after 4pm. High near 44. Wind chill values as low as 25. Windy, with a south southwest wind 20 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
Rain before 4am, then a chance of rain and snow. The rain could be heavy at times. Low around 36. Wind chill values as low as 20. Very windy, with a southwest wind 35 to 40 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Wednesday
A chance of rain and snow before 10am. Mostly sunny, with a high near 44. Breezy, with a west southwest wind around 25 mph, with gusts as high as 35 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Wednesday Night
A 30 percent chance of snow, mainly after 4am. Partly cloudy, with a low around 33. New snow accumulation of less than a half inch possible.
Thursday
A chance of snow before 10am, then a chance of rain. Partly sunny, with a high near 44. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Thursday Night
A chance of rain before 10pm, then a chance of rain and snow between 10pm and 4am, then a slight chance of snow after 4am. Mostly cloudy, with a low around 32.
Friday
A slight chance of snow before 10am, then a slight chance of rain. Mostly sunny, with a high near 49.
Friday Night
Partly cloudy, with a low around 35.
Saturday
Sunny, with a high near 52.
Saturday Night
Partly cloudy, with a low around 40.
Sunday
Mostly sunny, with a high near 58.
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)
2:42 am PST Feb 16, 2026
7am PST Feb 16, 2026-6pm PST Feb 22, 2026



