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 Chill47°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
Click here for hazard details and duration
Winter Storm Watch
Flood Watch
High Wind Warning
  •  
    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 Windy

  • Tonight

    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.

    Low: 35 °F

    Breezy. Rain
    Likely then
    Chance Rain

  • Tuesday

    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.

    High: 44 °F

    Chance Rain
    and Breezy
    then Rain and
    Windy

  • Tuesday Night

    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.

    Low: 36 °F

    Very Windy.
    Heavy Rain
    then
    Rain/Snow

  • Wednesday

    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.

    High: 44 °F

    Breezy.
    Chance
    Rain/Snow
    then Mostly
    Sunny

  • Wednesday Night

    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.

    Low: 33 °F

    Chance Snow

  • Thursday

    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.

    High: 44 °F

    Chance
    Rain/Snow
    then Chance
    Rain

  • Thursday Night

    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.

    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.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles NNW Altadena CA
 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
 
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Additional Resources

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