Current conditions at

ACTON (ATNC1)

Lat: 34.44639° N Lon: 118.1968° W Elev: 2600.0 ft.

NA

53°F

12°C

Humidity 93%
Wind Speed SSW 5 MPH
Barometer NA
Dewpoint 51°F (11°C)
Visibility NA
Last update 24 Dec 04:54 PM PST
Detailed forecast for

Western San Gabriel Mountains and Highway 14 Corridor

Tonight
Showers. Lows in the 40s to around 50. South winds 20 to 30 mph with gusts to 50 mph.
Christmas Day
Showers likely in the morning then showers. A slight chance of thunderstorms. Some thunderstorms may produce heavy rainfall. Highs from the mid to upper 50s at low elevations to the mid 40s to around 50 at high elevations. South winds 25 to 35 mph with gusts to 50 mph.
Thursday Night
Showers. Lows in the 40s to lower 50s. South winds 20 to 30 mph with gusts to 45 mph.
Friday
Showers. Highs in the upper 40s to mid 50s. South winds 15 to 25 mph.
Friday Night
Showers likely in the evening, then a chance of rain and snow showers after midnight. Lows in the mid 30s to mid 40s. Southwest winds around 15 mph in the evening.
Saturday
Partly cloudy with a chance of snow showers and a slight chance of showers. Highs from the lower to mid 50s at low elevations to the mid 40s to around 50 at high elevations.
Saturday Night
Mostly clear. A slight chance of showers in the evening. Lows in the mid 30s to mid 40s.
Sunday
Sunny. Highs from the 50s at low elevations to the mid 40s to around 50 at high elevations.
Sunday Night
Mostly clear. Lows in the mid 30s to mid 40s.
Monday
Sunny. Highs from the mid 50s to lower 60s at low elevations to around 50 at high elevations.
Monday Night
Mostly clear in the evening then partly cloudy. Lows in the 40s to around 50.
Tuesday
Partly cloudy. A slight chance of showers in the afternoon. Highs from the upper 50s to mid 60s at low elevations to the upper 40s to mid 50s at high elevations.
Tuesday Night
Partly cloudy with a slight chance of showers in the evening, becoming mostly cloudy with a chance of showers after midnight. Lows in the 40s to lower 50s.
Wednesday
Mostly cloudy with a chance of showers. Highs from the upper 50s to mid 60s at low elevations to the lower to mid 50s at high elevations.



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110 PM PST Wed Dec 24 2025
 
 

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