Current conditions at

ACTON (ATNC1)

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

NA

66°F

19°C

Humidity 32%
Wind Speed NNE 7 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility NA
Last update 07 Feb 04:54 PM PST
Detailed forecast for

Western San Gabriel Mountains and Highway 14 Corridor

Tonight
Partly cloudy in the evening then clear. Lows in the mid 40s to mid 50s. Northeast winds 15 to 25 mph.
Sunday
Sunny. Highs from the 70s at low elevations to the 60s at high elevations. Northeast winds 15 to 25 mph with gusts to 35 mph.
Sunday Night
Clear. Lows in the upper 40s to mid 50s. North winds 15 to 25 mph.
Monday
Sunny in the morning then mostly cloudy. Highs from the lower to mid 70s at low elevations to the mid to upper 60s at high elevations. North winds around 15 mph shifting to the southwest in the afternoon.
Monday Night
Mostly cloudy. Lows in the mid 40s to mid 50s. Southwest winds around 15 mph.
Tuesday
Mostly cloudy. A chance of rain in the afternoon. Highs from the mid 50s to around 60 at low elevations to the upper 40s to mid 50s at high elevations.
Tuesday Night
Mostly cloudy with a chance of rain. Lows in the 40s to around 50 except around 40 colder valleys and slopes.
Wednesday
Mostly cloudy. A slight chance of rain and snow in the morning, then a chance of rain in the afternoon. Highs from around 60 at low elevations to the upper 40s to mid 50s at high elevations.
Wednesday Night
Mostly cloudy with a slight chance of rain in the evening, becoming partly cloudy with a slight chance of rain and snow after midnight. Lows in the upper 30s and 40s.
Thursday
Sunny in the morning, becoming partly cloudy with a slight chance of rain in the afternoon. Highs from the upper 50s to mid 60s at low elevations to the lower to mid 50s at high elevations.
Thursday Night
Mostly clear. A slight chance of rain and snow in the evening. Lows in the mid 30s to mid 40s.
Friday
Sunny. Highs from the lower to mid 60s at low elevations to the mid to upper 50s at high elevations.
Friday Night
Partly cloudy in the evening then mostly cloudy. Lows in the upper 30s and 40s.
Saturday
Partly cloudy. A slight chance of rain and snow in the afternoon. Highs from the mid 50s to lower 60s at low elevations to the upper 40s to mid 50s at high elevations.



Basemap Options
Click map to change the forecast location
Loading map...
108 PM PST Sat Feb 7 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database