Current conditions at

ACTON (ATNC1)

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

NA

40°F

4°C

Humidity 53%
Wind Speed NE 8 MPH
Barometer NA
Dewpoint 24°F (-4°C)
Visibility NA
Wind Chill35°F (2°C)
Last update 21 Feb 03:54 AM PST
Detailed forecast for

Western San Gabriel Mountains and Highway 14 Corridor

Today
Sunny. Highs from the mid 50s to lower 60s at low elevations to the upper 40s to mid 50s at high elevations. Northeast winds 15 to 25 mph with gusts to 35 mph.
Tonight
Partly cloudy. Lows in the mid 30s to mid 40s. Northeast winds 15 to 25 mph.
Sunday
Sunny. Highs from the 60s at low elevations to the mid 50s to around 60 at high elevations. Northeast winds 15 to 25 mph with gusts to 35 mph.
Sunday Night
Mostly clear in the evening then partly cloudy. Lows in the 40s to lower 50s. Northeast winds 15 to 25 mph.
Monday
Partly cloudy. Highs from the upper 60s to mid 70s at low elevations to the lower to mid 60s at high elevations. Northeast winds 15 to 25 mph.
Monday Night
Partly cloudy. Lows in the upper 40s to mid 50s.
Tuesday
Partly cloudy. Highs from the lower to mid 70s at low elevations to the mid to upper 60s at high elevations.
Tuesday Night
Partly cloudy. Lows in the upper 40s and 50s.
Wednesday
Partly cloudy in the morning then sunny. Highs from the lower to mid 70s at low elevations to the 60s at high elevations.
Wednesday Night
Partly cloudy. Lows in the upper 40s and 50s.
Thursday
Partly cloudy in the morning then sunny. Highs from the 70s at low elevations to the mid 60s to around 70 at high elevations.
Thursday Night
Mostly clear. Lows in the upper 40s and 50s.
Friday
Sunny in the morning then partly cloudy. Highs from the mid 70s to around 80 at low elevations to the mid 60s to around 70 at high elevations.



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109 AM PST Sat Feb 21 2026
 
 

Additional Resources

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