Current conditions at

ACTON (ATNC1)

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

NA

77°F

25°C

Humidity 19%
Wind Speed SSW 4 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Heat Index77°F (25°C)
Last update 22 May 08:54 AM PDT
Detailed forecast for

Western San Gabriel Mountains and Highway 14 Corridor

Today
Partly cloudy in the morning then sunny. Highs from the mid 80s to around 90 at low elevations to the mid 70s to around 80 at high elevations. West winds 15 to 25 mph.
Tonight
Mostly clear. Lows in the upper 40s and 50s. West winds 15 to 25 mph with gusts to 40 mph.
Friday
Sunny. Highs from the mid 70s to around 80 at low elevations to the mid 60s to around 70 at high elevations. Southwest winds 15 to 25 mph. Gusts to 40 mph in the afternoon.
Friday Night
Mostly clear in the evening then partly cloudy. Lows in the mid 40s to lower 50s. Southwest winds 15 to 25 mph.
Saturday
Sunny. Highs from the lower to mid 70s at low elevations to the mid to upper 60s at high elevations. Southwest winds 15 to 25 mph.
Saturday Night
Mostly clear. Lows in the mid 40s to lower 50s.
Sunday
Sunny. Highs from the mid 70s to lower 80s at low elevations to the upper 60s to mid 70s at high elevations.
Sunday Night
Mostly clear except for patchy low clouds and fog after midnight. Lows in the upper 40s to mid 50s.
Memorial Day
Partly cloudy except for patchy low clouds and fog in the morning. Highs from the mid 70s to around 80 at low elevations to the mid 60s to around 70 at high elevations.
Monday Night
Partly cloudy. Lows in the upper 40s to mid 50s.
Tuesday
Partly cloudy in the morning then sunny. Highs from the 70s at low elevations to the mid to upper 60s at high elevations.
Tuesday Night
Mostly clear. Lows in the mid 40s to lower 50s.
Wednesday
Sunny. Highs from the 70s at low elevations to the mid 60s to around 70 at high elevations.



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325 AM PDT Thu May 22 2025
 
 

Additional Resources

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National Digital Forecast Database