Current conditions at

ACTON (ATNC1)

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

NA

89°F

32°C

Humidity 25%
Wind Speed W 10 MPH
Barometer NA
Dewpoint 49°F (9°C)
Visibility NA
Heat Index86°F (30°C)
Last update 13 Jun 05:54 PM PDT
Detailed forecast for

Western San Gabriel Mountains and Highway 14 Corridor

Tonight
Mostly clear. Lows in the mid 50s to mid 60s. West winds 15 to 25 mph with gusts to 35 mph.
Saturday
Sunny. Patchy fog in the morning. Highs from the upper 80s to mid 90s at low elevations to the lower to mid 80s at high elevations. Northwest winds 15 to 25 mph shifting to the southwest in the afternoon.
Saturday Night
Mostly clear. Lows in the upper 50s to mid 60s. Southwest winds around 15 mph in the evening.
Sunday
Sunny. Highs from the lower to mid 90s at low elevations to the 80s at high elevations. Southwest winds 15 to 25 mph in the afternoon.
Sunday Night
Clear. Lows in the upper 50s to mid 60s. Southwest winds 15 to 25 mph.
Monday
Sunny. Highs from around 90 at low elevations to the upper 70s to mid 80s at high elevations.
Monday Night
Clear. Lows in the mid 50s to mid 60s.
Tuesday
Sunny. Highs from around 90 at low elevations to the lower to mid 80s at high elevations.
Tuesday Night
Clear. Lows in the upper 50s to mid 60s.
Wednesday
Sunny. Highs from the lower to mid 90s at low elevations to the 80s at high elevations.
Wednesday Night
Clear. Lows in the lower to mid 60s.
Juneteenth
Sunny. Highs from around 90 at low elevations to the upper 70s to mid 80s at high elevations.
Thursday Night
Clear. Lows in the upper 50s to mid 60s.
Friday
Sunny. Highs from the mid 80s to around 90 at low elevations to around 80 at high elevations.



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213 PM PDT Fri Jun 13 2025
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database