Hazardous Weather Conditions

Current conditions at

ACTON (ATNC1)

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

NA

64°F

18°C

Humidity 52%
Wind Speed NE 3 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility NA
Last update 04 Aug 01:54 AM PDT
Detailed forecast for

Western San Gabriel Mountains and Highway 14 Corridor

Today
Sunny. Highs from 92 to 102 at low elevations to the lower to mid 80s at high elevations. Southwest winds 15 to 25 mph in the afternoon.
Tonight
Clear. Lows in the 60s to lower 70s. Southwest winds 15 to 25 mph in the evening.
Wednesday
Sunny. Highs from 93 to 103 at low elevations to the upper 70s to mid 80s at high elevations. Southwest winds 15 to 25 mph in the afternoon.
Wednesday Night
Clear. Lows in the mid 60s to mid 70s except the lower to mid 60s colder valleys and slopes. Southwest winds 15 to 25 mph in the evening.
Thursday
Sunny. Highs from 93 to 103 at low elevations to the upper 70s to mid 80s at high elevations. Southwest winds around 15 mph in the afternoon.
Thursday Night
Clear. Lows in the 60s to lower 70s.
Friday
Sunny. Highs from 94 to 101 at low elevations to the mid 80s to lower 90s at high elevations.
Friday Night
Clear. Lows in the mid 60s to mid 70s.
Saturday
Sunny. Highs from 94 to 101 at low elevations to the mid 80s to lower 90s at high elevations.
Saturday Night
Clear. Lows in the mid 60s to mid 70s.
Sunday
Sunny. Highs from 92 to 100 at low elevations to the mid 80s to around 90 at high elevations.
Sunday Night
Mostly clear. Lows in the mid 60s to lower 70s.
Monday
Sunny. Highs from the upper 80s to mid 90s at low elevations to the upper 70s to mid 80s at high elevations.



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201 AM PDT Tue Aug 4 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database