Current conditions at

ACTON (ATNC1)

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

NA

81°F

27°C

Humidity 33%
Wind Speed WNW 8 MPH
Barometer NA
Dewpoint 49°F (9°C)
Visibility NA
Heat Index80°F (27°C)
Last update 01 Oct 03:54 PM PDT
Detailed forecast for

Western San Gabriel Mountains and Highway 14 Corridor

Tonight
Clear. Lows in the upper 40s and 50s. Southwest winds around 15 mph in the evening.
Thursday
Sunny. Highs from the mid 70s to around 80 at low elevations to the mid 60s to lower 70s at high elevations. Southwest winds 15 to 25 mph in the afternoon.
Thursday Night
Clear. Lows in the upper 40s and 50s. Southwest winds 15 to 25 mph.
Friday
Sunny. Highs from the upper 60s to mid 70s at low elevations to the lower to mid 60s at high elevations. West winds 15 to 25 mph.
Friday Night
Mostly clear. Lows in the mid 40s to lower 50s. Northwest winds 20 to 30 mph with gusts to 45 mph.
Saturday
Sunny. Highs from the 70s at low elevations to the mid 60s to around 70 at high elevations.
Saturday Night
Clear. Lows in the upper 40s to mid 50s.
Sunday
Sunny. Highs from the 70s at low elevations to the mid 60s to around 70 at high elevations.
Sunday Night
Clear except for patchy low clouds and fog after midnight. Lows in the mid 40s to mid 50s.
Monday
Sunny except for patchy low clouds and fog in the morning. Highs from the upper 60s to mid 70s at low elevations to the upper 50s to mid 60s at high elevations.
Monday Night
Clear. Lows in the mid 40s to mid 50s.
Tuesday
Sunny. Highs from the 70s at low elevations to the 60s at high elevations.
Tuesday Night
Clear. Lows in the upper 40s to mid 50s.
Wednesday
Sunny. Highs from the mid 70s to lower 80s at low elevations to around 70 at high elevations.



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333 PM PDT Wed Oct 1 2025
 
 

Additional Resources

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Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database