National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

GRASS MOUNTAIN (GMTC1)

Lat: 34.64078°NLon: 118.41435°WElev: 4626.0ft.

NA

45°F

7°C

Humidity 39%
Wind Speed E 4 MPH
Barometer NA
Dewpoint 21°F (-6°C)
Visibility NA
Wind Chill43°F (6°C)
Last update 10 Jan 02:59 PM PST
Extended Forecast for

9 Miles W Quartz Hill CA

Wind Advisory January 10, 03:19pm until January 11, 01:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory January 10, 03:19pm until January 11, 01:00pm

    NOW until 1:00pm Sun

    Wind Advisory

  • This Afternoon

    High: 49 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 35. Wind chill values as low as 25. East northeast wind around 15 mph, with gusts as high as 20 mph.

    Low: 35 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 52. Wind chill values as low as 25 early. Breezy, with an east wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 52 °F

    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 38. Wind chill values as low as 30. East northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 38 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 55. Breezy, with an east southeast wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 55 °F

    Sunny then
    Sunny and
    Breezy

  • Monday Night

    Monday Night: Clear, with a low around 40.

    Low: 40 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 59. Breezy.

    High: 59 °F

    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: Clear, with a low around 45.

    Low: 45 °F

    Clear

Detailed Forecast

This Afternoon
Sunny, with a high near 49. Breezy, with an east southeast wind around 25 mph, with gusts as high as 40 mph.
Tonight
Mostly clear, with a low around 35. Wind chill values as low as 25. East northeast wind around 15 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 52. Wind chill values as low as 25 early. Breezy, with an east wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Mostly clear, with a low around 38. Wind chill values as low as 30. East northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 55. Breezy, with an east southeast wind 15 to 20 mph, with gusts as high as 30 mph.
Monday Night
Clear, with a low around 40.
Tuesday
Sunny, with a high near 59. Breezy.
Tuesday Night
Clear, with a low around 45.
Wednesday
Sunny, with a high near 62.
Wednesday Night
Clear, with a low around 47. Breezy.
Thursday
Sunny, with a high near 63.
Thursday Night
Mostly clear, with a low around 46.
Friday
Sunny, with a high near 63.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
9 Miles W Quartz Hill CA
 34.65°N 118.37°W (Elev. 3396 ft)
Last Update:
1:07 pm PST Jan 10, 2026
Forecast Valid:
3pm PST Jan 10, 2026-6pm PST Jan 16, 2026
 
Forecast Discussion
 
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