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

68°F

20°C

Humidity 20%
Wind Speed N 6 MPH
Barometer NA
Dewpoint 25°F (-4°C)
Visibility NA
Last update 15 Oct 05:59 PM PDT
Extended Forecast for

6 Miles WSW Quartz Hill CA

Red Flag Warning October 15, 06:30pm until October 17, 08:00pm
Click here for hazard details and duration
Red Flag Warning
  •  
    Red Flag Warning October 15, 06:30pm until October 17, 08:00pm

    NOW until 8:00pm Sat

    Red Flag Warning

  • Tonight

    Low: 61 °F

    Clear and
    Windy

  • Friday

    Friday: Sunny, with a high near 70. Windy, with an east northeast wind 30 to 35 mph, with gusts as high as 55 mph.

    High: 70 °F

    Sunny and
    Windy

  • Friday Night

    Friday Night: Mostly clear, with a low around 62. Windy, with an east northeast wind 25 to 30 mph, with gusts as high as 45 mph.

    Low: 62 °F

    Mostly Clear
    and Windy

  • Saturday

    Saturday: Sunny, with a high near 74. Breezy, with an east northeast wind around 25 mph, with gusts as high as 40 mph.

    High: 74 °F

    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Clear, with a low around 58. Breezy, with an east northeast wind 10 to 20 mph, with gusts as high as 30 mph.

    Low: 58 °F

    Clear and
    Breezy then
    Clear

  • Sunday

    Sunday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 56.

    Low: 56 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

Detailed Forecast

Tonight
Clear, with a low around 61. Windy, with a northeast wind around 30 mph, with gusts as high as 45 mph.
Friday
Sunny, with a high near 70. Windy, with an east northeast wind 30 to 35 mph, with gusts as high as 55 mph.
Friday Night
Mostly clear, with a low around 62. Windy, with an east northeast wind 25 to 30 mph, with gusts as high as 45 mph.
Saturday
Sunny, with a high near 74. Breezy, with an east northeast wind around 25 mph, with gusts as high as 40 mph.
Saturday Night
Clear, with a low around 58. Breezy, with an east northeast wind 10 to 20 mph, with gusts as high as 30 mph.
Sunday
Sunny, with a high near 73.
Sunday Night
Clear, with a low around 56.
Monday
Sunny, with a high near 72.
Monday Night
Clear, with a low around 52. Breezy.
Tuesday
Mostly sunny, with a high near 60. Breezy.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 48. Breezy.
Wednesday
A chance of showers. Partly sunny, with a high near 55.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 46.
Thursday
A slight chance of showers. Sunny, with a high near 57.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles WSW Quartz Hill CA
 34.62°N 118.31°W (Elev. 3599 ft)
Last Update:
11:31 am PDT Oct 15, 2026
Forecast Valid:
6pm PDT Oct 15, 2026-6pm PDT Oct 22, 2026
 
Forecast Discussion
 
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