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

58°F

14°C

Humidity 37%
Wind Speed NNE 7 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Last update 16 Oct 01:59 AM PDT
Extended Forecast for

11 Miles WSW Quartz Hill CA

Red Flag Warning October 16, 02:40am until October 17, 08:00pm
High Wind Warning October 16, 02:40am until October 16, 08:00pm
Click here for hazard details and duration
Red Flag Warning
High Wind Warning
  •  
    Red Flag Warning October 16, 02:40am until October 17, 08:00pm
    High Wind Warning October 16, 02:40am until October 16, 08:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Overnight

    Low: 59 °F

    Clear and
    Windy

  • Friday

    Friday: Sunny, with a high near 79. Very windy, with an east northeast wind 35 to 40 mph, with gusts as high as 60 mph.

    High: 79 °F

    Sunny and
    Very Windy

  • Friday Night

    Friday Night: Mostly clear, with a low around 59. Windy, with an east northeast wind 30 to 35 mph, with gusts as high as 50 mph.

    Low: 59 °F

    Mostly Clear
    and Windy

  • Saturday

    Saturday: Sunny, with a high near 79. Windy, with an east northeast wind 25 to 35 mph, with gusts as high as 50 mph.

    High: 79 °F

    Sunny and
    Windy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 54. Breezy, with a north northeast wind 10 to 20 mph, with gusts as high as 30 mph.

    Low: 54 °F

    Mostly Clear
    and Breezy
    then Clear

  • Sunday

    Sunday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 55.

    Low: 55 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

Detailed Forecast

Overnight
Clear, with a low around 59. Windy, with a northeast wind around 30 mph, with gusts as high as 50 mph.
Friday
Sunny, with a high near 79. Very windy, with an east northeast wind 35 to 40 mph, with gusts as high as 60 mph.
Friday Night
Mostly clear, with a low around 59. Windy, with an east northeast wind 30 to 35 mph, with gusts as high as 50 mph.
Saturday
Sunny, with a high near 79. Windy, with an east northeast wind 25 to 35 mph, with gusts as high as 50 mph.
Saturday Night
Mostly clear, with a low around 54. Breezy, with a north northeast wind 10 to 20 mph, with gusts as high as 30 mph.
Sunday
Sunny, with a high near 79.
Sunday Night
Clear, with a low around 55.
Monday
Sunny, with a high near 76.
Monday Night
Mostly clear, with a low around 50.
Tuesday
A slight chance of showers after 11am. Mostly sunny, with a high near 63. Breezy.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 46.
Wednesday
Showers likely. Partly sunny, with a high near 59.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 43.
Thursday
A slight chance of showers. Mostly sunny, with a high near 60.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles WSW Quartz Hill CA
 34.58°N 118.39°W (Elev. 2897 ft)
Last Update:
2:21 am PDT Oct 16, 2026
Forecast Valid:
2am PDT Oct 16, 2026-6pm PDT Oct 22, 2026
 
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