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

51°F

11°C

Humidity 31%
Wind Speed W 5 MPH
Barometer NA
Dewpoint 21°F (-6°C)
Visibility NA
Last update 04 Feb 12:59 AM PST
Extended Forecast for

11 Miles WSW Quartz Hill CA

Wind Advisory until February 4, 02:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory until February 4, 02:00pm

    NOW until 2:00pm Wed

    Wind Advisory

  • Overnight

    Low: 49 °F

    Clear and
    Breezy

  • Wednesday

    Wednesday: Sunny, with a high near 68. Windy, with a northeast wind 20 to 30 mph, with gusts as high as 40 mph.

    High: 68 °F

    Sunny and
    Windy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 50. Breezy, with a northeast wind 20 to 25 mph, with gusts as high as 35 mph.

    Low: 50 °F

    Partly Cloudy
    and Breezy

  • Thursday

    Thursday: Partly sunny, with a high near 66. Breezy, with a northeast wind 20 to 25 mph, with gusts as high as 35 mph.

    High: 66 °F

    Partly Sunny
    and Breezy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 47. North northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 47 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 61.

    High: 61 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

Detailed Forecast

Overnight
Clear, with a low around 49. Breezy, with a northeast wind around 20 mph, with gusts as high as 30 mph.
Wednesday
Sunny, with a high near 68. Windy, with a northeast wind 20 to 30 mph, with gusts as high as 40 mph.
Wednesday Night
Partly cloudy, with a low around 50. Breezy, with a northeast wind 20 to 25 mph, with gusts as high as 35 mph.
Thursday
Partly sunny, with a high near 66. Breezy, with a northeast wind 20 to 25 mph, with gusts as high as 35 mph.
Thursday Night
Mostly cloudy, with a low around 47. North northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Friday
Partly sunny, with a high near 61.
Friday Night
Partly cloudy, with a low around 45.
Saturday
Sunny, with a high near 64.
Saturday Night
Mostly clear, with a low around 46.
Sunday
Sunny, with a high near 67.
Sunday Night
Mostly clear, with a low around 45.
Monday
Mostly sunny, with a high near 60. Breezy.
Monday Night
A slight chance of rain. Mostly cloudy, with a low around 41. Breezy.
Tuesday
A chance of rain. Partly sunny, with a high near 52. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles WSW Quartz Hill CA
 34.63°N 118.39°W (Elev. 3228 ft)
Last Update:
1:06 am PST Feb 4, 2026
Forecast Valid:
2am PST Feb 4, 2026-6pm PST Feb 10, 2026
 
Forecast Discussion
 
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