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

GRASS MOUNTAIN (GMTC1)

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

NA

63°F

17°C

Humidity 41%
Wind Speed S 18 MPH
Barometer NA
Dewpoint 39°F (4°C)
Visibility NA
Last update 08 Oct 05:59 PM PDT
Extended Forecast for

11 Miles W Quartz Hill CA

  • Tonight

    Tonight: Clear, with a low around 51. West southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 51 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 78. South southwest wind 5 to 15 mph becoming east southeast in the morning. Winds could gust as high as 20 mph.

    High: 78 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 58. South southwest wind 5 to 15 mph becoming west after midnight. Winds could gust as high as 25 mph.

    Low: 58 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 79. Breezy, with a north wind 10 to 15 mph becoming south southwest 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 79 °F

    Sunny then
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 52. Breezy, with a west northwest wind 20 to 25 mph, with gusts as high as 35 mph.

    Low: 52 °F

    Mostly Clear
    and Breezy

  • Saturday

    Saturday: Sunny, with a high near 68. Breezy.

    High: 68 °F

    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Clear, with a low around 46. Windy.

    Low: 46 °F

    Clear and
    Windy

  • Sunday

    Sunday: Sunny, with a high near 68. Breezy.

    High: 68 °F

    Sunny and
    Breezy then
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 51. West southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday
Sunny, with a high near 78. South southwest wind 5 to 15 mph becoming east southeast in the morning. Winds could gust as high as 20 mph.
Thursday Night
Mostly clear, with a low around 58. South southwest wind 5 to 15 mph becoming west after midnight. Winds could gust as high as 25 mph.
Friday
Sunny, with a high near 79. Breezy, with a north wind 10 to 15 mph becoming south southwest 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Friday Night
Mostly clear, with a low around 52. Breezy, with a west northwest wind 20 to 25 mph, with gusts as high as 35 mph.
Saturday
Sunny, with a high near 68. Breezy.
Saturday Night
Clear, with a low around 46. Windy.
Sunday
Sunny, with a high near 68. Breezy.
Sunday Night
Mostly clear, with a low around 47.
Columbus Day
Sunny, with a high near 64.
Monday Night
Partly cloudy, with a low around 46. Breezy.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 57.
Tuesday Night
A slight chance of showers. Partly cloudy, with a low around 44.
Wednesday
Sunny, with a high near 60.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles W Quartz Hill CA
 34.67°N 118.4°W (Elev. 3599 ft)
Last Update:
2:07 pm PDT Oct 8, 2025
Forecast Valid:
6pm PDT Oct 8, 2025-6pm PDT Oct 15, 2025
 
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