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

48°F

9°C

Humidity 62%
Wind Speed N 4 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility NA
Wind Chill47°F (8°C)
Last update 25 Nov 10:59 PM PST
Extended Forecast for

11 Miles WSW Quartz Hill CA

  • Tonight

    Tonight: Clear, with a low around 40. Breezy, with a north northeast wind around 20 mph, with gusts as high as 30 mph.

    Low: 40 °F

    Clear and
    Breezy

  • Wednesday

    Wednesday: Sunny, with a high near 60. Breezy, with a northeast wind around 20 mph, with gusts as high as 30 mph.

    High: 60 °F

    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 43. Breezy, with a northeast wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 43 °F

    Mostly Cloudy
    and Breezy

  • Thanksgiving Day

    Thanksgiving Day: Partly sunny, with a high near 59. Northeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 59 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 45. North northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 45 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 56.

    High: 56 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

Detailed Forecast

Tonight
Clear, with a low around 40. Breezy, with a north northeast wind around 20 mph, with gusts as high as 30 mph.
Wednesday
Sunny, with a high near 60. Breezy, with a northeast wind around 20 mph, with gusts as high as 30 mph.
Wednesday Night
Mostly cloudy, with a low around 43. Breezy, with a northeast wind 15 to 20 mph, with gusts as high as 30 mph.
Thanksgiving Day
Partly sunny, with a high near 59. Northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday Night
Mostly clear, with a low around 45. North northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Friday
Sunny, with a high near 64.
Friday Night
Mostly clear, with a low around 42.
Saturday
Mostly sunny, with a high near 56.
Saturday Night
Partly cloudy, with a low around 39.
Sunday
A slight chance of showers. Mostly sunny, with a high near 53.
Sunday Night
Mostly clear, with a low around 39.
Monday
Sunny, with a high near 53.
Monday Night
Mostly clear, with a low around 39.
Tuesday
Mostly sunny, with a high near 56.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles WSW Quartz Hill CA
 34.63°N 118.39°W (Elev. 3228 ft)
Last Update:
7:51 pm PST Nov 25, 2025
Forecast Valid:
11pm PST Nov 25, 2025-6pm PST Dec 2, 2025
 
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