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

53°F

12°C

Humidity 30%
Wind Speed WSW 0 MPH
Barometer NA
Dewpoint 22°F (-6°C)
Visibility NA
Last update 02 Feb 12:59 AM PST
Extended Forecast for

11 Miles WSW Quartz Hill CA

  • Overnight

    Overnight: Clear, with a low around 45. North wind around 10 mph, with gusts as high as 15 mph.

    Low: 45 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 67. North northeast wind around 15 mph, with gusts as high as 20 mph.

    High: 67 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 46. North northeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 46 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 68. Breezy, with a northeast wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 68 °F

    Sunny then
    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: Clear, with a low around 45. Breezy, with a northeast wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 45 °F

    Clear and
    Breezy

  • Wednesday

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

    High: 68 °F

    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 47. Breezy.

    Low: 47 °F

    Mostly Clear
    and Breezy

  • Thursday

    Thursday: Mostly sunny, with a high near 67. Breezy.

    High: 67 °F

    Mostly Sunny
    and Breezy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

Detailed Forecast

Overnight
Clear, with a low around 45. North wind around 10 mph, with gusts as high as 15 mph.
Monday
Sunny, with a high near 67. North northeast wind around 15 mph, with gusts as high as 20 mph.
Monday Night
Clear, with a low around 46. North northeast wind around 10 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 68. Breezy, with a northeast wind 15 to 20 mph, with gusts as high as 30 mph.
Tuesday Night
Clear, with a low around 45. Breezy, with a northeast wind 15 to 20 mph, with gusts as high as 30 mph.
Wednesday
Sunny, with a high near 68. Breezy.
Wednesday Night
Mostly clear, with a low around 47. Breezy.
Thursday
Mostly sunny, with a high near 67. Breezy.
Thursday Night
Partly cloudy, with a low around 47.
Friday
Mostly sunny, with a high near 64.
Friday Night
Partly cloudy, with a low around 45.
Saturday
Sunny, with a high near 64.
Saturday Night
Mostly clear, with a low around 45.
Sunday
Sunny, with a high near 66.
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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:
1:06 am PST Feb 2, 2026
Forecast Valid:
1am PST Feb 2, 2026-6pm PST Feb 8, 2026
 
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