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

69°F

21°C

Humidity 21%
Wind Speed NNW 1 MPH
Barometer NA
Dewpoint 27°F (-3°C)
Visibility NA
Last update 11 Nov 07:59 AM PST
Extended Forecast for

5 Miles WSW Quartz Hill CA

  • Veterans Day

    Veterans Day: Partly sunny, with a high near 78. Southwest wind 5 to 10 mph.

    High: 78 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 59. Southwest wind around 10 mph, with gusts as high as 15 mph.

    Low: 59 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 68. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 68 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 52. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 52 °F

    Partly Cloudy
    and Breezy

  • Thursday

    Thursday: Showers likely, mainly after 10am. Partly sunny, with a high near 56. Windy, with a south southwest wind 25 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 56 °F

    Showers
    Likely and
    Windy

  • Thursday Night

    Thursday Night: Showers. Low around 50. Windy. Chance of precipitation is 90%.

    Low: 50 °F

    Showers and
    Windy

  • Friday

    Friday: A 40 percent chance of showers. Partly sunny, with a high near 50. Breezy.

    High: 50 °F

    Chance
    Showers and
    Breezy

  • Friday Night

    Friday Night: A chance of showers. Partly cloudy, with a low around 42. Breezy.

    Low: 42 °F

    Chance
    Showers and
    Breezy

  • Saturday

    Saturday: A slight chance of showers. Mostly sunny, with a high near 55.

    High: 55 °F

    Slight Chance
    Showers

Detailed Forecast

Veterans Day
Partly sunny, with a high near 78. Southwest wind 5 to 10 mph.
Tonight
Mostly cloudy, with a low around 59. Southwest wind around 10 mph, with gusts as high as 15 mph.
Wednesday
Partly sunny, with a high near 68. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 52. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Thursday
Showers likely, mainly after 10am. Partly sunny, with a high near 56. Windy, with a south southwest wind 25 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Showers. Low around 50. Windy. Chance of precipitation is 90%.
Friday
A 40 percent chance of showers. Partly sunny, with a high near 50. Breezy.
Friday Night
A chance of showers. Partly cloudy, with a low around 42. Breezy.
Saturday
A slight chance of showers. Mostly sunny, with a high near 55.
Saturday Night
A slight chance of showers. Partly cloudy, with a low around 44.
Sunday
Mostly sunny, with a high near 57.
Sunday Night
A slight chance of showers. Partly cloudy, with a low around 45.
Monday
A slight chance of showers. Mostly sunny, with a high near 54.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WSW Quartz Hill CA
 34.62°N 118.28°W (Elev. 3340 ft)
Last Update:
2:46 am PST Nov 11, 2025
Forecast Valid:
8am PST Nov 11, 2025-6pm PST Nov 17, 2025
 
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Additional Resources

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Chance of Precipitation