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

60°F

16°C

Humidity 32%
Wind Speed N 2 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Last update 19 Oct 06:59 AM PDT
Extended Forecast for

11 Miles W Quartz Hill CA

  • Today

    Today: Sunny, with a high near 73. North wind 5 to 10 mph becoming south southwest 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 73 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 53. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 53 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 70. Southwest wind 10 to 15 mph becoming south southeast in the morning. Winds could gust as high as 25 mph.

    High: 70 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 49. West southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 49 °F

    Mostly Clear

  • Wednesday

    Wednesday: Showers likely, mainly after 11am. Mostly cloudy, with a high near 62. Southwest wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 62 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Low around 45. Chance of precipitation is 80%.

    Low: 45 °F

    Showers

  • Thursday

    Thursday: A 40 percent chance of showers. Partly sunny, with a high near 58.

    High: 58 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 61. Breezy.

    High: 61 °F

    Sunny and
    Breezy then
    Sunny

Detailed Forecast

Today
Sunny, with a high near 73. North wind 5 to 10 mph becoming south southwest 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Tonight
Mostly clear, with a low around 53. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 70. Southwest wind 10 to 15 mph becoming south southeast in the morning. Winds could gust as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 49. West southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Wednesday
Showers likely, mainly after 11am. Mostly cloudy, with a high near 62. Southwest wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Showers and possibly a thunderstorm. Low around 45. Chance of precipitation is 80%.
Thursday
A 40 percent chance of showers. Partly sunny, with a high near 58.
Thursday Night
Partly cloudy, with a low around 42.
Friday
Sunny, with a high near 61. Breezy.
Friday Night
Clear, with a low around 42.
Saturday
Sunny, with a high near 64. Breezy.
Saturday Night
Mostly clear, with a low around 46.
Sunday
Sunny, with a high near 63. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles W Quartz Hill CA
 34.67°N 118.4°W (Elev. 3599 ft)
Last Update:
7:31 am PDT Oct 19, 2026
Forecast Valid:
7am PDT Oct 19, 2026-6pm PDT Oct 25, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation