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

64°F

18°C

Humidity 36%
Wind Speed W 4 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Last update 07 Apr 08:59 AM PDT
Extended Forecast for

11 Miles W Quartz Hill CA

  • Today

    Today: Sunny, with a high near 72. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 72 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 52. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 52 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 72. Northwest wind around 10 mph, with gusts as high as 15 mph.

    High: 72 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 55. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 55 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Partly sunny, with a high near 68. West southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 68 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of rain after 11am. Mostly sunny, with a high near 61.

    High: 61 °F

    Slight Chance
    Rain

  • Friday Night

    Friday Night: A chance of rain and thunderstorms. Mostly cloudy, with a low around 48.

    Low: 48 °F

    Chance Rain

  • Saturday

    Saturday: A chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 53.

    High: 53 °F

    Rain Likely

Detailed Forecast

Today
Sunny, with a high near 72. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tonight
Clear, with a low around 52. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday
Sunny, with a high near 72. Northwest wind around 10 mph, with gusts as high as 15 mph.
Wednesday Night
Increasing clouds, with a low around 55. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday
Partly sunny, with a high near 68. West southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday Night
Partly cloudy, with a low around 49.
Friday
A 20 percent chance of rain after 11am. Mostly sunny, with a high near 61.
Friday Night
A chance of rain and thunderstorms. Mostly cloudy, with a low around 48.
Saturday
A chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 53.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 46.
Sunday
A chance of rain. Partly sunny, with a high near 53.
Sunday Night
A slight chance of rain. Partly cloudy, with a low around 43.
Monday
Mostly sunny, with a high near 56.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles W Quartz Hill CA
 34.65°N 118.43°W (Elev. 3832 ft)
Last Update:
4:57 am PDT Apr 7, 2026
Forecast Valid:
9am PDT Apr 7, 2026-6pm PDT Apr 13, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation