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

55°F

13°C

Humidity 77%
Wind Speed SW 12 MPH
Barometer NA
Dewpoint 48°F (9°C)
Visibility NA
Last update 20 Jun 08:59 PM PDT
Extended Forecast for

9 Miles W Quartz Hill CA

  • Tonight

    Tonight: Clear, with a low around 59. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 59 °F

    Clear and
    Breezy then
    Clear

  • Sunday

    Sunday: Sunny, with a high near 84. Breezy, with a west southwest wind 10 to 15 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 35 mph.

    High: 84 °F

    Sunny then
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Clear, with a low around 61. Breezy, with a west southwest wind 20 to 25 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 35 mph.

    Low: 61 °F

    Clear and
    Breezy then
    Clear

  • Monday

    Monday: Sunny, with a high near 90. Breezy, with a south southwest wind 10 to 15 mph increasing to 15 to 20 mph in the morning. Winds could gust as high as 30 mph.

    High: 90 °F

    Sunny and
    Breezy

  • Monday Night

    Monday Night: Clear, with a low around 65. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 30 mph.

    Low: 65 °F

    Clear and
    Breezy then
    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 67. Breezy.

    Low: 67 °F

    Mostly Clear
    and Breezy
    then Clear

  • Wednesday

    Wednesday: Sunny, with a high near 89. Breezy.

    High: 89 °F

    Sunny then
    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 67. Breezy.

    Low: 67 °F

    Mostly Clear
    and Breezy
    then Clear

Detailed Forecast

Tonight
Clear, with a low around 59. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday
Sunny, with a high near 84. Breezy, with a west southwest wind 10 to 15 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 35 mph.
Sunday Night
Clear, with a low around 61. Breezy, with a west southwest wind 20 to 25 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 35 mph.
Monday
Sunny, with a high near 90. Breezy, with a south southwest wind 10 to 15 mph increasing to 15 to 20 mph in the morning. Winds could gust as high as 30 mph.
Monday Night
Clear, with a low around 65. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 30 mph.
Tuesday
Sunny, with a high near 93.
Tuesday Night
Mostly clear, with a low around 67. Breezy.
Wednesday
Sunny, with a high near 89. Breezy.
Wednesday Night
Mostly clear, with a low around 67. Breezy.
Thursday
Sunny, with a high near 88. Breezy.
Thursday Night
Clear, with a low around 64. Breezy.
Friday
Sunny, with a high near 85. Breezy.
Friday Night
Clear, with a low around 62. Breezy.
Saturday
Sunny, with a high near 84. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
9 Miles W Quartz Hill CA
 34.67°N 118.38°W (Elev. 3573 ft)
Last Update:
11:27 am PDT Jun 20, 2026
Forecast Valid:
9pm PDT Jun 20, 2026-6pm PDT Jun 27, 2026
 
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