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 53%
Wind Speed WSW 12 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Last update 21 Jun 01:59 AM PDT
Extended Forecast for

7 Miles WSW Quartz Hill CA

  • Overnight

    Overnight: Clear, with a low around 56. West wind around 15 mph, with gusts as high as 20 mph.

    Low: 56 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 78. Breezy, with a west wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 78 °F

    Sunny then
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Clear, with a low around 63. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 63 °F

    Clear and
    Breezy then
    Clear

  • Monday

    Monday: Sunny, with a high near 84. Breezy, with a west wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 84 °F

    Sunny then
    Sunny and
    Breezy

  • Monday Night

    Monday Night: Clear, with a low around 68. West southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 68 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 71. Breezy.

    Low: 71 °F

    Clear and
    Breezy then
    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 88. Breezy.

    High: 88 °F

    Sunny then
    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Clear, with a low around 69. Breezy.

    Low: 69 °F

    Mostly Clear
    and Breezy
    then Clear

Detailed Forecast

Overnight
Clear, with a low around 56. West wind around 15 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 78. Breezy, with a west wind 10 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Clear, with a low around 63. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Monday
Sunny, with a high near 84. Breezy, with a west wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Monday Night
Clear, with a low around 68. West southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday
Sunny, with a high near 88.
Tuesday Night
Clear, with a low around 71. Breezy.
Wednesday
Sunny, with a high near 88. Breezy.
Wednesday Night
Clear, with a low around 69. Breezy.
Thursday
Sunny, with a high near 82. Breezy.
Thursday Night
Clear, with a low around 65. Breezy.
Friday
Sunny, with a high near 79. Breezy.
Friday Night
Clear, with a low around 60. Breezy.
Saturday
Sunny, with a high near 74. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles WSW Quartz Hill CA
 34.61°N 118.34°W (Elev. 4321 ft)
Last Update:
11:31 pm PDT Jun 20, 2026
Forecast Valid:
2am PDT Jun 21, 2026-6pm PDT Jun 27, 2026
 
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