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

58°F

14°C

Humidity 46%
Wind Speed SW 21 MPH
Barometer NA
Dewpoint 37°F (3°C)
Visibility NA
Last update 27 Sep 11:59 PM PDT
Extended Forecast for

11 Miles W Quartz Hill CA

  • Overnight

    Overnight: Clear, with a low around 54. West wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 54 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 72. 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: 72 °F

    Sunny then
    Sunny and
    Breezy

  • Monday Night

    Monday Night: Clear, with a low around 53. Breezy, with a northwest wind around 25 mph, with gusts as high as 40 mph.

    Low: 53 °F

    Clear and
    Breezy

  • Tuesday

    Tuesday: Sunny, with a high near 77. Windy, with a north northwest wind 25 to 30 mph decreasing to 15 to 20 mph in the morning. Winds could gust as high as 40 mph.

    High: 77 °F

    Sunny and
    Windy then
    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 57. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 57 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 61.

    Low: 61 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 65.

    Low: 65 °F

    Clear

Detailed Forecast

Overnight
Clear, with a low around 54. West wind 10 to 15 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 72. 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 53. Breezy, with a northwest wind around 25 mph, with gusts as high as 40 mph.
Tuesday
Sunny, with a high near 77. Windy, with a north northwest wind 25 to 30 mph decreasing to 15 to 20 mph in the morning. Winds could gust as high as 40 mph.
Tuesday Night
Clear, with a low around 57. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 82.
Wednesday Night
Clear, with a low around 61.
Thursday
Sunny, with a high near 85.
Thursday Night
Clear, with a low around 65.
Friday
Sunny, with a high near 85.
Friday Night
Clear, with a low around 66.
Saturday
Sunny, with a high near 85.
Saturday Night
Clear, with a low around 67.
Sunday
Sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles W Quartz Hill CA
 34.65°N 118.43°W (Elev. 3832 ft)
Last Update:
11:26 pm PDT Sep 27, 2026
Forecast Valid:
12am PDT Sep 28, 2026-6pm PDT Oct 4, 2026
 
Forecast Discussion
 
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Additional Resources

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