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

66°F

19°C

Humidity 47%
Wind Speed WNW 5 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Last update 13 Sep 12:59 AM PDT
Extended Forecast for

7 Miles WSW Quartz Hill CA

  • Overnight

    Overnight: Clear, with a low around 64. West northwest wind around 15 mph, with gusts as high as 20 mph.

    Low: 64 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 78. West wind around 15 mph, with gusts as high as 25 mph.

    High: 78 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 62. West northwest wind around 15 mph, with gusts as high as 25 mph.

    Low: 62 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 77. Breezy, with a west northwest wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 77 °F

    Sunny then
    Sunny and
    Breezy

  • Monday Night

    Monday Night: Clear, with a low around 60. Breezy, with a west southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 60 °F

    Clear and
    Breezy then
    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 72. Breezy.

    High: 72 °F

    Sunny then
    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 58. Breezy.

    Low: 58 °F

    Clear and
    Breezy then
    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 59. Breezy.

    Low: 59 °F

    Clear and
    Breezy then
    Clear

Detailed Forecast

Overnight
Clear, with a low around 64. West northwest wind around 15 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 78. West wind around 15 mph, with gusts as high as 25 mph.
Sunday Night
Clear, with a low around 62. West northwest wind around 15 mph, with gusts as high as 25 mph.
Monday
Sunny, with a high near 77. Breezy, with a west northwest wind 5 to 10 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 60. Breezy, with a west southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Tuesday
Sunny, with a high near 72. Breezy.
Tuesday Night
Mostly clear, with a low around 58. Breezy.
Wednesday
Sunny, with a high near 72.
Wednesday Night
Clear, with a low around 59. Breezy.
Thursday
Sunny, with a high near 78.
Thursday Night
Clear, with a low around 63.
Friday
Sunny, with a high near 83.
Friday Night
Clear, with a low around 66.
Saturday
Sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
7 Miles WSW Quartz Hill CA
 34.59°N 118.3°W (Elev. 4199 ft)
Last Update:
12:46 am PDT Sep 13, 2026
Forecast Valid:
2am PDT Sep 13, 2026-6pm PDT Sep 19, 2026
 
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Additional Resources

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