Current conditions at

GRASS MOUNTAIN (GMTC1)

Lat: 34.64078°NLon: 118.41435°WElev: 4626.0ft.

NA

65°F

18°C

Humidity 51%
Wind Speed SW 11 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility NA
Last update 19 Jul 01:59 AM PDT
Extended Forecast for

11 Miles WSW Quartz Hill CA

  • Overnight

    Overnight: Mostly clear, with a low around 63. West wind around 10 mph, with gusts as high as 15 mph.

    Low: 63 °F

    Mostly Clear

  • Sunday

    Sunday: 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

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 63. Breezy, with a west wind 10 to 20 mph, with gusts as high as 30 mph.

    Low: 63 °F

    Mostly Clear
    and Breezy
    then Partly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 84. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 84 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 63. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 63 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 65.

    Low: 65 °F

    Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 63. West wind around 10 mph, with gusts as high as 15 mph.
Sunday
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.
Sunday Night
Mostly clear, with a low around 63. Breezy, with a west wind 10 to 20 mph, with gusts as high as 30 mph.
Monday
Mostly sunny, with a high near 84. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
Mostly clear, with a low around 63. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday
Sunny, with a high near 87.
Tuesday Night
Mostly clear, with a low around 64.
Wednesday
Sunny, with a high near 90.
Wednesday Night
Clear, with a low around 65.
Thursday
Sunny, with a high near 92.
Thursday Night
Clear, with a low around 65.
Friday
Sunny, with a high near 89.
Friday Night
Mostly clear, with a low around 64.
Saturday
Sunny, with a high near 89.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles WSW Quartz Hill CA
 34.63°N 118.39°W (Elev. 3228 ft)
1:02 am PDT Jul 19, 2026
2am PDT Jul 19, 2026-6pm PDT Jul 25, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database