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

48°F

9°C

Humidity 31%
Wind Speed W 3 MPH
Barometer NA
Dewpoint 19°F (-7°C)
Visibility NA
Last update 15 Apr 01:59 AM PDT
Extended Forecast for

11 Miles W Quartz Hill CA

  • Overnight

    Overnight: Clear, with a low around 44. West northwest wind around 10 mph.

    Low: 44 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 62. Northwest wind 10 to 15 mph becoming southwest in the morning. Winds could gust as high as 20 mph.

    High: 62 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 48. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 48 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 62. Breezy, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 62 °F

    Sunny then
    Mostly Sunny
    and Breezy

  • Thursday Night

    Thursday Night: Clear, with a low around 41. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 41 °F

    Clear and
    Breezy then
    Clear

  • Friday

    Friday: Sunny, with a high near 60. Breezy.

    High: 60 °F

    Sunny and
    Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

Detailed Forecast

Overnight
Clear, with a low around 44. West northwest wind around 10 mph.
Wednesday
Sunny, with a high near 62. Northwest wind 10 to 15 mph becoming southwest in the morning. Winds could gust as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 48. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday
Mostly sunny, with a high near 62. Breezy, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Thursday Night
Clear, with a low around 41. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Friday
Sunny, with a high near 60. Breezy.
Friday Night
Mostly clear, with a low around 45.
Saturday
Mostly sunny, with a high near 68.
Saturday Night
Partly cloudy, with a low around 49.
Sunday
Mostly sunny, with a high near 70.
Sunday Night
Mostly clear, with a low around 46.
Monday
Sunny, with a high near 64.
Monday Night
A slight chance of rain. Partly cloudy, with a low around 46.
Tuesday
A slight chance of rain. Mostly sunny, with a high near 61.
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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:
11:27 pm PDT Apr 14, 2026
Forecast Valid:
2am PDT Apr 15, 2026-6pm PDT Apr 21, 2026
 
Forecast Discussion
 
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Additional Resources

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