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

39°F

4°C

Humidity 99%
Wind Speed NNE 7 MPH
Barometer NA
Dewpoint 39°F (4°C)
Visibility NA
Wind Chill34°F (1°C)
Last update 22 Apr 01:59 AM PDT
Extended Forecast for

11 Miles W Quartz Hill CA

  • Overnight

    Overnight: Partly cloudy, with a low around 41. West northwest wind around 15 mph, with gusts as high as 20 mph.

    Low: 41 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 59. West northwest wind around 15 mph, with gusts as high as 25 mph.

    High: 59 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 42. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 42 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Thursday

    Thursday: Sunny, with a high near 66. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 66 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 46. West northwest wind 5 to 10 mph.

    Low: 46 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 55.

    High: 55 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 42. Breezy.

    Low: 42 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 41. West northwest wind around 15 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 59. West northwest wind around 15 mph, with gusts as high as 25 mph.
Wednesday Night
Mostly clear, with a low around 42. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Thursday
Sunny, with a high near 66. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday Night
Partly cloudy, with a low around 46. West northwest wind 5 to 10 mph.
Friday
Mostly sunny, with a high near 65.
Friday Night
Partly cloudy, with a low around 46.
Saturday
Partly sunny, with a high near 55.
Saturday Night
Mostly cloudy, with a low around 42. Breezy.
Sunday
Mostly sunny, with a high near 57.
Sunday Night
Partly cloudy, with a low around 43.
Monday
Mostly sunny, with a high near 60.
Monday Night
Partly cloudy, with a low around 43.
Tuesday
A slight chance of rain. Mostly sunny, with a high near 61.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles W Quartz Hill CA
 34.65°N 118.43°W (Elev. 3832 ft)
Last Update:
2:16 am PDT Apr 22, 2026
Forecast Valid:
2am PDT Apr 22, 2026-6pm PDT Apr 28, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation