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

57°F

14°C

Humidity 21%
Wind Speed SSW 2 MPH
Barometer NA
Dewpoint 17°F (-8°C)
Visibility NA
Last update 09 Feb 04:59 AM PST
Extended Forecast for

7 Miles WSW Quartz Hill CA

  • Today

    Today: Partly sunny, with a high near 62. West northwest wind 5 to 15 mph becoming east northeast in the afternoon. Winds could gust as high as 20 mph.

    High: 62 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 50. East wind 5 to 10 mph becoming south southwest after midnight.

    Low: 50 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of rain after 4pm. Mostly cloudy, with a high near 51. Windy, with a south southwest wind 15 to 20 mph increasing to 25 to 30 mph in the afternoon. Winds could gust as high as 45 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 51 °F

    Mostly Cloudy
    and Breezy
    then Chance
    Rain and
    Windy

  • Tuesday Night

    Tuesday Night: Rain likely, mainly after 10pm. Mostly cloudy, with a low around 45. Windy, with a south southwest wind 25 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 45 °F

    Rain Likely
    and Windy

  • Wednesday

    Wednesday: A 50 percent chance of rain. Partly sunny, with a high near 47. Breezy, with a southwest wind around 20 mph, with gusts as high as 30 mph. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 47 °F

    Chance Rain
    and Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 50. Breezy.

    High: 50 °F

    Mostly Sunny
    and Breezy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 53.

    High: 53 °F

    Sunny

Detailed Forecast

Today
Partly sunny, with a high near 62. West northwest wind 5 to 15 mph becoming east northeast in the afternoon. Winds could gust as high as 20 mph.
Tonight
Mostly cloudy, with a low around 50. East wind 5 to 10 mph becoming south southwest after midnight.
Tuesday
A 30 percent chance of rain after 4pm. Mostly cloudy, with a high near 51. Windy, with a south southwest wind 15 to 20 mph increasing to 25 to 30 mph in the afternoon. Winds could gust as high as 45 mph. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Rain likely, mainly after 10pm. Mostly cloudy, with a low around 45. Windy, with a south southwest wind 25 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
A 50 percent chance of rain. Partly sunny, with a high near 47. Breezy, with a southwest wind around 20 mph, with gusts as high as 30 mph. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Partly cloudy, with a low around 38.
Thursday
Mostly sunny, with a high near 50. Breezy.
Thursday Night
Mostly clear, with a low around 39.
Friday
Sunny, with a high near 53.
Friday Night
Mostly clear, with a low around 40.
Saturday
Mostly sunny, with a high near 52.
Saturday Night
A slight chance of rain. Mostly cloudy, with a low around 40.
Sunday
Rain likely. Mostly cloudy, with a high near 44. Breezy.
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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:
1:41 am PST Feb 9, 2026
Forecast Valid:
6am PST Feb 9, 2026-6pm PST Feb 15, 2026
 
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Additional Resources

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