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

40°F

4°C

Humidity 65%
Wind Speed N 4 MPH
Barometer NA
Dewpoint 29°F (-2°C)
Visibility NA
Wind Chill37°F (3°C)
Last update 12 Feb 09:59 PM PST
Extended Forecast for

11 Miles W Quartz Hill CA

  • Tonight

    Tonight: Clear, with a low around 40. North wind around 15 mph, with gusts as high as 20 mph.

    Low: 40 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 56. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 56 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 42. Northwest wind 5 to 15 mph.

    Low: 42 °F

    Clear

  • Saturday

    Saturday: Increasing clouds, with a high near 55. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 55 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 42. Southwest wind around 10 mph, with gusts as high as 15 mph.

    Low: 42 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 20 percent chance of rain after 10am. Partly sunny, with a high near 50. Breezy.

    High: 50 °F

    Slight Chance
    Rain and
    Breezy

  • Sunday Night

    Sunday Night: Rain likely, mainly after 4am. Mostly cloudy, with a low around 41. Breezy. Chance of precipitation is 60%.

    Low: 41 °F

    Rain Likely
    and Breezy

  • Washington's Birthday

    Washington's Birthday: Rain. Cloudy, with a high near 42. Breezy.

    High: 42 °F

    Rain and
    Breezy

  • Monday Night

    Monday Night: Rain. Cloudy, with a low around 39. Breezy.

    Low: 39 °F

    Rain and
    Breezy

Detailed Forecast

Tonight
Clear, with a low around 40. North wind around 15 mph, with gusts as high as 20 mph.
Friday
Sunny, with a high near 56. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Friday Night
Clear, with a low around 42. Northwest wind 5 to 15 mph.
Saturday
Increasing clouds, with a high near 55. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday Night
Mostly cloudy, with a low around 42. Southwest wind around 10 mph, with gusts as high as 15 mph.
Sunday
A 20 percent chance of rain after 10am. Partly sunny, with a high near 50. Breezy.
Sunday Night
Rain likely, mainly after 4am. Mostly cloudy, with a low around 41. Breezy. Chance of precipitation is 60%.
Washington's Birthday
Rain. Cloudy, with a high near 42. Breezy.
Monday Night
Rain. Cloudy, with a low around 39. Breezy.
Tuesday
Rain. Cloudy, with a high near 43. Breezy.
Tuesday Night
Rain and snow likely. Mostly cloudy, with a low around 36. Breezy.
Wednesday
A chance of rain and snow. Partly sunny, with a high near 42.
Wednesday Night
A chance of rain and snow. Mostly cloudy, with a low around 36.
Thursday
A chance of rain and snow. Partly sunny, with a high near 44. Breezy.
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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:
7:26 pm PST Feb 12, 2026
Forecast Valid:
10pm PST Feb 12, 2026-6pm PST Feb 19, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation