National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

GRASS MOUNTAIN (GMTC1)

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

NA

48°F

9°C

Humidity 30%
Wind Speed NNE 0 MPH
Barometer NA
Dewpoint 18°F (-8°C)
Visibility NA
Last update 03 Dec 03:59 PM PST
Extended Forecast for

11 Miles WSW Quartz Hill CA

Wind Advisory December 3, 04:57pm until December 4, 03:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory December 3, 04:57pm until December 4, 03:00pm

    NOW until 3:00pm Thu

    Wind Advisory

  • This Afternoon

    High: 54 °F

    Mostly Sunny
    and Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 34. Wind chill values as low as 25. Breezy, with a northeast wind 20 to 25 mph, with gusts as high as 30 mph.

    Low: 34 °F

    Mostly Clear
    and Breezy

  • Thursday

    Thursday: Sunny, with a high near 54. Wind chill values as low as 20 early. Breezy, with a northeast wind 20 to 25 mph, with gusts as high as 35 mph.

    High: 54 °F

    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: Clear, with a low around 37. Wind chill values as low as 30. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 37 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 60. Northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 60 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 41.

    Low: 41 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 42.

    Low: 42 °F

    Clear

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 54. Breezy, with a northeast wind around 20 mph, with gusts as high as 30 mph.
Tonight
Mostly clear, with a low around 34. Wind chill values as low as 25. Breezy, with a northeast wind 20 to 25 mph, with gusts as high as 30 mph.
Thursday
Sunny, with a high near 54. Wind chill values as low as 20 early. Breezy, with a northeast wind 20 to 25 mph, with gusts as high as 35 mph.
Thursday Night
Clear, with a low around 37. Wind chill values as low as 30. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Friday
Sunny, with a high near 60. Northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Friday Night
Clear, with a low around 41.
Saturday
Sunny, with a high near 62.
Saturday Night
Clear, with a low around 42.
Sunday
Sunny, with a high near 61.
Sunday Night
Clear, with a low around 44.
Monday
Sunny, with a high near 61.
Monday Night
Clear, with a low around 45.
Tuesday
Sunny, with a high near 63.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles WSW Quartz Hill CA
 34.63°N 118.39°W (Elev. 3228 ft)
Last Update:
3:27 pm PST Dec 3, 2025
Forecast Valid:
4pm PST Dec 3, 2025-6pm PST Dec 9, 2025
 
Forecast Discussion
 
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