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

53°F

12°C

Humidity 25%
Wind Speed NNE 0 MPH
Barometer NA
Dewpoint 18°F (-8°C)
Visibility NA
Last update 02 Dec 09:59 AM PST
Extended Forecast for

11 Miles WSW Quartz Hill CA

Wind Advisory December 3, 06:00am until December 4, 03:00pm
Click here for hazard details and duration
Wind Advisory

  • Today

    Today: Mostly sunny, with a high near 58. North northeast wind 5 to 10 mph becoming west in the afternoon.

    High: 58 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 38. Breezy, with a west southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 38 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 53. Breezy, with an east northeast wind 20 to 25 mph, with gusts as high as 40 mph.

    High: 53 °F

    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 36. Wind chill values as low as 25. Breezy, with a northeast wind 20 to 25 mph, with gusts as high as 40 mph.

    Low: 36 °F

    Mostly Clear
    and Breezy

  • Thursday

    Thursday: Sunny, with a high near 52. Breezy, with a northeast wind 15 to 25 mph, with gusts as high as 35 mph.

    High: 52 °F

    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 58. North northeast wind 5 to 10 mph becoming west in the afternoon.
Tonight
Partly cloudy, with a low around 38. Breezy, with a west southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Wednesday
Sunny, with a high near 53. Breezy, with an east northeast wind 20 to 25 mph, with gusts as high as 40 mph.
Wednesday Night
Mostly clear, with a low around 36. Wind chill values as low as 25. Breezy, with a northeast wind 20 to 25 mph, with gusts as high as 40 mph.
Thursday
Sunny, with a high near 52. Breezy, with a northeast wind 15 to 25 mph, with gusts as high as 35 mph.
Thursday Night
Mostly clear, with a low around 37.
Friday
Sunny, with a high near 57.
Friday Night
Mostly clear, with a low around 42.
Saturday
Sunny, with a high near 62.
Saturday Night
Mostly clear, with a low around 41.
Sunday
Sunny, with a high near 61.
Sunday Night
Mostly clear, with a low around 43.
Monday
Sunny, with a high near 60.
Basemap Options
Click map to change the forecast location
Loading map...
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:
10:47 am PST Dec 2, 2025
Forecast Valid:
11am PST Dec 2, 2025-6pm PST Dec 8, 2025
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation