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

51°F

11°C

Humidity 30%
Wind Speed E 0 MPH
Barometer NA
Dewpoint 20°F (-7°C)
Visibility NA
Last update 14 Jan 03:59 AM PST
Extended Forecast for

11 Miles W Quartz Hill CA

Wind Advisory January 14, 05:12am until January 14, 02:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory January 14, 05:12am until January 14, 02:00pm

    NOW until 2:00pm Wed

    Wind Advisory

  • Today

    High: 58 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 49. Breezy, with a north northeast wind 20 to 25 mph, with gusts as high as 40 mph.

    Low: 49 °F

    Mostly Clear
    and Breezy

  • Thursday

    Thursday: Sunny, with a high near 60. Breezy, with a northeast wind around 20 mph, with gusts as high as 30 mph.

    High: 60 °F

    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 42. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 42 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 59. Northeast wind around 15 mph, with gusts as high as 20 mph.

    High: 59 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

Detailed Forecast

Today
Sunny, with a high near 58. Breezy, with a northeast wind 15 to 25 mph, with gusts as high as 40 mph.
Tonight
Mostly clear, with a low around 49. Breezy, with a north northeast wind 20 to 25 mph, with gusts as high as 40 mph.
Thursday
Sunny, with a high near 60. Breezy, with a northeast wind around 20 mph, with gusts as high as 30 mph.
Thursday Night
Mostly clear, with a low around 42. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Friday
Sunny, with a high near 59. Northeast wind around 15 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around 43.
Saturday
Sunny, with a high near 58.
Saturday Night
Mostly clear, with a low around 45.
Sunday
Sunny, with a high near 59.
Sunday Night
Mostly clear, with a low around 45.
M.L.King Day
Sunny, with a high near 59.
Monday Night
Mostly clear, with a low around 44.
Tuesday
Sunny, with a high near 59.
Basemap Options
Click map to change the forecast location
Loading map...
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:
2:26 am PST Jan 14, 2026
Forecast Valid:
5am PST Jan 14, 2026-6pm PST Jan 20, 2026
 
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