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

41°F

5°C

Humidity 48%
Wind Speed E 7 MPH
Barometer NA
Dewpoint 23°F (-5°C)
Visibility NA
Wind Chill36°F (2°C)
Last update 12 Jan 08:59 AM PST
Extended Forecast for

11 Miles W Quartz Hill CA

Wind Advisory January 12, 09:41am until January 12, 01:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory January 12, 09:41am until January 12, 01:00pm

    NOW until 1:00pm Mon

    Wind Advisory

  • Today

    High: 50 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: Clear, with a low around 42. Breezy, with a northeast wind 20 to 25 mph, with gusts as high as 30 mph.

    Low: 42 °F

    Clear and
    Breezy

  • Tuesday

    Tuesday: Sunny, with a high near 54. Breezy, with a northeast wind 20 to 25 mph, with gusts as high as 30 mph.

    High: 54 °F

    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: Clear, with a low around 46. Breezy, with a north northeast wind 15 to 20 mph, with gusts as high as 25 mph.

    Low: 46 °F

    Clear and
    Breezy then
    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 58. Northeast wind around 15 mph, with gusts as high as 20 mph.

    High: 58 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 48.

    Low: 48 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 47.

    Low: 47 °F

    Clear

Detailed Forecast

Today
Sunny, with a high near 50. Breezy, with a northeast wind 20 to 25 mph, with gusts as high as 35 mph.
Tonight
Clear, with a low around 42. Breezy, with a northeast wind 20 to 25 mph, with gusts as high as 30 mph.
Tuesday
Sunny, with a high near 54. Breezy, with a northeast wind 20 to 25 mph, with gusts as high as 30 mph.
Tuesday Night
Clear, with a low around 46. Breezy, with a north northeast wind 15 to 20 mph, with gusts as high as 25 mph.
Wednesday
Sunny, with a high near 58. Northeast wind around 15 mph, with gusts as high as 20 mph.
Wednesday Night
Clear, with a low around 48.
Thursday
Sunny, with a high near 57.
Thursday Night
Clear, with a low around 47.
Friday
Sunny, with a high near 55.
Friday Night
Mostly clear, with a low around 46.
Saturday
Sunny, with a high near 55.
Saturday Night
Mostly clear, with a low around 45.
Sunday
Mostly 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:
8:01 am PST Jan 12, 2026
Forecast Valid:
9am PST Jan 12, 2026-6pm PST Jan 18, 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