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

61°F

16°C

Humidity 27%
Wind Speed ESE 3 MPH
Barometer NA
Dewpoint 27°F (-3°C)
Visibility NA
Last update 14 Jan 01:59 PM PST
Extended Forecast for

11 Miles W Quartz Hill CA

Wind Advisory January 14, 02:41pm until January 15, 02:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory January 14, 02:41pm until January 15, 02:00pm

    NOW until 2:00pm Thu

    Wind Advisory

  • This Afternoon

    High: 58 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: Clear, with a low around 51. Breezy, with a northeast wind 20 to 25 mph, with gusts as high as 40 mph.

    Low: 51 °F

    Clear and
    Breezy

  • Thursday

    Thursday: Sunny, with a high near 63. Breezy, with a northeast wind around 20 mph, with gusts as high as 30 mph.

    High: 63 °F

    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: Clear, with a low around 50. Northeast wind around 15 mph, with gusts as high as 25 mph.

    Low: 50 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 62. Breezy, with an east northeast wind 20 to 25 mph, with gusts as high as 35 mph.

    High: 62 °F

    Sunny and
    Breezy

  • Friday Night

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

    Low: 43 °F

    Mostly Clear
    and Breezy

  • Saturday

    Saturday: Mostly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Sunny, with a high near 58. Breezy, with a northeast wind around 25 mph, with gusts as high as 40 mph.
Tonight
Clear, with a low around 51. Breezy, with a northeast wind 20 to 25 mph, with gusts as high as 40 mph.
Thursday
Sunny, with a high near 63. Breezy, with a northeast wind around 20 mph, with gusts as high as 30 mph.
Thursday Night
Clear, with a low around 50. Northeast wind around 15 mph, with gusts as high as 25 mph.
Friday
Sunny, with a high near 62. Breezy, with an east northeast wind 20 to 25 mph, with gusts as high as 35 mph.
Friday Night
Mostly clear, with a low around 43. Breezy.
Saturday
Mostly sunny, with a high near 61.
Saturday Night
Partly cloudy, with a low around 46.
Sunday
Sunny, with a high near 61.
Sunday Night
Clear, with a low around 45.
M.L.King Day
Sunny, with a high near 61.
Monday Night
Mostly clear, with a low around 44.
Tuesday
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 W Quartz Hill CA
 34.65°N 118.43°W (Elev. 3832 ft)
Last Update:
1:41 pm PST Jan 14, 2026
Forecast Valid:
2pm 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