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

52°F

11°C

Humidity 52%
Wind Speed WNW 5 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility NA
Last update 16 Apr 06:59 PM PDT
Extended Forecast for

11 Miles W Quartz Hill CA

Wind Advisory April 17, 04:00am until April 17, 02:00pm
Click here for hazard details and duration
Wind Advisory

  • Tonight

    Tonight: Clear, with a low around 42. Breezy, with a northwest wind 15 to 20 mph becoming northeast after midnight. Winds could gust as high as 30 mph.

    Low: 42 °F

    Clear and
    Breezy

  • Friday

    Friday: Sunny, with a high near 58. Windy, with a northeast wind 25 to 30 mph decreasing to 15 to 20 mph in the afternoon. Winds could gust as high as 45 mph.

    High: 58 °F

    Sunny and
    Windy

  • Friday Night

    Friday Night: Mostly clear, with a low around 45. North wind around 10 mph, with gusts as high as 15 mph.

    Low: 45 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 72. Breezy, with an east northeast wind 15 to 20 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 72 °F

    Mostly Sunny
    and Breezy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 51. East wind around 5 mph becoming west northwest in the evening.

    Low: 51 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Sunday Night

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

    Low: 45 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Monday Night

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

    Low: 45 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 42. Breezy, with a northwest wind 15 to 20 mph becoming northeast after midnight. Winds could gust as high as 30 mph.
Friday
Sunny, with a high near 58. Windy, with a northeast wind 25 to 30 mph decreasing to 15 to 20 mph in the afternoon. Winds could gust as high as 45 mph.
Friday Night
Mostly clear, with a low around 45. North wind around 10 mph, with gusts as high as 15 mph.
Saturday
Mostly sunny, with a high near 72. Breezy, with an east northeast wind 15 to 20 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph.
Saturday Night
Partly cloudy, with a low around 51. East wind around 5 mph becoming west northwest in the evening.
Sunday
Mostly sunny, with a high near 69.
Sunday Night
Mostly clear, with a low around 45.
Monday
Sunny, with a high near 65.
Monday Night
Mostly clear, with a low around 45.
Tuesday
A slight chance of rain. Mostly sunny, with a high near 59.
Tuesday Night
A slight chance of rain. Partly cloudy, with a low around 44.
Wednesday
Mostly sunny, with a high near 58.
Wednesday Night
Partly cloudy, with a low around 44.
Thursday
Mostly sunny, with a high near 62.
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:
8:15 pm PDT Apr 16, 2026
Forecast Valid:
8pm PDT Apr 16, 2026-6pm PDT Apr 23, 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