National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

GRASS MOUNTAIN (GMTC1)

Lat: 34.64078°NLon: 118.41435°WElev: 4626.0ft.

NA

51°F

11°C

Humidity 31%
Wind Speed W 5 MPH
Barometer NA
Dewpoint 21°F (-6°C)
Visibility NA
Last update 04 Feb 12:59 AM PST
Extended Forecast for

11 Miles W Quartz Hill CA

  • Overnight

    Overnight: Clear, with a low around 46. Northeast wind around 15 mph, with gusts as high as 20 mph.

    Low: 46 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 67. Breezy, with an east northeast wind 15 to 20 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 40 mph.

    High: 67 °F

    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 46. Breezy, with a northeast wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 46 °F

    Mostly Clear
    and Breezy
    then Partly
    Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 65. Breezy, with a northeast wind around 20 mph, with gusts as high as 30 mph.

    High: 65 °F

    Partly Sunny
    and Breezy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 45. North northeast wind 5 to 10 mph.

    Low: 45 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 61.

    High: 61 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a low around 46. Northeast wind around 15 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 67. Breezy, with an east northeast wind 15 to 20 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 40 mph.
Wednesday Night
Partly cloudy, with a low around 46. Breezy, with a northeast wind 15 to 20 mph, with gusts as high as 30 mph.
Thursday
Partly sunny, with a high near 65. Breezy, with a northeast wind around 20 mph, with gusts as high as 30 mph.
Thursday Night
Mostly cloudy, with a low around 45. North northeast wind 5 to 10 mph.
Friday
Partly sunny, with a high near 61.
Friday Night
Partly cloudy, with a low around 44.
Saturday
Sunny, with a high near 63.
Saturday Night
Mostly clear, with a low around 44.
Sunday
Sunny, with a high near 66.
Sunday Night
Mostly clear, with a low around 44.
Monday
Mostly sunny, with a high near 58. Breezy.
Monday Night
A slight chance of rain. Mostly cloudy, with a low around 40. Breezy.
Tuesday
A chance of rain. Partly sunny, with a high near 51. Breezy.
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
 34.67°N 118.4°W (Elev. 3599 ft)
Last Update:
1:06 am PST Feb 4, 2026
Forecast Valid:
1am PST Feb 4, 2026-6pm PST Feb 10, 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