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

56°F

13°C

Humidity 33%
Wind Speed NNE 3 MPH
Barometer NA
Dewpoint 27°F (-3°C)
Visibility NA
Last update 14 Oct 09:59 AM PDT
Extended Forecast for

18 Miles W Quartz Hill CA

High Wind Watch October 15, 06:00am until October 16, 08:00pm
Red Flag Warning October 15, 06:00am until October 16, 10:00pm
Click here for hazard details and duration
High Wind Watch
Red Flag Warning

  • Today

    Today: Sunny, with a high near 67. Northeast wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 67 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 52. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 52 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 70. Windy, with a northeast wind 20 to 30 mph, with gusts as high as 45 mph.

    High: 70 °F

    Sunny and
    Windy

  • Thursday Night

    Thursday Night: Clear, with a low around 60. Windy, with a northeast wind around 30 mph, with gusts as high as 50 mph.

    Low: 60 °F

    Clear and
    Windy

  • Friday

    Friday: Sunny, with a high near 72. Very windy, with a northeast wind 30 to 40 mph, with gusts as high as 55 mph.

    High: 72 °F

    Sunny and
    Very Windy

  • Friday Night

    Friday Night: Clear, with a low around 60. Breezy.

    Low: 60 °F

    Clear and
    Breezy

  • Saturday

    Saturday: Sunny, with a high near 71. Breezy.

    High: 71 °F

    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Clear, with a low around 57.

    Low: 57 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 67. Northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Tonight
Clear, with a low around 52. North northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday
Sunny, with a high near 70. Windy, with a northeast wind 20 to 30 mph, with gusts as high as 45 mph.
Thursday Night
Clear, with a low around 60. Windy, with a northeast wind around 30 mph, with gusts as high as 50 mph.
Friday
Sunny, with a high near 72. Very windy, with a northeast wind 30 to 40 mph, with gusts as high as 55 mph.
Friday Night
Clear, with a low around 60. Breezy.
Saturday
Sunny, with a high near 71. Breezy.
Saturday Night
Clear, with a low around 57.
Sunday
Sunny, with a high near 72.
Sunday Night
Clear, with a low around 55.
Monday
Sunny, with a high near 69.
Monday Night
Clear, with a low around 48.
Tuesday
A slight chance of showers. Sunny, with a high near 58. Breezy.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
18 Miles W Quartz Hill CA
 34.7°N 118.52°W (Elev. 4400 ft)
Last Update:
2:06 am PDT Oct 14, 2026
Forecast Valid:
11am PDT Oct 14, 2026-6pm PDT Oct 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