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

55°F

13°C

Humidity 42%
Wind Speed N 6 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Last update 08 Apr 02:59 AM PDT
Extended Forecast for

11 Miles W Quartz Hill CA

  • Overnight

    Overnight: Clear, with a low around 52. Northwest wind around 10 mph.

    Low: 52 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 70. Northwest wind around 10 mph, with gusts as high as 15 mph.

    High: 70 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 54. West wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 54 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 68. West wind around 10 mph, with gusts as high as 15 mph.

    High: 68 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 50. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 50 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of rain after 11am. Mostly sunny, with a high near 61.

    High: 61 °F

    Slight Chance
    Rain

  • Friday Night

    Friday Night: Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 47. Breezy. Chance of precipitation is 70%.

    Low: 47 °F

    Rain Likely
    and Breezy

  • Saturday

    Saturday: Rain likely, with thunderstorms also possible after 11am. Mostly cloudy, with a high near 53.

    High: 53 °F

    Rain Likely

  • Saturday Night

    Saturday Night: A chance of rain. Mostly cloudy, with a low around 45.

    Low: 45 °F

    Chance Rain

Detailed Forecast

Overnight
Clear, with a low around 52. Northwest wind around 10 mph.
Wednesday
Sunny, with a high near 70. Northwest wind around 10 mph, with gusts as high as 15 mph.
Wednesday Night
Mostly clear, with a low around 54. West wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday
Mostly sunny, with a high near 68. West wind around 10 mph, with gusts as high as 15 mph.
Thursday Night
Partly cloudy, with a low around 50. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Friday
A 20 percent chance of rain after 11am. Mostly sunny, with a high near 61.
Friday Night
Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 47. Breezy. Chance of precipitation is 70%.
Saturday
Rain likely, with thunderstorms also possible after 11am. Mostly cloudy, with a high near 53.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 45.
Sunday
A chance of rain. Partly sunny, with a high near 52.
Sunday Night
A slight chance of rain. Partly cloudy, with a low around 41.
Monday
Sunny, with a high near 57.
Monday Night
Mostly clear, with a low around 43.
Tuesday
Sunny, with a high near 64.
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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:
2:13 am PDT Apr 8, 2026
Forecast Valid:
3am PDT Apr 8, 2026-6pm PDT Apr 14, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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