Current conditions at

GRASS MOUNTAIN (GMTC1)

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

NA

51°F

11°C

Humidity 31%
Wind Speed E 1 MPH
Barometer NA
Dewpoint 21°F (-6°C)
Visibility NA
Last update 21 Jan 10:59 PM PST
Extended Forecast for

11 Miles W Quartz Hill CA

  • Tonight

    Tonight: Mostly cloudy, with a low around 39. North wind around 5 mph becoming southwest after midnight.

    Low: 39 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 40 percent chance of showers, mainly after 10am.  Cloudy, then gradually becoming mostly sunny, with a high near 55. West wind 5 to 10 mph becoming south southeast in the morning.  New precipitation amounts of less than a tenth of an inch possible.

    High: 55 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 20 percent chance of showers.  Partly cloudy, with a low around 41. West northwest wind around 5 mph.

    Low: 41 °F

    Slight Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 54. Southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 54 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 40. West wind around 10 mph.

    Low: 40 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 51.

    High: 51 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 34.

    Low: 34 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 39. North wind around 5 mph becoming southwest after midnight.
Thursday
A 40 percent chance of showers, mainly after 10am. Cloudy, then gradually becoming mostly sunny, with a high near 55. West wind 5 to 10 mph becoming south southeast in the morning. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 41. West northwest wind around 5 mph.
Friday
Mostly sunny, with a high near 54. Southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Friday Night
Partly cloudy, with a low around 40. West wind around 10 mph.
Saturday
Sunny, with a high near 56.
Saturday Night
Mostly clear, with a low around 36.
Sunday
Mostly sunny, with a high near 51.
Sunday Night
Partly cloudy, with a low around 34.
Monday
Mostly sunny, with a high near 53.
Monday Night
Mostly clear, with a low around 36.
Tuesday
Sunny, with a high near 55.
Tuesday Night
Partly cloudy, with a low around 39.
Wednesday
Partly sunny, with a high near 56.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles W Quartz Hill CA
 34.67°N 118.4°W (Elev. 3599 ft)
9:21 pm PST Jan 21, 2026
11pm PST Jan 21, 2026-6pm PST Jan 28, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database