Current conditions at

GRASS MOUNTAIN (GMTC1)

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

NA

50°F

10°C

Humidity 30%
Wind Speed E 4 MPH
Barometer NA
Dewpoint 20°F (-7°C)
Visibility NA
Wind Chill49°F (9°C)
Last update 20 Jan 04:59 PM PST
Extended Forecast for

11 Miles W Quartz Hill CA

  • Tonight

    Tonight: Mostly cloudy, with a low around 37. East northeast wind around 10 mph, with gusts as high as 15 mph.

    Low: 37 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 58. North wind around 5 mph becoming south in the afternoon.

    High: 58 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 39. Southwest wind around 5 mph.

    Low: 39 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 30 percent chance of rain after 10am.  Partly sunny, with a high near 55. West wind around 5 mph becoming south southeast in the morning.  New precipitation amounts of less than a tenth of an inch possible.

    High: 55 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A 20 percent chance of rain before 4am.  Mostly cloudy, with a low around 42. West wind around 5 mph.

    Low: 42 °F

    Slight Chance
    Rain

  • Friday

    Friday: A 20 percent chance of rain after 10am.  Partly sunny, with a high near 54.

    High: 54 °F

    Slight Chance
    Rain

  • Friday Night

    Friday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 56.

    High: 56 °F

    Mostly Sunny

  • Saturday Night

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

    Low: 36 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 37. East northeast wind around 10 mph, with gusts as high as 15 mph.
Wednesday
Mostly cloudy, with a high near 58. North wind around 5 mph becoming south in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 39. Southwest wind around 5 mph.
Thursday
A 30 percent chance of rain after 10am. Partly sunny, with a high near 55. West wind around 5 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 rain before 4am. Mostly cloudy, with a low around 42. West wind around 5 mph.
Friday
A 20 percent chance of rain after 10am. Partly sunny, with a high near 54.
Friday Night
Partly cloudy, with a low around 41.
Saturday
Mostly sunny, with a high near 56.
Saturday Night
Mostly clear, with a low around 36.
Sunday
Sunny, with a high near 57.
Sunday Night
Partly cloudy, with a low around 36.
Monday
Mostly sunny, with a high near 53.
Monday Night
Partly cloudy, with a low around 37.
Tuesday
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)
1:06 pm PST Jan 20, 2026
6pm PST Jan 20, 2026-6pm PST Jan 27, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database