Current conditions at

GRASS MOUNTAIN (GMTC1)

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

NA

36°F

2°C

Humidity 100%
Wind Speed S 5 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Wind Chill32°F (0°C)
Last update 18 Nov 02:59 AM PST
Extended Forecast for

11 Miles W Quartz Hill CA

  • Overnight

    Overnight: A 20 percent chance of showers before 4am.  Partly cloudy, with a low around 39. West southwest wind around 15 mph, with gusts as high as 20 mph.

    Low: 39 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly between 10am and 4pm.  Mostly sunny, with a high near 45. South southwest wind 5 to 10 mph.  New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 45 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms before 10pm.  Partly cloudy, with a low around 37. West southwest wind around 5 mph becoming northwest after midnight.

    Low: 37 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers.  Mostly sunny, with a high near 49. Northeast wind around 5 mph.

    High: 49 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 41. West wind around 5 mph.

    Low: 41 °F

    Partly Cloudy

  • Thursday

    Thursday: A 30 percent chance of showers after 10am.  Mostly cloudy, with a high near 46.

    High: 46 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Showers likely.  Mostly cloudy, with a low around 40. Breezy.  Chance of precipitation is 70%.

    Low: 40 °F

    Showers
    Likely and
    Breezy

  • Friday

    Friday: A chance of showers.  Mostly cloudy, with a high near 44. Breezy.

    High: 44 °F

    Chance
    Showers and
    Breezy

  • Friday Night

    Friday Night: A chance of showers.  Mostly cloudy, with a low around 41. Breezy.

    Low: 41 °F

    Chance
    Showers and
    Breezy

Detailed Forecast

Overnight
A 20 percent chance of showers before 4am. Partly cloudy, with a low around 39. West southwest wind around 15 mph, with gusts as high as 20 mph.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly between 10am and 4pm. Mostly sunny, with a high near 45. South southwest wind 5 to 10 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 37. West southwest wind around 5 mph becoming northwest after midnight.
Wednesday
A 20 percent chance of showers. Mostly sunny, with a high near 49. Northeast wind around 5 mph.
Wednesday Night
Partly cloudy, with a low around 41. West wind around 5 mph.
Thursday
A 30 percent chance of showers after 10am. Mostly cloudy, with a high near 46.
Thursday Night
Showers likely. Mostly cloudy, with a low around 40. Breezy. Chance of precipitation is 70%.
Friday
A chance of showers. Mostly cloudy, with a high near 44. Breezy.
Friday Night
A chance of showers. Mostly cloudy, with a low around 41. Breezy.
Saturday
Sunny, with a high near 50. Breezy.
Saturday Night
Mostly clear, with a low around 43.
Sunday
Sunny, with a high near 54.
Sunday Night
Clear, with a low around 44.
Monday
Sunny, with a high near 56.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles W Quartz Hill CA
 34.65°N 118.43°W (Elev. 3832 ft)
1:07 am PST Nov 18, 2025
3am PST Nov 18, 2025-6pm PST Nov 24, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database