Current conditions at

GRASS MOUNTAIN (GMTC1)

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

NA

42°F

6°C

Humidity 50%
Wind Speed E 4 MPH
Barometer NA
Dewpoint 25°F (-4°C)
Visibility NA
Wind Chill40°F (4°C)
Last update 29 Dec 10:59 AM PST
Extended Forecast for

11 Miles W Quartz Hill CA

High Wind Warning December 29, 12:08pm until December 29, 03:00pm
Click here for hazard details and duration
High Wind Warning
  •  
    High Wind Warning December 29, 12:08pm until December 29, 03:00pm

    NOW until 3:00pm Mon

    High Wind Warning

  • This Afternoon

    High: 50 °F

    Sunny and
    Windy

  • Tonight

    Tonight: Increasing clouds, with a low around 40. Wind chill values as low as 30. Windy, with a northeast wind 25 to 30 mph, with gusts as high as 40 mph.

    Low: 40 °F

    Increasing
    Clouds and
    Windy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 51. Wind chill values as low as 30 early. Breezy, with a northeast wind around 25 mph, with gusts as high as 35 mph.

    High: 51 °F

    Mostly Cloudy
    and Breezy

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain, mainly after 4am.  Mostly cloudy, with a low around 45. Breezy, with a northeast wind around 20 mph, with gusts as high as 30 mph.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 45 °F

    Chance Rain
    and Breezy

  • Wednesday

    Wednesday: Rain, mainly after 10am.  High near 49. Breezy, with an east northeast wind 15 to 20 mph, with gusts as high as 25 mph.  Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 49 °F

    Rain and
    Breezy

  • Wednesday Night

    Wednesday Night: Rain.  Low around 43. Breezy.  Chance of precipitation is 90%.

    Low: 43 °F

    Rain and
    Breezy

  • New Year's Day

    New Year's Day: Rain.  High near 48. Chance of precipitation is 90%.

    High: 48 °F

    Rain

  • Thursday Night

    Thursday Night: Rain likely, mainly before 4am.  Mostly cloudy, with a low around 46.

    Low: 46 °F

    Rain Likely

Detailed Forecast

This Afternoon
Sunny, with a high near 50. Windy, with a northeast wind around 30 mph, with gusts as high as 45 mph.
Tonight
Increasing clouds, with a low around 40. Wind chill values as low as 30. Windy, with a northeast wind 25 to 30 mph, with gusts as high as 40 mph.
Tuesday
Mostly cloudy, with a high near 51. Wind chill values as low as 30 early. Breezy, with a northeast wind around 25 mph, with gusts as high as 35 mph.
Tuesday Night
A 30 percent chance of rain, mainly after 4am. Mostly cloudy, with a low around 45. Breezy, with a northeast wind around 20 mph, with gusts as high as 30 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Rain, mainly after 10am. High near 49. Breezy, with an east northeast wind 15 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
Rain. Low around 43. Breezy. Chance of precipitation is 90%.
New Year's Day
Rain. High near 48. Chance of precipitation is 90%.
Thursday Night
Rain likely, mainly before 4am. Mostly cloudy, with a low around 46.
Friday
Rain likely, mainly after 10am. Mostly cloudy, with a high near 49.
Friday Night
Rain likely, mainly before 4am. Mostly cloudy, with a low around 47.
Saturday
Rain likely. Mostly cloudy, with a high near 49.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 45.
Sunday
A chance of rain. Partly sunny, with a high near 49.
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 Dec 29, 2025
12pm PST Dec 29, 2025-6pm PST Jan 4, 2026
 
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Additional Resources

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