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

48°F

9°C

Humidity 98%
Wind Speed SSW 24 MPH
Barometer NA
Dewpoint 47°F (8°C)
Visibility NA
Wind Chill40°F (4°C)
Last update 31 Mar 04:59 PM PDT
Extended Forecast for

11 Miles W Quartz Hill CA

  • This Afternoon

    This Afternoon: Rain. High near 61. Southwest wind around 15 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 61 °F

    Rain

  • Tonight

    Tonight: Rain, mainly before 11pm. Low around 43. Southwest wind 10 to 15 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 43 °F

    Rain then
    Chance Rain

  • Wednesday

    Wednesday: Mostly sunny, with a high near 62. Breezy, with a west southwest wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon.

    High: 62 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 41. Breezy, with a southwest wind 10 to 20 mph.

    Low: 41 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Thursday

    Thursday: Sunny, with a high near 58. Breezy, with a west northwest wind 15 to 25 mph.

    High: 58 °F

    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 42. Breezy.

    Low: 42 °F

    Mostly Clear
    and Breezy

  • Friday

    Friday: Sunny, with a high near 64. Windy.

    High: 64 °F

    Sunny and
    Windy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 48. Breezy.

    Low: 48 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Saturday

    Saturday: Sunny, with a high near 72. Breezy.

    High: 72 °F

    Sunny and
    Breezy

Detailed Forecast

This Afternoon
Rain. High near 61. Southwest wind around 15 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Rain, mainly before 11pm. Low around 43. Southwest wind 10 to 15 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Mostly sunny, with a high near 62. Breezy, with a west southwest wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 41. Breezy, with a southwest wind 10 to 20 mph.
Thursday
Sunny, with a high near 58. Breezy, with a west northwest wind 15 to 25 mph.
Thursday Night
Mostly clear, with a low around 42. Breezy.
Friday
Sunny, with a high near 64. Windy.
Friday Night
Partly cloudy, with a low around 48. Breezy.
Saturday
Sunny, with a high near 72. Breezy.
Saturday Night
Mostly clear, with a low around 49.
Sunday
Sunny, with a high near 75.
Sunday Night
Partly cloudy, with a low around 52.
Monday
Mostly sunny, with a high near 73.
Monday Night
Mostly clear, with a low around 50.
Tuesday
Sunny, with a high near 73.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles W Quartz Hill CA
 34.67°N 118.4°W (Elev. 3599 ft)
Last Update:
4:22 pm PDT Mar 31, 2026
Forecast Valid:
5pm PDT Mar 31, 2026-6pm PDT Apr 7, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation