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

40°F

4°C

Humidity 99%
Wind Speed SSW 3 MPH
Barometer NA
Dewpoint 40°F (4°C)
Visibility NA
Last update 24 Jan 04:59 AM PST
Extended Forecast for

7 Miles WSW Quartz Hill CA

  • Today

    Today: Sunny, with a high near 49. Breezy, with a west wind 10 to 15 mph becoming northeast 15 to 20 mph in the morning. Winds could gust as high as 30 mph.

    High: 49 °F

    Sunny then
    Sunny and
    Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 40. Breezy, with a northeast wind around 20 mph, with gusts as high as 30 mph.

    Low: 40 °F

    Mostly Clear
    and Breezy

  • Sunday

    Sunday: Increasing clouds, with a high near 48. Breezy, with a northeast wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 48 °F

    Increasing
    Clouds and
    Breezy

  • Sunday Night

    Sunday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 41. Northeast wind around 10 mph, with gusts as high as 15 mph.

    Low: 41 °F

    Decreasing
    Clouds

  • Monday

    Monday: Mostly sunny, with a high near 51. Northeast wind around 15 mph, with gusts as high as 20 mph.

    High: 51 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 52.

    High: 52 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 51.

    High: 51 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 49. Breezy, with a west wind 10 to 15 mph becoming northeast 15 to 20 mph in the morning. Winds could gust as high as 30 mph.
Tonight
Mostly clear, with a low around 40. Breezy, with a northeast wind around 20 mph, with gusts as high as 30 mph.
Sunday
Increasing clouds, with a high near 48. Breezy, with a northeast wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 41. Northeast wind around 10 mph, with gusts as high as 15 mph.
Monday
Mostly sunny, with a high near 51. Northeast wind around 15 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 38.
Tuesday
Sunny, with a high near 52.
Tuesday Night
Mostly clear, with a low around 41.
Wednesday
Mostly sunny, with a high near 51.
Wednesday Night
Partly cloudy, with a low around 41.
Thursday
Mostly sunny, with a high near 53.
Thursday Night
Mostly clear, with a low around 42.
Friday
Sunny, with a high near 57.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles WSW Quartz Hill CA
 34.59°N 118.3°W (Elev. 4199 ft)
Last Update:
1:06 am PST Jan 24, 2026
Forecast Valid:
5am PST Jan 24, 2026-6pm PST Jan 30, 2026
 
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