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

38°F

3°C

Humidity 30%
Wind Speed E 2 MPH
Barometer NA
Dewpoint 9°F (-13°C)
Visibility NA
Last update 24 Jan 11:59 PM PST
Extended Forecast for

11 Miles W Quartz Hill CA

  • Overnight

    Overnight: Clear, with a low around 32. Wind chill values as low as 20. Breezy, with a northeast wind around 20 mph, with gusts as high as 30 mph.

    Low: 32 °F

    Clear and
    Breezy

  • Sunday

    Sunday: Increasing clouds, with a high near 52. Wind chill values as low as 20 early. Northeast wind around 15 mph, with gusts as high as 25 mph.

    High: 52 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Cloudy, then gradually becoming partly cloudy, with a low around 32. North northeast wind around 5 mph.

    Low: 32 °F

    Decreasing
    Clouds

  • Monday

    Monday: Sunny, with a high near 53. Wind chill values as low as 25 early. East northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 53 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 35. North northeast wind around 10 mph, with gusts as high as 15 mph.

    Low: 35 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a low around 32. Wind chill values as low as 20. Breezy, with a northeast wind around 20 mph, with gusts as high as 30 mph.
Sunday
Increasing clouds, with a high near 52. Wind chill values as low as 20 early. Northeast wind around 15 mph, with gusts as high as 25 mph.
Sunday Night
Cloudy, then gradually becoming partly cloudy, with a low around 32. North northeast wind around 5 mph.
Monday
Sunny, with a high near 53. Wind chill values as low as 25 early. East northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 35. North northeast wind around 10 mph, with gusts as high as 15 mph.
Tuesday
Sunny, with a high near 55.
Tuesday Night
Mostly clear, with a low around 39.
Wednesday
Mostly sunny, with a high near 53.
Wednesday Night
Mostly clear, with a low around 39.
Thursday
Sunny, with a high near 55.
Thursday Night
Mostly clear, with a low around 39.
Friday
Sunny, with a high near 60.
Friday Night
Partly cloudy, with a low around 41.
Saturday
Mostly sunny, with a high near 61.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles W Quartz Hill CA
 34.67°N 118.4°W (Elev. 3599 ft)
Last Update:
7:56 pm PST Jan 24, 2026
Forecast Valid:
12am PST Jan 25, 2026-6pm PST Jan 31, 2026
 
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