Current conditions at

GRASS MOUNTAIN (GMTC1)

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

NA

45°F

7°C

Humidity 62%
Wind Speed E 0 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Last update 22 Jan 06:59 PM PST
Extended Forecast for

11 Miles WSW Quartz Hill CA

  • Tonight

    Tonight: Partly cloudy, with a low around 42. North northwest wind around 5 mph becoming west after midnight.

    Low: 42 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 55. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 55 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 41. West southwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 41 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 52. Northwest wind 5 to 15 mph becoming east northeast in the afternoon. Winds could gust as high as 25 mph.

    High: 52 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 37. North northeast wind around 15 mph, with gusts as high as 20 mph.

    Low: 37 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 51.

    High: 51 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 42. North northwest wind around 5 mph becoming west after midnight.
Friday
Sunny, with a high near 55. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Friday Night
Mostly clear, with a low around 41. West southwest wind around 10 mph, with gusts as high as 20 mph.
Saturday
Sunny, with a high near 52. Northwest wind 5 to 15 mph becoming east northeast in the afternoon. Winds could gust as high as 25 mph.
Saturday Night
Mostly clear, with a low around 37. North northeast wind around 15 mph, with gusts as high as 20 mph.
Sunday
Mostly sunny, with a high near 51.
Sunday Night
Mostly clear, with a low around 36.
Monday
Mostly sunny, with a high near 53.
Monday Night
Mostly clear, with a low around 37.
Tuesday
Mostly sunny, with a high near 55.
Tuesday Night
Partly cloudy, with a low around 39.
Wednesday
Mostly sunny, with a high near 56.
Wednesday Night
Mostly clear, with a low around 41.
Thursday
Sunny, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles WSW Quartz Hill CA
 34.63°N 118.39°W (Elev. 3228 ft)
1:07 pm PST Jan 22, 2026
7pm PST Jan 22, 2026-6pm PST Jan 29, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database