Current conditions at

GRASS MOUNTAIN (GMTC1)

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

NA

95°F

35°C

Humidity 15%
Wind Speed SSW 13 MPH
Barometer NA
Dewpoint 40°F (4°C)
Visibility NA
Heat Index91°F (33°C)
Last update 26 Aug 12:59 PM PDT
Extended Forecast for

5 Miles WSW Quartz Hill CA

Extreme Heat Warning August 26, 02:01pm until August 28, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 26, 02:01pm until August 28, 08:00pm

    NOW until 8:00pm Fri

    Extreme Heat Warning

  • This Afternoon

    High: 96 °F

    Hot and
    Breezy

  • Tonight

    Tonight: Increasing clouds, with a low around 72. Breezy, with a west northwest wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 30 mph.

    Low: 72 °F

    Mostly Clear
    and Breezy
    then Mostly
    Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 94. Northwest wind 10 to 15 mph becoming west southwest in the morning. Winds could gust as high as 20 mph.

    High: 94 °F

    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before 11pm.  Mostly cloudy, with a low around 72. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 72 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 92. Breezy, with a north northwest wind 10 to 15 mph becoming west southwest 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 92 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 71. Breezy.

    Low: 71 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Saturday

    Saturday: Sunny, with a high near 89. Breezy.

    High: 89 °F

    Sunny then
    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Clear, with a low around 68. Breezy.

    Low: 68 °F

    Clear and
    Breezy then
    Clear

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 96. Breezy, with a west southwest wind around 20 mph, with gusts as high as 30 mph.
Tonight
Increasing clouds, with a low around 72. Breezy, with a west northwest wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 30 mph.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 94. Northwest wind 10 to 15 mph becoming west southwest in the morning. Winds could gust as high as 20 mph.
Thursday Night
A 20 percent chance of showers before 11pm. Mostly cloudy, with a low around 72. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Friday
Mostly sunny, with a high near 92. Breezy, with a north northwest wind 10 to 15 mph becoming west southwest 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Friday Night
Mostly clear, with a low around 71. Breezy.
Saturday
Sunny, with a high near 89. Breezy.
Saturday Night
Clear, with a low around 68. Breezy.
Sunday
Sunny, with a high near 85. Breezy.
Sunday Night
Clear, with a low around 63. Breezy.
Monday
Sunny, with a high near 81. Breezy.
Monday Night
A slight chance of showers. Mostly clear, with a low around 62. Breezy.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 80. Breezy.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WSW Quartz Hill CA
 34.62°N 118.28°W (Elev. 3340 ft)
11:26 am PDT Aug 26, 2026
2pm PDT Aug 26, 2026-6pm PDT Sep 1, 2026
 
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Additional Resources

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