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

85°F

29°C

Humidity 27%
Wind Speed S 13 MPH
Barometer NA
Dewpoint 47°F (8°C)
Visibility NA
Heat Index83°F (28°C)
Last update 13 Jul 12:59 PM PDT
Extended Forecast for

11 Miles WSW Quartz Hill CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 88. Breezy, with a southwest wind around 20 mph, with gusts as high as 30 mph.

    High: 88 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: Clear, with a low around 63. Breezy, with a west southwest wind 15 to 20 mph decreasing to 5 to 10 mph in the evening. Winds could gust as high as 30 mph.

    Low: 63 °F

    Clear and
    Breezy then
    Clear

  • Monday

    Monday: Sunny, with a high near 90. Breezy, with a southwest wind 5 to 15 mph increasing to 15 to 25 mph in the afternoon. Winds could gust as high as 35 mph.

    High: 90 °F

    Sunny and
    Breezy

  • Monday Night

    Monday Night: Clear, with a low around 60. Breezy, with a southwest wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 30 mph.

    Low: 60 °F

    Clear and
    Breezy then
    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 82. Breezy, with a southwest wind 5 to 10 mph increasing to 15 to 20 mph in the morning. Winds could gust as high as 30 mph.

    High: 82 °F

    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: Clear, with a low around 56. Breezy.

    Low: 56 °F

    Clear and
    Breezy then
    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 57.

    Low: 57 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 88. Breezy, with a southwest wind around 20 mph, with gusts as high as 30 mph.
Tonight
Clear, with a low around 63. Breezy, with a west southwest wind 15 to 20 mph decreasing to 5 to 10 mph in the evening. Winds could gust as high as 30 mph.
Monday
Sunny, with a high near 90. Breezy, with a southwest wind 5 to 15 mph increasing to 15 to 25 mph in the afternoon. Winds could gust as high as 35 mph.
Monday Night
Clear, with a low around 60. Breezy, with a southwest wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 30 mph.
Tuesday
Sunny, with a high near 82. Breezy, with a southwest wind 5 to 10 mph increasing to 15 to 20 mph in the morning. Winds could gust as high as 30 mph.
Tuesday Night
Clear, with a low around 56. Breezy.
Wednesday
Sunny, with a high near 81.
Wednesday Night
Clear, with a low around 57.
Thursday
Sunny, with a high near 83.
Thursday Night
Mostly clear, with a low around 59.
Friday
Sunny, with a high near 85.
Friday Night
Mostly clear, with a low around 61.
Saturday
Sunny, with a high near 89.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles WSW Quartz Hill CA
 34.63°N 118.39°W (Elev. 3228 ft)
Last Update:
1:08 pm PDT Jul 13, 2025
Forecast Valid:
1pm PDT Jul 13, 2025-6pm PDT Jul 19, 2025
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation