Current conditions at
GRASS MOUNTAIN (GMTC1)
Lat: 34.64078°NLon: 118.41435°WElev: 4626.0ft.NA
83°F
28°C
| Humidity | 18% |
| Wind Speed | N 2 MPH |
| Barometer | NA |
| Dewpoint | 35°F (2°C) |
| Visibility | NA |
| Heat Index | 80°F (27°C) |
| Last update | 24 Sep 09:59 AM PDT |
Extended Forecast for
11 Miles WSW Quartz Hill CA
Today

High: 87 °F
Sunny
Tonight

Low: 62 °F
Mostly Clear
Friday

High: 85 °F
Sunny
Friday Night

Low: 61 °F
Mostly Clear
Saturday
High: 81 °F
Mostly Sunny
then Mostly
Sunny and
BreezySaturday Night
Low: 59 °F
Mostly Cloudy
and Breezy
then Partly
CloudySunday
High: 74 °F
Sunny then
Sunny and
BreezySunday Night
Low: 52 °F
Mostly Clear
and Breezy
then Mostly
ClearMonday

High: 72 °F
Sunny
Detailed Forecast
Today
Sunny, with a high near 87. Northeast wind 5 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.
Tonight
Mostly clear, with a low around 62. West wind 5 to 10 mph, with gusts as high as 15 mph.
Friday
Sunny, with a high near 85. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around 61. West wind 5 to 15 mph, with gusts as high as 20 mph.
Saturday
Mostly sunny, with a high near 81. Breezy, with a west wind 5 to 10 mph becoming south southwest 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Saturday Night
Partly cloudy, with a low around 59. Breezy.
Sunday
Sunny, with a high near 74. Breezy.
Sunday Night
Mostly clear, with a low around 52. Breezy.
Monday
Sunny, with a high near 72.
Monday Night
Mostly clear, with a low around 51. Breezy.
Tuesday
Sunny, with a high near 76. Breezy.
Tuesday Night
Clear, with a low around 55.
Wednesday
Sunny, with a high near 79.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
11 Miles WSW Quartz Hill CA
34.63°N 118.39°W (Elev. 3228 ft)
34.63°N 118.39°W (Elev. 3228 ft)
7:52 am PDT Sep 24, 2026
10am PDT Sep 24, 2026-6pm PDT Sep 30, 2026


