Hazardous Weather Conditions
Current conditions at
GRASS MOUNTAIN (GMTC1)
Lat: 34.64078°NLon: 118.41435°WElev: 4626.0ft.NA
78°F
26°C
| Humidity | 24% |
| Wind Speed | SSW 22 MPH |
| Barometer | NA |
| Dewpoint | 38°F (3°C) |
| Visibility | NA |
| Heat Index | 78°F (26°C) |
| Last update | 24 Jun 02:59 PM PDT |
Extended Forecast for
11 Miles W Quartz Hill CA
Heat Advisory June 24, 03:23pm until June 25, 09:00pm
NOW until 9:00pm Thu

Heat Advisory
This Afternoon

High: 91 °F
Sunny and
BreezyTonight

Low: 65 °F
Clear
Thursday
High: 88 °F
Sunny then
Sunny and
BreezyThursday Night
Low: 56 °F
Clear and
Breezy then
ClearFriday

High: 80 °F
Sunny and
BreezyFriday Night
Low: 56 °F
Clear and
Breezy then
ClearSaturday
High: 68 °F
Sunny then
Sunny and
BreezySaturday Night
Low: 49 °F
Clear and
Breezy then
Mostly Clear
Detailed Forecast
This Afternoon
Sunny, with a high near 91. Breezy, with a south southwest wind around 20 mph, with gusts as high as 30 mph.
Tonight
Clear, with a low around 65. West southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday
Sunny, with a high near 88. Breezy, with a southwest wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Thursday Night
Clear, with a low around 56. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 30 mph.
Friday
Sunny, with a high near 80. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Friday Night
Clear, with a low around 56. Breezy.
Saturday
Sunny, with a high near 68. Breezy.
Saturday Night
Mostly clear, with a low around 49. Breezy.
Sunday
Sunny, with a high near 68.
Sunday Night
Clear, with a low around 48.
Monday
Sunny, with a high near 70.
Monday Night
Clear, with a low around 50.
Tuesday
Sunny, with a high near 71.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
11 Miles W Quartz Hill CA
34.65°N 118.43°W (Elev. 3832 ft)
34.65°N 118.43°W (Elev. 3832 ft)
1:52 pm PDT Jun 24, 2026
3pm PDT Jun 24, 2026-6pm PDT Jun 30, 2026



