Hazardous Weather Conditions
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 Index | 91°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
NOW until 8:00pm Fri

Extreme Heat Warning
This Afternoon

High: 96 °F
Hot and
BreezyTonight
Low: 72 °F
Mostly Clear
and Breezy
then Mostly
CloudyThursday

High: 94 °F
Slight Chance
T-stormsThursday Night
Low: 72 °F
Slight Chance
Showers then
Mostly CloudyFriday
High: 92 °F
Mostly Sunny
then Mostly
Sunny and
BreezyFriday Night
Low: 71 °F
Mostly Clear
and Breezy
then Mostly
ClearSaturday
High: 89 °F
Sunny then
Sunny and
BreezySaturday Night
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.
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ABOUT THIS FORECAST
Point Forecast:
5 Miles WSW Quartz Hill CA
34.62°N 118.28°W (Elev. 3340 ft)
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



