Hazardous Weather Conditions
Current conditions at
GRASS MOUNTAIN (GMTC1)
Lat: 34.64078°NLon: 118.41435°WElev: 4626.0ft.NA
97°F
36°C
| Humidity | 15% |
| Wind Speed | SSW 14 MPH |
| Barometer | NA |
| Dewpoint | 42°F (6°C) |
| Visibility | NA |
| Heat Index | 93°F (34°C) |
| Last update | 25 Aug 01:59 PM PDT |
Extended Forecast for
5 Miles WSW Quartz Hill CA
Extreme Heat Warning August 25, 02:36pm until August 28, 08:00pm
NOW until 8:00pm Fri

Extreme Heat Warning
This Afternoon

High: 96 °F
Hot
Tonight

Low: 68 °F
Mostly Clear
Wednesday
High: 96 °F
Sunny then
Sunny and
BreezyWednesday Night
Low: 69 °F
Partly Cloudy
and Breezy
then Partly
CloudyThursday
High: 95 °F
Mostly Sunny
then Mostly
Sunny and
BreezyThursday Night
Low: 69 °F
Mostly Cloudy
and Breezy
then Mostly
CloudyFriday
High: 93 °F
Partly Sunny
then Mostly
Sunny and
BreezyFriday Night
Low: 74 °F
Partly Cloudy
and Breezy
then Partly
Cloudy
Detailed Forecast
This Afternoon
Mostly sunny and hot, with a high near 96. West southwest wind around 15 mph, with gusts as high as 25 mph.
Tonight
Mostly clear, with a low around 68. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday
Sunny and hot, with a high near 96. Breezy, with an east wind 5 to 10 mph becoming west southwest 15 to 20 mph in the morning. Winds could gust as high as 30 mph.
Wednesday Night
Partly cloudy, with a low around 69. Breezy, with a west northwest wind 10 to 20 mph, with gusts as high as 30 mph.
Thursday
Mostly sunny, with a high near 95. Breezy, with a west wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Thursday Night
Mostly cloudy, with a low around 69. Breezy.
Friday
Mostly sunny, with a high near 93. Breezy.
Friday Night
Partly cloudy, with a low around 74. Breezy.
Saturday
Sunny, with a high near 92. Breezy.
Saturday Night
Mostly clear, with a low around 71. Breezy.
Sunday
Sunny, with a high near 88. Breezy.
Sunday Night
Mostly clear, with a low around 67. Breezy.
Monday
Sunny, with a high near 84. 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)
12:31 pm PDT Aug 25, 2026
2pm PDT Aug 25, 2026-6pm PDT Aug 31, 2026



