Hazardous Weather Conditions
Current conditions at
GRASS MOUNTAIN (GMTC1)
Lat: 34.64078°NLon: 118.41435°WElev: 4626.0ft.NA
79°F
26°C
| Humidity | 29% |
| Wind Speed | SSW 10 MPH |
| Barometer | NA |
| Dewpoint | 44°F (7°C) |
| Visibility | NA |
| Heat Index | 79°F (26°C) |
| Last update | 24 Aug 08:59 AM PDT |
Extended Forecast for
5 Miles W Quartz Hill CA
Extreme Heat Watch August 25, 10:00am until August 28, 08:00pm
Today
High: 99 °F
Mostly Sunny
then Sunny
and BreezyTonight
Low: 75 °F
Mostly Clear
and Breezy
then Mostly
ClearTuesday

High: 102 °F
Hot
Tuesday Night

Low: 76 °F
Mostly Clear
Wednesday

High: 102 °F
Hot
Wednesday Night
Low: 76 °F
Mostly Clear
and Breezy
then Mostly
ClearThursday

High: 102 °F
Hot
Thursday Night
Low: 78 °F
Partly Cloudy
and Breezy
then Partly
CloudyFriday
High: 97 °F
Mostly Sunny
then Mostly
Sunny and
Breezy
Detailed Forecast
Today
Sunny and hot, with a high near 99. 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.
Tonight
Mostly clear, with a low around 75. Breezy, with a southwest wind 10 to 20 mph becoming northwest in the evening. Winds could gust as high as 30 mph.
Tuesday
Sunny and hot, with a high near 102. North northwest wind 5 to 10 mph becoming west southwest 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 76. West southwest wind around 15 mph becoming northwest after midnight. Winds could gust as high as 25 mph.
Wednesday
Sunny and hot, with a high near 102. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
Mostly clear, with a low around 76. Breezy.
Thursday
Sunny and hot, with a high near 102.
Thursday Night
Partly cloudy, with a low around 78. Breezy.
Friday
Mostly sunny and hot, with a high near 97. Breezy.
Friday Night
Mostly clear, with a low around 77. Breezy.
Saturday
Sunny, with a high near 95. Breezy.
Saturday Night
Clear, with a low around 74. Breezy.
Sunday
Sunny, with a high near 92. Breezy.
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ABOUT THIS FORECAST
Point Forecast:
5 Miles W Quartz Hill CA
34.66°N 118.32°W (Elev. 2884 ft)
34.66°N 118.32°W (Elev. 2884 ft)
1:26 am PDT Aug 24, 2026
9am PDT Aug 24, 2026-6pm PDT Aug 30, 2026



