Current conditions at
GRASS MOUNTAIN (GMTC1)
Lat: 34.64078°NLon: 118.41435°WElev: 4626.0ft.NA
48°F
9°C
| Humidity | 26% |
| Wind Speed | SSW 18 MPH |
| Barometer | NA |
| Dewpoint | 15°F (-9°C) |
| Visibility | NA |
| Wind Chill | 41°F (5°C) |
| Last update | 20 Apr 06:59 AM PDT |
Extended Forecast for
5 Miles WSW Quartz Hill CA
Today

High: 69 °F
Sunny and
BreezyTonight
Low: 47 °F
Partly Cloudy
and Breezy
then Partly
CloudyTuesday

High: 60 °F
Rain Likely
and BreezyTuesday Night
Low: 43 °F
Chance Rain
and Breezy
then Partly
CloudyWednesday

High: 60 °F
Sunny
Wednesday Night

Low: 43 °F
Mostly Clear
Thursday

High: 65 °F
Sunny
Thursday Night

Low: 47 °F
Partly Cloudy
Friday

High: 64 °F
Mostly Sunny
Detailed Forecast
Today
Sunny, with a high near 69. Breezy, with a southwest wind 10 to 15 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 30 mph.
Tonight
Partly cloudy, with a low around 47. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Tuesday
Rain likely after 11am. Mostly cloudy, with a high near 60. Breezy, with a south southwest wind 15 to 20 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
A 50 percent chance of rain before 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 43. Breezy, with a west wind 20 to 25 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 40 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Sunny, with a high near 60. West wind 10 to 15 mph, with gusts as high as 30 mph.
Wednesday Night
Mostly clear, with a low around 43.
Thursday
Sunny, with a high near 65.
Thursday Night
Partly cloudy, with a low around 47.
Friday
Mostly sunny, with a high near 64.
Friday Night
Partly cloudy, with a low around 47. Breezy.
Saturday
Mostly sunny, with a high near 60.
Saturday Night
Partly cloudy, with a low around 45. Breezy.
Sunday
Mostly sunny, with a high near 58. Breezy.
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ABOUT THIS FORECAST
Point Forecast:
5 Miles WSW Quartz Hill CA
34.62°N 118.31°W (Elev. 3599 ft)
34.62°N 118.31°W (Elev. 3599 ft)
12:41 am PDT Apr 20, 2026
7am PDT Apr 20, 2026-6pm PDT Apr 26, 2026


