Current conditions at
GRASS MOUNTAIN (GMTC1)
Lat: 34.64078°NLon: 118.41435°WElev: 4626.0ft.NA
55°F
13°C
| Humidity | 24% |
| Wind Speed | SSW 4 MPH |
| Barometer | NA |
| Dewpoint | 19°F (-7°C) |
| Visibility | NA |
| Last update | 09 Feb 01:59 AM PST |
Extended Forecast for
11 Miles WSW Quartz Hill CA
Overnight

Low: 47 °F
Partly Cloudy
Monday

High: 66 °F
Partly Sunny
Monday Night

Low: 48 °F
Mostly Cloudy
Tuesday
High: 55 °F
Breezy.
Mostly Cloudy
then Chance
RainTuesday Night

Low: 43 °F
Rain Likely
and WindyWednesday

High: 51 °F
Chance Rain
Wednesday Night

Low: 36 °F
Partly Cloudy
Thursday

High: 53 °F
Mostly Sunny
Thursday Night

Low: 38 °F
Mostly Clear
Detailed Forecast
Overnight
Partly cloudy, with a low around 47. Northwest wind around 15 mph, with gusts as high as 20 mph.
Monday
Partly sunny, with a high near 66. Northwest wind around 10 mph becoming east in the afternoon. Winds could gust as high as 15 mph.
Monday Night
Mostly cloudy, with a low around 48. North northeast wind 5 to 10 mph becoming south after midnight.
Tuesday
A 30 percent chance of rain after 4pm. Mostly cloudy, with a high near 55. 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. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Rain likely, mainly after 10pm. Mostly cloudy, with a low around 43. Windy, with a south southwest wind 25 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
A 50 percent chance of rain. Partly sunny, with a high near 51.
Wednesday Night
Partly cloudy, with a low around 36.
Thursday
Mostly sunny, with a high near 53.
Thursday Night
Mostly clear, with a low around 38.
Friday
Sunny, with a high near 57.
Friday Night
Mostly clear, with a low around 39.
Saturday
Mostly sunny, with a high near 56.
Saturday Night
A slight chance of rain. Mostly cloudy, with a low around 39.
Sunday
Rain likely. Mostly cloudy, with a high near 48. Breezy.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
11 Miles WSW Quartz Hill CA
34.63°N 118.39°W (Elev. 3228 ft)
34.63°N 118.39°W (Elev. 3228 ft)
1:41 am PST Feb 9, 2026
2am PST Feb 9, 2026-6pm PST Feb 15, 2026


