Hazardous Weather Conditions
Current conditions at
GRASS MOUNTAIN (GMTC1)
Lat: 34.64078°NLon: 118.41435°WElev: 4626.0ft.NA
42°F
6°C
| Humidity | 50% |
| Wind Speed | E 4 MPH |
| Barometer | NA |
| Dewpoint | 25°F (-4°C) |
| Visibility | NA |
| Wind Chill | 40°F (4°C) |
| Last update | 29 Dec 10:59 AM PST |
Extended Forecast for
11 Miles W Quartz Hill CA
High Wind Warning December 29, 12:08pm until December 29, 03:00pm
NOW until 3:00pm Mon

High Wind Warning
This Afternoon

High: 50 °F
Sunny and
WindyTonight

Low: 40 °F
Increasing
Clouds and
WindyTuesday

High: 51 °F
Mostly Cloudy
and BreezyTuesday Night

Low: 45 °F
Chance Rain
and BreezyWednesday

High: 49 °F
Rain and
BreezyWednesday Night

Low: 43 °F
Rain and
BreezyNew Year's Day

High: 48 °F
Rain
Thursday Night

Low: 46 °F
Rain Likely
Detailed Forecast
This Afternoon
Sunny, with a high near 50. Windy, with a northeast wind around 30 mph, with gusts as high as 45 mph.
Tonight
Increasing clouds, with a low around 40. Wind chill values as low as 30. Windy, with a northeast wind 25 to 30 mph, with gusts as high as 40 mph.
Tuesday
Mostly cloudy, with a high near 51. Wind chill values as low as 30 early. Breezy, with a northeast wind around 25 mph, with gusts as high as 35 mph.
Tuesday Night
A 30 percent chance of rain, mainly after 4am. Mostly cloudy, with a low around 45. Breezy, with a northeast wind around 20 mph, with gusts as high as 30 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Rain, mainly after 10am. High near 49. Breezy, with an east northeast wind 15 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
Rain. Low around 43. Breezy. Chance of precipitation is 90%.
New Year's Day
Rain. High near 48. Chance of precipitation is 90%.
Thursday Night
Rain likely, mainly before 4am. Mostly cloudy, with a low around 46.
Friday
Rain likely, mainly after 10am. Mostly cloudy, with a high near 49.
Friday Night
Rain likely, mainly before 4am. Mostly cloudy, with a low around 47.
Saturday
Rain likely. Mostly cloudy, with a high near 49.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 45.
Sunday
A chance of rain. Partly sunny, with a high near 49.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
11 Miles W Quartz Hill CA
34.65°N 118.43°W (Elev. 3832 ft)
34.65°N 118.43°W (Elev. 3832 ft)
1:07 am PST Dec 29, 2025
12pm PST Dec 29, 2025-6pm PST Jan 4, 2026



