Hazardous Weather Conditions
Current conditions at
GRASS MOUNTAIN (GMTC1)
Lat: 34.64078°NLon: 118.41435°WElev: 4626.0ft.NA
40°F
4°C
| Humidity | 64% |
| Wind Speed | SW 7 MPH |
| Barometer | NA |
| Dewpoint | 29°F (-2°C) |
| Visibility | NA |
| Wind Chill | 35°F (2°C) |
| Last update | 18 Feb 12:59 PM PST |
Extended Forecast for
11 Miles WSW Quartz Hill CA
Winter Storm Warning February 18, 02:06pm until February 20, 07:00am
NOW until 7:00am Fri

Winter Storm Warning
This Afternoon

High: 41 °F
Mostly Sunny
and BreezyTonight
Low: 31 °F
Partly Cloudy
then RainThursday

High: 42 °F
Rain and
WindyThursday Night
Low: 29 °F
Windy. Slight
Chance
Showers then
Partly CloudyFriday

High: 44 °F
Mostly Sunny
Friday Night

Low: 30 °F
Mostly Clear
Saturday

High: 49 °F
Mostly Sunny
Saturday Night

Low: 35 °F
Partly Cloudy
Detailed Forecast
This Afternoon
Mostly sunny, with a high near 41. Wind chill values as low as 30. Breezy, with a west northwest wind around 20 mph, with gusts as high as 30 mph.
Tonight
Rain after 4am. Low around 31. Wind chill values as low as 20. West northwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Rain. High near 42. Wind chill values as low as 20. Windy, with a west southwest wind 25 to 30 mph, with gusts as high as 50 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
A 20 percent chance of showers before 10pm. Partly cloudy, with a low around 29. Wind chill values as low as 15. Windy, with a west northwest wind 25 to 30 mph, with gusts as high as 40 mph.
Friday
Mostly sunny, with a high near 44. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around 30.
Saturday
Mostly sunny, with a high near 49.
Saturday Night
Partly cloudy, with a low around 35.
Sunday
Sunny, with a high near 56.
Sunday Night
Partly cloudy, with a low around 41.
Monday
A slight chance of rain. Partly sunny, with a high near 60.
Monday Night
A slight chance of rain. Mostly cloudy, with a low around 46.
Tuesday
A chance of rain. Mostly cloudy, with a high near 59.
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)
1:07 pm PST Feb 18, 2026
2pm PST Feb 18, 2026-6pm PST Feb 24, 2026



