National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

GRASS MOUNTAIN (GMTC1)

Lat: 34.64078°NLon: 118.41435°WElev: 4626.0ft.

NA

56°F

13°C

Humidity 31%
Wind Speed E 3 MPH
Barometer NA
Dewpoint 26°F (-3°C)
Visibility NA
Last update 21 Jan 10:59 AM PST
Extended Forecast for

13 Miles NNE Santa Clarita CA

  • Today

    Today: Mostly cloudy, with a high near 65. Northeast wind 5 to 10 mph.

    High: 65 °F

    Mostly Cloudy

  • Tonight

    Tonight: A 30 percent chance of showers after 4am. Cloudy, with a low around 50. Northwest wind around 5 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 50 °F

    Cloudy then
    Chance
    Showers

  • Thursday

    Thursday: A 30 percent chance of showers, mainly before 10am. Mostly cloudy, with a high near 62. Northwest wind 5 to 10 mph becoming south in the morning. New precipitation amounts of less than a tenth of an inch possible.

    High: 62 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 44. West northwest wind around 5 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 44 °F

    Chance
    Showers

  • Friday

    Friday: A 20 percent chance of showers. Mostly sunny, with a high near 60. Southwest wind around 10 mph, with gusts as high as 15 mph.

    High: 60 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 41.

    Low: 41 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 65. Northeast wind 5 to 10 mph.
Tonight
A 30 percent chance of showers after 4am. Cloudy, with a low around 50. Northwest wind around 5 mph. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A 30 percent chance of showers, mainly before 10am. Mostly cloudy, with a high near 62. Northwest wind 5 to 10 mph becoming south in the morning. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 44. West northwest wind around 5 mph. New precipitation amounts of less than a tenth of an inch possible.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 60. Southwest wind around 10 mph, with gusts as high as 15 mph.
Friday Night
Partly cloudy, with a low around 44.
Saturday
Sunny, with a high near 62.
Saturday Night
Clear, with a low around 41.
Sunday
Sunny, with a high near 59.
Sunday Night
Partly cloudy, with a low around 42.
Monday
Sunny, with a high near 60.
Monday Night
Mostly clear, with a low around 42.
Tuesday
Sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
13 Miles NNE Santa Clarita CA
 34.6°N 118.44°W (Elev. 2365 ft)
Last Update:
8:41 am PST Jan 21, 2026
Forecast Valid:
11am PST Jan 21, 2026-6pm PST Jan 27, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation