Mount San Antonio Weather Forecast

    • 20
    • 28

    Breezy

    • 24
    • 45

    Breezy

    • 36
    • 52

    Mostly Sunny

    • 38
    • 51

    Mostly Sunny

    • 41
    • 53

    Mostly Sunny

    • 40
    • 51

    Partly Sunny

    • 38
    • 47

    Mostly Sunny

Today 20 Apr Los Angeles County Mountains excluding the Santa Monica Range

Sunny. Highs from the upper 60s to mid 70s at low Elevations to the upper 50s to mid 60s at high Elevations. North Winds 10 to 20 Mph.

Tonight 20 Apr Los Angeles County Mountains excluding the Santa Monica Range

Mostly clear. Lows from the upper 40s to mid 50s at low Elevations to the mid 40s in Colder Valleys and Peaks. North Winds 10 to 20 Mph with Gusts to 30 Mph shifting to the east after midnight.

Graph Plots Open in Graphs
  • Temperature Forecast NOAA

  • Temperature Real-Time

Mount San Antonio Temperature Statistics

April Temperature

Gray Butte Field Airport (19.3 miles)

  • Lowest 17 April, 2018

    39 °F
  • Average April

    64 °F
  • Highest 10 April, 2018

    87.4 °F

Climate (2011–Present)

Gray Butte Field Airport (19.3 miles)

Take a look at our website widgetsAvailable free! Find Out More
  • Average Low 2011–Present

    48.6 °F
  • Average 2011–Present

    62.7 °F
  • Average High 2011–Present

    76.1 °F
Get an account to remove ads