Summit Heights Weather Forecast

    • 60
    • 81

    Breezy

    • 55
    • 80

    Breezy

    • 50
    • 73

    Windy

    • 50
    • 60

    Windy

    • 49
    • 66

    Breezy

    • 48
    • 65

    Partly Sunny

Today 16 Jan San Bernardino and Riverside County Valleys-The Inland Empire

Mostly sunny. Highs 82 to 87. Areas of Winds north 15 to 25 Mph. Gusts to 35 Mph. Becoming 40 Mph in the afternoon.

Tonight 16 Jan San Bernardino and Riverside County Valleys-The Inland Empire

Clear. Lows 40 to 50 in wind Sheltered Areas to 48 to 58 in warmer Locations. Areas of Winds north 15 to 25 Mph with Gusts to 35 Mph.

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Summit Heights Temperature Statistics

January Temperature

Ontario International Airport (8.7 miles)

  • Lowest 4 January, 2021

    42.1 °F
  • Average January

    57.4 °F
  • Highest 14 January, 2021

    86 °F

Climate (2010–Present)

Ontario International Airport (8.7 miles)

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  • Average Low 2010–Present

    56.5 °F
  • Average 2010–Present

    66.8 °F
  • Average High 2010–Present

    79.8 °F
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