Upland Weather Forecast

    • 67
    • 92

    Partly Sunny

    • 70
    • 95

    Hot

    • 73
    • 101

    Hot

    • 68
    • 98

    Hot

    • 66
    • 90

    Partly Sunny

    • 66
    • 91

    Mostly Sunny

Today 13 Jul San Bernardino and Riverside County Valleys-The Inland Empire

Partly cloudy. A slight chance of Showers and Thunderstorms in the afternoon. Highs 90 to 97. Light Winds becoming west 10 Mph in the afternoon. Chance of measurable precipitation 20 percent.

Tonight 13 Jul San Bernardino and Riverside County Valleys-The Inland Empire

Partly cloudy this evening. Becoming mostly clear. Lows 63 to 68. Areas of Winds west to 10 Mph this evening becoming light.

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Upland Temperature Statistics

July Temperature

Ontario International Airport (5 miles)

  • Lowest 3 July, 2026

    59.6 °F

  • Average July

    77.6 °F

  • Highest 7 July, 2026

    97.6 °F

Climate (2021–2026)

Ontario International Airport (5 miles)

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  • Average Low 2021–2026

    55.8 °F

  • Average 2021–2026

    67 °F

  • Average High 2021–2026

    79.3 °F
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