NE - Sterling Weather Forecast

    • 70
    • 97

    Hot

    • 69
    • 99

    Hot

    • 70
    • 95

    Partly Sunny

    • 68
    • 92

    Chance Thunderstorms

    • 68
    • 90

    Chance Rain Showers

    • 67
    • 90

    Slight Chance Thunderstorms

Today 15 Sep San Bernardino and Riverside County Valleys-The Inland Empire

Mostly sunny. Warmer. Highs 92 to 98. Areas of Winds east to 10 Mph becoming southwest with Gusts to 25 Mph this afternoon.

Tonight 15 Sep San Bernardino and Riverside County Valleys-The Inland Empire

Clear. Lows 64 to 69. Areas of Winds west to 10 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

NE - Sterling Temperature Statistics

September Temperature

San Bernardino Intl. Airport (3.7 miles)

  • Lowest 9 September, 2025

    60.8 °F

  • Average September

    75.6 °F

  • Highest 1 September, 2025

    100.4 °F

Climate (2020–Present)

San Bernardino Intl. Airport (3.7 miles)

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  • Average Low 2020–2025

    54.1 °F

  • Average 2020–2025

    63.2 °F

  • Average High 2020–2025

    80.5 °F
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