Downtown Riverside Weather Forecast

    • 54
    • 71

    Decreasing Clouds

    • 53
    • 69

    Slight Chance Rain

    • 53
    • 72

    Partly Sunny

    • 55
    • 77

    Mostly Sunny

    • 58
    • 84

    Sunny

    • 59
    • 88

    Sunny

Today 26 May San Bernardino and Riverside County Valleys-The Inland Empire

Patchy fog this morning. Cloudy with a slight chance of rain this Morning, then partly cloudy this afternoon. Highs 67 to 72. Areas of Winds south 10 to 20 Mph. Gusts to 30 Mph this afternoon. Chance of measurable precipitation 20 percent.

Tonight 26 May San Bernardino and Riverside County Valleys-The Inland Empire

Partly cloudy in the Evening, then mostly cloudy with a slight chance of rain overnight. Patchy fog overnight. Lows 46 to 52. Areas of Winds south 10 to 20 Mph. Gusts to 30 Mph in the evening. Chance of measurable precipitation 20 percent.

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Downtown Riverside Temperature Statistics

May Temperature

Riverside Municipal Airport (3.7 miles)

  • Lowest 6 May, 2026

    49.6 °F

  • Average May

    69.3 °F

  • Highest 11 May, 2026

    97.6 °F

Climate (2021–Present)

Riverside Municipal Airport (3.7 miles)

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  • Average Low 2021–2026

    54.9 °F

  • Average 2021–2026

    67.1 °F

  • Average High 2021–2026

    80.3 °F
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