Riverside Weather Forecast

    • 62
    • 85

    Thunderstorms

    • 62
    • 86

    Rain Showers Likely

    • 68
    • 89

    Rain Showers Likely

    • 65
    • 88

    Thunderstorms Likely

    • 50
    • 81

    Chance Rain Showers

    • 48
    • 70

    Partly Sunny

Today 15 May Washington

Sunny. Highs in the mid 80s. South Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 15 May Washington

Partly cloudy in the Evening, then becoming mostly cloudy. A chance of Thunderstorms. A chance of Showers in the Evening, then Showers likely after midnight. Lows in the lower 60s. South Winds 10 to 15 Mph, becoming southwest 5 to 10 Mph after midnight. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Riverside Temperature Statistics

May Temperature

Iowa City Municipal Airport (10.6 miles)

  • Lowest 7 May, 2026

    34 °F

  • Average May

    57.2 °F

  • Highest 4 May, 2026

    82 °F

Climate (2021–Present)

Iowa City Municipal Airport (10.6 miles)

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  • Average Low 2021–2026

    42.6 °F

  • Average 2021–2026

    52.9 °F

  • Average High 2021–2026

    63.2 °F
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