Coralville Weather Forecast

    • 65
    • 81

    Chance Thunderstorms

    • 60
    • 81

    Slight Chance Thunderstorms

    • 64
    • 82

    Chance Thunderstorms

    • 64
    • 83

    Chance Thunderstorms

    • 60
    • 81

    Mostly Sunny

    • 61
    • 78

    Mostly Cloudy

    • 63
    • 80

    Partly Sunny

Today 18 Aug Johnson

Partly sunny with a chance of Showers and Thunderstorms. Near steady temperature in the upper 70s. West Winds around 10 Mph. Chance of rain 50 percent.

Tonight 18 Aug Johnson

Mostly cloudy. A chance of Showers and Thunderstorms, mainly this evening. Lows in the mid 60s. West Winds 5 to 10 Mph, becoming northwest after midnight. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Coralville Temperature Statistics

August Temperature

Iowa City Municipal Airport (3.7 miles)

  • Lowest 3 August, 2026

    62.1 °F

  • Average August

    74.9 °F

  • Highest 10 August, 2026

    90 °F

Climate (2021–2026)

Iowa City Municipal Airport (3.7 miles)

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  • Average Low 2021–2026

    42.6 °F

  • Average 2021–2026

    52.9 °F

  • Average High 2021–2026

    63.3 °F
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