Coralville Lake Weather Forecast

    • 61
    • 81

    Mostly Sunny

    • 66
    • 82

    Slight Chance Thunderstorms

    • 60
    • 82

    Chance Rain Showers

    • 61
    • 76

    Chance Thunderstorms

    • 66
    • 84

    Rain Showers Likely

    • 59
    • 75

    Chance Rain Showers

    • 61
    • 71

    Chance Rain Showers

Today 10 Sep Johnson

Sunny. Near steady temperature in the upper 70s. North Winds around 5 Mph.

Tonight 10 Sep Johnson

Mostly clear. Lows in the upper 50s. East Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Coralville Lake Temperature Statistics

September Temperature

Cedar Rapids Airport (9.9 miles)

  • Lowest 7 September, 2026

    64.7 °F

  • Average September

    79.7 °F

  • Highest 3 September, 2026

    94.6 °F

Climate (2021–2026)

Cedar Rapids Airport (9.9 miles)

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  • Average Low 2021–2026

    40.6 °F

  • Average 2021–2026

    51.1 °F

  • Average High 2021–2026

    61.5 °F
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