Coralville Lake Weather Forecast

    • 66
    • 82

    Partly Sunny

    • 71
    • 89

    Rain Showers

    • 61
    • 83

    Rain Showers

    • 59
    • 81

    Mostly Sunny

    • 66
    • 84

    Chance Thunderstorms

    • 62
    • 83

    Chance Rain Showers

    • 63
    • 80

    Chance Rain Showers

Today 7 Sep Johnson

Mostly sunny. Highs in the lower 80s. Southeast Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 7 Sep Johnson

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the mid 60s. Southeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Coralville Lake Temperature Statistics

September Temperature

Cedar Rapids Airport (9.9 miles)

  • Lowest 1 September, 2026

    70.6 °F

  • Average September

    82.6 °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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