Coralville Lake Weather Forecast

    • 52
    • 63

    Chance Rain Showers

    • 69
    • 71

    Rain Showers

    • 61
    • 77

    Rain Showers

    • 66
    • 73

    Rain Showers

    • 64
    • 77

    Rain Showers Likely

    • 64
    • 76

    Chance Rain Showers

    • 60
    • 79

    Slight Chance Rain Showers

Today 13 Sep Johnson

Partly sunny with a 50 percent chance of Showers. Not as warm. Near steady temperature in the mid 60s. Northeast Winds 5 to 10 Mph.

Tonight 13 Sep Johnson

Partly sunny Early, then becoming partly cloudy. A slight chance of Showers early. Lows in the lower 50s. Northeast Winds around 5 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Coralville Lake Temperature Statistics

September Temperature

Cedar Rapids Airport (9.9 miles)

  • Lowest 11 September, 2026

    55.9 °F

  • Average September

    77.4 °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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