Mount Vernon Weather Forecast

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    • 68

    Chance Rain Showers

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    • 77

    Rain Showers

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    • 81

    Rain Showers

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    • 72

    Rain Showers

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    Chance Rain Showers

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    Chance Rain Showers

Today 13 Sep Linn

Partly sunny with a 50 percent chance of Showers. Not as warm with Highs in the upper 60s. North Winds 5 to 10 Mph.

Tonight 13 Sep Linn

Mostly clear. Lows in the lower 50s. Northeast Winds around 5 Mph.

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Mount Vernon Temperature Statistics

September Temperature

Cedar Rapids Airport (15.5 miles)

  • Lowest 10 September, 2026

    60.1 °F

  • Average September

    78 °F

  • Highest 3 September, 2026

    94.6 °F

Climate (2021–2026)

Cedar Rapids Airport (15.5 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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