Missouri Valley Weather Forecast

    • 58
    • 75

    Rain Showers Likely

    • 58
    • 74

    Chance Thunderstorms

    • 61
    • 77

    Chance Rain Showers

    • 61
    • 80

    Slight Chance Thunderstorms

    • 56
    • 81

    Slight Chance Thunderstorms

    • 55
    • 77

    Mostly Sunny

Today 18 Sep Harrison

Patchy fog early this morning. Mostly cloudy Early, then a slight chance of Showers this morning. Mostly cloudy with a chance of Showers with a slight chance of Thunderstorms this afternoon. Highs in the mid 70s. East Winds around 5 Mph, becoming south. Chance of rain 50 percent.

Tonight 18 Sep Harrison

Mostly cloudy with a chance of Showers with a slight chance of Thunderstorms. Lows in the upper 50s. South Winds around 5 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Missouri Valley Temperature Statistics

September Temperature

Blair Municipal Airport (14.9 miles)

  • Lowest 6 September, 2025

    43.3 °F

  • Average September

    68.6 °F

  • Highest 13 September, 2025

    95.2 °F

Climate (2020–Present)

Blair Municipal Airport (14.9 miles)

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  • Average Low 2020–2025

    42.4 °F

  • Average 2020–2025

    52.2 °F

  • Average High 2020–2025

    62.4 °F
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