Hannibal Weather Forecast

    • 47
    • 73

    Sunny

    • 53
    • 78

    Mostly Sunny

    • 59
    • 81

    Partly Sunny

    • 62
    • 89

    Mostly Sunny

    • 64
    • 91

    Mostly Sunny

    • 65
    • 93

    Partly Sunny

Today 7 Sep Marion

Sunny. Highs in the lower 70s. North Winds around 5 Mph.

Tonight 7 Sep Marion

Clear. Lows in the upper 40s. Northeast Winds around 5 Mph, becoming southeast after midnight.

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Hannibal Temperature Statistics

September Temperature

Quincy Regional Airport-Baldwin Field (17.4 miles)

  • Lowest 4 September, 2025

    48 °F

  • Average September

    64.1 °F

  • Highest 2 September, 2025

    81 °F

Climate (2020–Present)

Quincy Regional Airport-Baldwin Field (17.4 miles)

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  • Average Low 2020–2025

    45.5 °F

  • Average 2020–2025

    55 °F

  • Average High 2020–2025

    64.7 °F
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