Petersburg Weather Forecast

    • 57
    • 78

    Partly Sunny

    • 57
    • 79

    Partly Sunny

    • 61
    • 80

    Mostly Cloudy

    • 45
    • 74

    Rain Showers Likely

    • 40
    • 64

    Mostly Sunny

    • 47
    • 71

    Mostly Sunny

Today 15 Oct Menard

Partly sunny. Highs in the upper 70s. Northeast Winds around 5 Mph.

Tonight 15 Oct Menard

Partly cloudy. Lows in the upper 50s. East Winds around 5 Mph.

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Petersburg Temperature Statistics

October Temperature

Springfield - Abraham Lincoln Capital Airport (14.3 miles)

  • Lowest 9 October, 2025

    41 °F

  • Average October

    66 °F

  • Highest 2 October, 2025

    88 °F

Climate (2020–Present)

Springfield - Abraham Lincoln Capital Airport (14.3 miles)

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  • Average Low 2020–2025

    44.9 °F

  • Average 2020–2025

    55.2 °F

  • Average High 2020–2025

    65.1 °F
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