Petersburg Weather Forecast

    • 61
    • 82

    Slight Chance Thunderstorms

    • 59
    • 75

    Rain Showers

    • 55
    • 76

    Slight Chance Rain Showers

    • 59
    • 78

    Partly Sunny

    • 58
    • 80

    Slight Chance Thunderstorms

    • 59
    • 79

    Partly Sunny

Today 20 Jun Menard

Mostly sunny. Highs in the lower 80s. Northwest Winds around 5 Mph.

Tonight 20 Jun Menard

Mostly cloudy with a 20 percent chance of Showers. Near steady temperature in the mid 60s. West Winds around 5 Mph.

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  • Temperature Real-Time

Petersburg Temperature Statistics

June Temperature

Springfield - Abraham Lincoln Capital Airport (14.3 miles)

  • Lowest 3 June, 2026

    50.6 °F

  • Average June

    73.3 °F

  • Highest 10 June, 2026

    90.6 °F

Climate (2021–2026)

Springfield - Abraham Lincoln Capital Airport (14.3 miles)

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  • Average Low 2021–2026

    45 °F

  • Average 2021–2026

    55.5 °F

  • Average High 2021–2026

    65.6 °F
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