Petersburg Weather Forecast

    • 68
    • 88

    Slight Chance Thunderstorms

    • 69
    • 87

    Chance Thunderstorms

    • 70
    • 90

    Chance Thunderstorms

    • 65
    • 85

    Chance Thunderstorms

    • 66
    • 84

    Slight Chance Thunderstorms

    • 69
    • 87

    Chance Thunderstorms

Today 9 Jul Menard

Mostly sunny. Areas of fog this morning. A slight chance of Showers and Thunderstorms this afternoon. Highs in the upper 80s. Northwest Winds around 5 Mph. Chance of rain 20 percent.

Tonight 9 Jul Menard

Mostly clear in the Evening, then becoming partly cloudy. Lows in the upper 60s. Northwest Winds around 5 Mph, becoming south after midnight.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Petersburg Temperature Statistics

July Temperature

Springfield - Abraham Lincoln Capital Airport (14.3 miles)

  • Lowest 2 July, 2025

    62.1 °F

  • Average July

    78.2 °F

  • Highest 3 July, 2025

    90 °F

Climate (2020–Present)

Springfield - Abraham Lincoln Capital Airport (14.3 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    44.8 °F

  • Average 2020–2025

    55 °F

  • Average High 2020–2025

    64.9 °F
Get WillyWeather+ to remove ads