Peoria Lake Weather Forecast

    • 74
    • 93

    Slight Chance Thunderstorms

    • 75
    • 97

    Hot

    • 75
    • 97

    Hot

    • 75
    • 97

    Slight Chance Thunderstorms

    • 71
    • 94

    Chance Thunderstorms

    • 67
    • 86

    Partly Sunny

Today 15 Aug Tazewell

Sunny. Highs in the lower 90s. South Winds around 5 Mph. Heat index Values up to 103 this afternoon.

Tonight 15 Aug Tazewell

Mostly clear in the Evening, then partly cloudy with a slight chance of Showers and Thunderstorms after midnight. Humid with Lows in the lower 70s. South Winds around 5 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Peoria Lake Temperature Statistics

August Temperature

Peoria - General Downing-Peoria International Airport (6.8 miles)

  • Lowest 3 August, 2025

    59.6 °F

  • Average August

    76 °F

  • Highest 8 August, 2025

    91.7 °F

Climate (2020–Present)

Peoria - General Downing-Peoria International Airport (6.8 miles)

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  • Average Low 2020–2025

    45.2 °F

  • Average 2020–2025

    54.5 °F

  • Average High 2020–2025

    64 °F
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