Tiskilwa Weather Forecast

    • 73
    • 82

    Rain Showers Likely

    • 65
    • 86

    Slight Chance Thunderstorms

    • 63
    • 81

    Mostly Sunny

    • 67
    • 83

    Rain Showers Likely

    • 59
    • 78

    Partly Sunny

    • 59
    • 77

    Partly Sunny

Today 15 Aug Bureau

Partly sunny with a slight chance of Showers and Thunderstorms. Highs in the lower 80s. Southwest Winds around 5 Mph. Chance of rain 20 percent.

Tonight 15 Aug Bureau

Mostly cloudy with a chance of Thunderstorms. A chance of Showers in the Evening, then Showers likely after midnight. Humid with Lows in the lower 70s. Southwest Winds around 5 Mph. Chance of rain 60 percent.

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Tiskilwa Temperature Statistics

August Temperature

Illinois Valley Regional Airport (18.6 miles)

  • Lowest 3 August, 2026

    60.8 °F

  • Average August

    74.1 °F

  • Highest 10 August, 2026

    89.6 °F

Climate (2021–2026)

Illinois Valley Regional Airport (18.6 miles)

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  • Average Low 2021–2026

    43.3 °F

  • Average 2021–2026

    52.9 °F

  • Average High 2021–2026

    62.6 °F
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