Tiskilwa Weather Forecast

    • 71
    • 82

    Rain Showers

    • 75
    • 90

    Partly Sunny

    • 75
    • 94

    Mostly Sunny

    • 74
    • 94

    Slight Chance Thunderstorms

    • 72
    • 90

    Slight Chance Thunderstorms

    • 68
    • 88

    Chance Rain Showers

    • 66
    • 87

    Partly Sunny

Today 30 Aug Bureau

Mostly cloudy with scattered Showers with a slight chance of Thunderstorms. Near steady temperature in the lower 80s. South Winds 10 to 15 Mph. Chance of rain 50 percent.

Tonight 30 Aug Bureau

Mostly cloudy with a slight chance of Showers and Thunderstorms. Near steady temperature in the mid 70s. South Winds 10 to 15 Mph. Chance of rain 20 percent.

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Tiskilwa Temperature Statistics

August Temperature

Illinois Valley Regional Airport (18.6 miles)

  • Lowest 23 August, 2026

    55.4 °F

  • Average August

    72.7 °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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