Tiskilwa Weather Forecast

    • 67
    • 80

    Chance Rain Showers

    • 68
    • 85

    Chance Thunderstorms

    • 68
    • 84

    Chance Thunderstorms

    • 71
    • 86

    Chance Thunderstorms

    • 70
    • 87

    Rain Showers Likely

    • 66
    • 83

    Rain Showers Likely

Today 6 Aug Bureau

Cloudy with a chance of Showers late this Morning, then partly sunny with a slight chance of Showers this afternoon. Highs in the upper 70s. Northeast Winds around 5 Mph, becoming southeast this afternoon. Chance of rain 40 percent.

Tonight 6 Aug Bureau

Partly cloudy in the Evening, then becoming mostly cloudy. Patchy fog after midnight. Humid with Lows in the mid 60s. Southeast Winds around 5 Mph in the Evening, becoming light and variable.

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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

    71.3 °F

  • Highest 4 August, 2026

    84.2 °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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