Tiskilwa Weather Forecast

    • 69
    • 83

    Severe Tstms

    • 68
    • 80

    Rain Showers

    • 70
    • 83

    Chance Thunderstorms

    • 73
    • 88

    Chance Rain Showers

    • 66
    • 85

    Slight Chance Thunderstorms

    • 63
    • 80

    Partly Sunny

Today 12 Aug Bureau

Showers with a chance of Thunderstorms. Some Thunderstorms may be severe with damaging Winds and large hail late this morning. Some Thunderstorms may produce damaging Winds and large hail this afternoon. Highs in the lower 80s. North Winds around 5 Mph, becoming southwest this afternoon. Chance of rain 90 percent.

Tonight 12 Aug Bureau

Partly cloudy in the Evening, then becoming mostly cloudy. A chance of Showers and Thunderstorms. Humid with Lows in the upper 60s. East Winds around 5 Mph. Chance of rain 40 percent.

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  • Temperature Real-Time

Tiskilwa Temperature Statistics

August Temperature

Illinois Valley Regional Airport (18.6 miles)

  • Lowest 3 August, 2026

    60.8 °F

  • Average August

    74 °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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