Tiskilwa Weather Forecast

    • 63
    • 85

    Rain Showers

    • 67
    • 78

    Rain Showers

    • 66
    • 84

    Rain Showers Likely

    • 69
    • 86

    Chance Rain Showers

    • 66
    • 86

    Chance Rain Showers

    • 60
    • 81

    Chance Rain Showers

Today 15 Sep Bureau

Mostly cloudy with a chance of Thunderstorms. Humid with Highs in the lower 80s. South Winds 15 to 20 Mph with Gusts up to 30 Mph, Diminishing to around 10 Mph with Gusts up to 20 Mph this Morning, then becoming west this afternoon. Chance of precipitation 70 percent.

Tonight 15 Sep Bureau

Mostly cloudy with a chance of Thunderstorms. A chance of Showers in the Evening, then Showers likely after midnight. Lows in the lower 60s. North Winds 5 to 10 Mph, becoming northeast after midnight. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Tiskilwa Temperature Statistics

September Temperature

Illinois Valley Regional Airport (18.6 miles)

  • Lowest 11 September, 2026

    57.2 °F

  • Average September

    76.6 °F

  • Highest 1 September, 2026

    93.2 °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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