Tiskilwa Weather Forecast

    • 65
    • 66

    Rain Showers Likely

    • 53
    • 75

    Rain Showers

    • 46
    • 69

    Mostly Sunny

    • 48
    • 70

    Mostly Sunny

    • 44
    • 71

    Mostly Sunny

    • 43
    • 65

    Mostly Sunny

Today 30 Sep Bureau

Showers. Not as warm. Near steady temperature in the lower 60s. South Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 90 percent.

Tonight 30 Sep Bureau

Mostly cloudy. A chance of Showers in the Evening, then Showers likely after midnight. Near steady temperature in the mid 60s. Southeast Winds around 5 Mph. 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 26 September, 2026

    48.2 °F

  • Average September

    70.4 °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

    62.5 °F
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