Flatville Weather Forecast

    • 63
    • 89

    Chance Thunderstorms

    • 62
    • 86

    Chance Thunderstorms

    • 63
    • 83

    Rain Showers Likely

    • 62
    • 81

    Chance Thunderstorms

    • 60
    • 79

    Chance Rain Showers

    • 58
    • 77

    Chance Rain Showers

Today 19 Sep Champaign

Mostly sunny. Highs around 90. South Winds around 5 Mph.

Tonight 19 Sep Champaign

Mostly cloudy. A chance of Showers and Thunderstorms after midnight. Lows in the lower 60s. Southeast Winds around 5 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Flatville Temperature Statistics

September Temperature

Rantoul National Aviation Center Airport (5.6 miles)

  • Lowest 7 September, 2025

    43 °F

  • Average September

    67 °F

  • Highest 14 September, 2025

    90.5 °F

Climate (2020–Present)

Rantoul National Aviation Center Airport (5.6 miles)

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  • Average Low 2020–2025

    43.1 °F

  • Average 2020–2025

    52.6 °F

  • Average High 2020–2025

    62.3 °F
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