Flatville Weather Forecast

    • 51
    • 68

    Increasing Clouds

    • 57
    • 68

    Rain Showers

    • 58
    • 77

    Slight Chance Rain Showers

    • 59
    • 80

    Chance Rain Showers

    • 61
    • 80

    Chance Rain Showers

    • 64
    • 82

    Chance Thunderstorms

Today 21 May Champaign

Mostly sunny. Highs in the upper 60s. East Winds 15 to 20 Mph.

Tonight 21 May Champaign

Mostly cloudy. Lows in the lower 50s. East Winds around 10 Mph with Gusts up to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Flatville Temperature Statistics

May Temperature

Rantoul National Aviation Center Airport (5.6 miles)

  • Lowest 7 May, 2026

    37.4 °F

  • Average May

    59 °F

  • Highest 17 May, 2026

    85.1 °F

Climate (2021–Present)

Rantoul National Aviation Center Airport (5.6 miles)

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  • Average Low 2021–2026

    43.3 °F

  • Average 2021–2026

    53 °F

  • Average High 2021–2026

    62.7 °F
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