Flatville Weather Forecast

    • 40
    • 47

    Mostly Cloudy

    • 31
    • 55

    Mostly Cloudy

    • 46
    • 51

    Chance Rain

    • 49
    • 56

    Mostly Cloudy

    • 41
    • 62

    Mostly Cloudy

    • 31
    • 60

    Mostly Cloudy

Today 22 Dec Champaign

Mostly cloudy. Near steady temperature in the mid 40s. Temperature falling into the lower 40s late. South Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 22 Dec Champaign

Mostly cloudy and not as cool. Near steady temperature in the lower 40s. Southwest Winds around 10 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Flatville Temperature Statistics

December Temperature

Rantoul National Aviation Center Airport (5.6 miles)

  • Lowest 14 December, 2025

    -12.6 °F

  • Average December

    23 °F

  • Highest 18 December, 2025

    50.7 °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

    52.7 °F

  • Average High 2020–2025

    62.3 °F
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