Diona Weather Forecast

    • 50
    • 69

    Increasing Clouds

    • 51
    • 68

    Mostly Cloudy

    • 51
    • 64

    Chance Rain Showers

    • 53
    • 64

    Chance Rain Showers

    • 51
    • 67

    Chance Rain Showers

    • 52
    • 71

    Partly Sunny

Today 23 May Coles

Mostly sunny. Not as cool with Highs in the upper 60s. Northwest Winds 5 to 10 Mph.

Tonight 23 May Coles

Mostly clear. Patchy fog. Lows in the lower 40s. West Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Diona Temperature Statistics

May Temperature

Mattoon / Charleston, Coles County Memorial Airport (9.9 miles)

  • Lowest 9 May, 2025

    44.7 °F

  • Average May

    63.5 °F

  • Highest 15 May, 2025

    86.6 °F

Climate (2020–Present)

Mattoon / Charleston, Coles County Memorial Airport (9.9 miles)

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  • Average Low 2020–2025

    45.8 °F

  • Average 2020–2025

    55.1 °F

  • Average High 2020–2025

    64.5 °F
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