Arthur Weather Forecast

    • 66
    • 81

    Rain Showers Likely

    • 61
    • 82

    Becoming Sunny

    • 63
    • 84

    Chance Thunderstorms

    • 60
    • 82

    Mostly Sunny

    • 58
    • 81

    Partly Sunny

    • 61
    • 81

    Partly Sunny

    • 64
    • 84

    Partly Sunny

Today 19 Aug Douglas

Mostly cloudy with a chance of Showers and Thunderstorms. Highs around 80. Southwest Winds around 5 Mph. Chance of rain 50 percent.

Tonight 19 Aug Douglas

Mostly cloudy. A chance of Showers and Thunderstorms, mainly this evening. Patchy fog after midnight. Lows in the mid 60s. North Winds around 5 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Arthur Temperature Statistics

August Temperature

Mattoon / Charleston, Coles County Memorial Airport (19.3 miles)

  • Lowest 3 August, 2026

    61.6 °F

  • Average August

    77.5 °F

  • Highest 10 August, 2026

    91.7 °F

Climate (2021–2026)

Mattoon / Charleston, Coles County Memorial Airport (19.3 miles)

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  • Average Low 2021–2026

    45.9 °F

  • Average 2021–2026

    55.4 °F

  • Average High 2021–2026

    65 °F
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