Martinsville Weather Forecast

    • 71
    • 90

    Mostly Sunny

    • 71
    • 89

    Mostly Sunny

    • 72
    • 89

    Mostly Sunny

    • 72
    • 89

    Chance Rain Showers

    • 71
    • 87

    Chance Thunderstorms

    • 70
    • 85

    Chance Thunderstorms

Today 8 Aug Clark

Sunny. Highs in the upper 80s. South Winds 5 to 10 Mph.

Tonight 8 Aug Clark

Mostly clear. Lows in the lower 70s. Southeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Martinsville Temperature Statistics

August Temperature

Mattoon / Charleston, Coles County Memorial Airport (23 miles)

  • Lowest 3 August, 2025

    54 °F

  • Average August

    69.2 °F

  • Highest 6 August, 2025

    86 °F

Climate (2020–Present)

Mattoon / Charleston, Coles County Memorial Airport (23 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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