Martinsville Weather Forecast

    • 58
    • 82

    Increasing Clouds

    • 67
    • 86

    Mostly Cloudy

    • 63
    • 89

    Mostly Cloudy

    • 57
    • 72

    Chance Thunderstorms

    • 56
    • 71

    Chance Rain Showers

    • 52
    • 71

    Slight Chance Rain Showers

Today 29 Sep Clark

Patchy fog in the morning. Sunny. Highs in the lower 80s. Southeast Winds around 5 Mph.

Tonight 29 Sep Clark

Mostly clear in the Evening, then becoming mostly cloudy. Lows in the upper 50s. Southeast Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Martinsville Temperature Statistics

September Temperature

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

  • Lowest 26 September, 2026

    54 °F

  • Average September

    76.3 °F

  • Highest 2 September, 2026

    97.6 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    45.9 °F

  • Average 2021–2026

    55.5 °F

  • Average High 2021–2026

    65.1 °F
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