Collinsville Weather Forecast

    • 62
    • 72

    Rain Showers Likely

    • 61
    • 77

    Chance Rain Showers

    • 64
    • 86

    Chance Thunderstorms

    • 67
    • 88

    Partly Sunny

    • 68
    • 90

    Chance Thunderstorms

    • 64
    • 88

    Chance Thunderstorms

Today 24 Jul Henry

Mostly cloudy. A chance of Showers this Morning, then a slight chance of Showers and Thunderstorms this afternoon. Highs in the lower 70s. Northeast Winds around 5 Mph. Chance of rain 50 percent.

Tonight 24 Jul Henry

A slight chance of Thunderstorms in the evening. Showers with Lows in the lower 60s. Northeast Winds around 5 Mph. Chance of rain 90 percent.

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Collinsville Temperature Statistics

July Temperature

Martinsville (7.5 miles)

  • Lowest 15 July, 2026

    59.4 °F

  • Average July

    77.8 °F

  • Highest 3 July, 2026

    99.1 °F

Climate (2021–2026)

Martinsville (7.5 miles)

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  • Average Low 2021–2026

    45.4 °F

  • Average 2021–2026

    57.3 °F

  • Average High 2021–2026

    69.3 °F
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