Collinsville Weather Forecast

    • 70
    • 83

    Thunderstorms Likely

    • 75
    • 87

    Rain Showers Likely

    • 76
    • 90

    Mostly Sunny

    • 75
    • 91

    Mostly Sunny

    • 76
    • 91

    Mostly Sunny

    • 75
    • 93

    Slight Chance Thunderstorms

    • 75
    • 93

    Slight Chance Thunderstorms

Today 6 Jun Grayson

Mostly sunny with a 50 percent chance of Showers and Thunderstorms. Heavy rainfall possible. Highs in the lower 80s. Southeast Winds 5 to 10 Mph.

Tonight 6 Jun Grayson

Mostly cloudy with a chance of Thunderstorms. Showers likely. Heavy rainfall possible. Lows in the lower 70s. Southeast Winds 5 to 10 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Collinsville Temperature Statistics

June Temperature

Gainesville, Gainesville Municipal Airport (17.4 miles)

  • Lowest 3 June, 2026

    66.4 °F

  • Average June

    79.5 °F

  • Highest 1 June, 2026

    93.2 °F

Climate (2021–Present)

Gainesville, Gainesville Municipal Airport (17.4 miles)

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  • Average Low 2021–2026

    53.3 °F

  • Average 2021–2026

    64.4 °F

  • Average High 2021–2026

    76.3 °F
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