Collinsville Weather Forecast

    • 65
    • 74

    Decreasing Clouds

    • 67
    • 78

    Slight Chance Thunderstorms

    • 62
    • 85

    Slight Chance Thunderstorms

    • 64
    • 84

    Chance Thunderstorms

    • 67
    • 85

    Slight Chance Thunderstorms

    • 57
    • 85

    Mostly Sunny

Today 22 Apr Grayson

Mostly cloudy. A 20 percent chance of Showers this morning. Patchy fog this morning. Not as cool with Highs in the mid 70s. Southeast Winds 5 to 10 Mph.

Tonight 22 Apr Grayson

Mostly cloudy. Lows in the mid 60s. South Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Collinsville Temperature Statistics

April Temperature

Gainesville, Gainesville Municipal Airport (17.4 miles)

  • Lowest 19 April, 2026

    36.9 °F

  • Average April

    66.5 °F

  • Highest 13 April, 2026

    84.4 °F

Climate (2021–Present)

Gainesville, Gainesville Municipal Airport (17.4 miles)

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  • Average Low 2021–2026

    53.2 °F

  • Average 2021–2026

    64.2 °F

  • Average High 2021–2026

    76.1 °F
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