Denison Weather Forecast

    • 54
    • 86

    Severe Tstms

    • 57
    • 65

    Rain Showers

    • 49
    • 60

    Rain Showers

    • 47
    • 63

    Partly Sunny

    • 56
    • 70

    Mostly Sunny

    • 61
    • 78

    Partly Sunny

Today 18 Apr Grayson

Patchy fog this morning. Mostly cloudy this Morning, then partly sunny with a 50 percent chance of Showers and Thunderstorms this afternoon. Highs in the mid 80s. South Winds 10 to 15 Mph, becoming west this afternoon.

Tonight 18 Apr Grayson

Mostly cloudy with a 20 percent chance of Showers and Thunderstorms in the Evening, then partly cloudy after midnight. Much cooler. Less humid with Lows in the mid 50s. North Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Denison Temperature Statistics

April Temperature

Sherman/Denison, Grayson County Airport (7.5 miles)

  • Lowest 4 April, 2024

    40.3 °F

  • Average April

    63.7 °F

  • Highest 16 April, 2024

    84.2 °F

Climate (2019–Present)

Sherman/Denison, Grayson County Airport (7.5 miles)

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  • Average Low 2019–2024

    55.2 °F

  • Average 2019–2024

    63.8 °F

  • Average High 2019–2024

    75.9 °F
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