Van Alstyne Weather Forecast

    • 70
    • 83

    Rain Showers Likely

    • 70
    • 82

    Rain Showers

    • 74
    • 84

    Rain Showers

    • 76
    • 90

    Mostly Sunny

    • 76
    • 90

    Mostly Sunny

    • 76
    • 91

    Mostly Sunny

Today 5 Jun Grayson

Mostly cloudy with a 50 percent chance of Showers and Thunderstorms. Highs in the mid 80s. South Winds 5 to 10 Mph.

Tonight 5 Jun Grayson

Cloudy with a chance of Thunderstorms. A chance of Showers in the Evening, then Showers likely after midnight. Humid with Lows around 70. Southeast Winds 5 to 10 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Van Alstyne Temperature Statistics

June Temperature

McKinney - McKinney National Airport (16.8 miles)

  • Lowest 3 June, 2026

    71.6 °F

  • Average June

    82.9 °F

  • Highest 2 June, 2026

    91.9 °F

Climate (2021–Present)

McKinney - McKinney National Airport (16.8 miles)

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  • Average Low 2021–2026

    56.5 °F

  • Average 2021–2026

    67.3 °F

  • Average High 2021–2026

    78.3 °F
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