Allen Weather Forecast

    • 78
    • 96

    Thunderstorms Likely

    • 75
    • 90

    Thunderstorms Likely

    • 77
    • 91

    Chance Thunderstorms

    • 76
    • 97

    Chance Thunderstorms

    • 74
    • 91

    Rain Showers Likely

    • 75
    • 88

    Chance Thunderstorms

Today 18 Jun Collin

Mostly sunny. Highs in the mid 90s. Southeast Winds 5 to 10 Mph. Heat index Values up to 107.

Tonight 18 Jun Collin

Partly cloudy in the Evening, then mostly cloudy with Showers and Thunderstorms likely after midnight. Humid with Lows in the upper 70s. East Winds 5 to 10 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Allen Temperature Statistics

June Temperature

McKinney - McKinney National Airport (6.8 miles)

  • Lowest 14 June, 2026

    68.6 °F

  • Average June

    81.6 °F

  • Highest 8 June, 2026

    93.7 °F

Climate (2021–2026)

McKinney - McKinney National Airport (6.8 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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