Plano Weather Forecast

    • 81
    • 101

    Hot

    • 82
    • 101

    Hot

    • 81
    • 102

    Hot

    • 81
    • 101

    Hot

    • 81
    • 101

    Hot

    • 80
    • 100

    Hot

Today 6 Sep Collin

Sunny. A less than 20 percent chance of Showers and Thunderstorms this afternoon. Hot with Highs around 100. Southeast Winds 5 to 10 Mph. Heat index Values up to 105.

Tonight 6 Sep Collin

Clear. A slight chance of Showers in the evening. Lows in the upper 70s. South Winds around 5 Mph. Chance of rain less than 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Plano Temperature Statistics

September Temperature

Dallas / Addison Airport (8.1 miles)

  • Lowest 3 September, 2026

    80.6 °F

  • Average September

    87.1 °F

  • Highest 1 September, 2026

    100.4 °F

Climate (2021–2026)

Dallas / Addison Airport (8.1 miles)

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  • Average Low 2021–2026

    60.3 °F

  • Average 2021–2026

    68.1 °F

  • Average High 2021–2026

    78.8 °F
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