Westport Weather Forecast

    • 50
    • 74

    Becoming Sunny

    • 61
    • 74

    Rain Showers Likely

    • 63
    • 71

    Rain Showers

    • 48
    • 69

    Chance Rain Showers

    • 44
    • 64

    Mostly Sunny

    • 47
    • 65

    Partly Sunny

Today 28 Sep Dane

Sunny. Highs in the mid 70s. Calm Winds becoming east up to 5 Mph in the afternoon.

Tonight 28 Sep Dane

Clear until early morning then becoming partly cloudy. Lows around 50. Southeast Winds up to 5 Mph.

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Westport Temperature Statistics

September Temperature

Madison, Dane County Regional-Truax Field (3.7 miles)

  • Lowest 14 September, 2026

    41.6 °F

  • Average September

    65.8 °F

  • Highest 2 September, 2026

    88.6 °F

Climate (2021–2026)

Madison, Dane County Regional-Truax Field (3.7 miles)

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  • Average Low 2021–2026

    39.9 °F

  • Average 2021–2026

    49.7 °F

  • Average High 2021–2026

    59.1 °F
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