Cottage Grove Weather Forecast

    • 57
    • 83

    Mostly Sunny

    • 59
    • 85

    Mostly Sunny

    • 59
    • 84

    Mostly Sunny

    • 59
    • 84

    Partly Sunny

    • 59
    • 78

    Chance Rain Showers

    • 59
    • 75

    Chance Rain Showers

    • 58
    • 74

    Chance Rain Showers

Today 15 Sep Dane

Sunny. Southeast Winds 5 to 10 Mph.

Tonight 15 Sep Dane

Mostly clear. Lows in the upper 50s. East Winds up to 10 Mph.

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Cottage Grove Temperature Statistics

September Temperature

Madison, Dane County Regional-Truax Field (8.1 miles)

  • Lowest 8 September, 2025

    42.1 °F

  • Average September

    61.3 °F

  • Highest 12 September, 2025

    82 °F

Climate (2020–Present)

Madison, Dane County Regional-Truax Field (8.1 miles)

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  • Average Low 2020–2025

    39.9 °F

  • Average 2020–2025

    49.5 °F

  • Average High 2020–2025

    58.7 °F
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