Cottage Grove Weather Forecast

    • 20
    • 37

    Snow Showers

    • 35
    • 42

    Rain Showers

    • 24
    • 47

    Rain Showers

    • 24
    • 33

    Mostly Cloudy

    • 36
    • 47

    Slight Chance Rain Showers

    • 25
    • 43

    Chance Rain/Snow

Today 29 Jan Mahoning

Snow Showers likely. Little or no snow accumulation. Highs in the upper 30s. Temperature falling into the lower 30s. West Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of snow 70 percent.

Tonight 29 Jan Mahoning

Mostly cloudy with a chance of snow Showers in the Evening, then partly cloudy after midnight. Little or no snow accumulation. Cooler with Lows around 20. West Winds 10 to 15 Mph. Chance of snow 40 percent.

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Cottage Grove Temperature Statistics

January Temperature

New Castle, New Castle Municipal Airport (12.4 miles)

  • Lowest 22 January, 2025

    -13 °F

  • Average January

    19.9 °F

  • Highest 1 January, 2025

    39 °F

Climate (2020–Present)

New Castle, New Castle Municipal Airport (12.4 miles)

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  • Average Low 2020–2025

    41.9 °F

  • Average 2020–2025

    51.2 °F

  • Average High 2020–2025

    60.9 °F
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