Cottage Grove Weather Forecast

    • 25
    • 38

    Becoming Sunny

    • 38
    • 53

    Mostly Sunny

    • 23
    • 52

    Snow Likely

    • 17
    • 32

    Chance Snow/Sleet

    • 18
    • 32

    Chance Rain

    • 28
    • 42

    Chance Rain

Today 26 Feb Mahoning

Mostly sunny. Near steady temperature in the upper 30s. Northwest Winds around 5 Mph.

Tonight 26 Feb Mahoning

Mostly clear. Lows in the mid 20s. Light and variable Winds, becoming south around 5 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cottage Grove Temperature Statistics

February Temperature

New Castle, New Castle Municipal Airport (12.4 miles)

  • Lowest 8 February, 2026

    -13 °F

  • Average February

    27.3 °F

  • Highest 19 February, 2026

    60.1 °F

Climate (2021–Present)

New Castle, New Castle Municipal Airport (12.4 miles)

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  • Average Low 2021–2026

    41.5 °F

  • Average 2021–2026

    51.2 °F

  • Average High 2021–2026

    61 °F
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