Cromwell Weather Forecast

    • 37
    • 52

    Rain

    • 15
    • 40

    Breezy

    • 31
    • 39

    Partly Sunny

    • 22
    • 43

    Partly Sunny

    • 29
    • 41

    Mostly Cloudy

    • 34
    • 48

    Mostly Cloudy

    • 29
    • 49

    Mostly Cloudy

Today 17 Dec Union

Mostly sunny. Highs in the upper 40s. South Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 17 Dec Union

Rain. Lows in the upper 30s. South Winds 15 to 20 Mph, becoming west. Chance of rain near 100 percent.

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Cromwell Temperature Statistics

December Temperature

Creston Municipal Airport (5 miles)

  • Lowest 4 December, 2025

    -4 °F

  • Average December

    21.3 °F

  • Highest 9 December, 2025

    44.6 °F

Climate (2020–Present)

Creston Municipal Airport (5 miles)

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  • Average Low 2020–2025

    41.2 °F

  • Average 2020–2025

    51.2 °F

  • Average High 2020–2025

    61.6 °F
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