Porter Weather Forecast

    • 33
    • 40

    Rain

    • 21
    • 47

    Rain

    • 23
    • 28

    Mostly Cloudy

    • 25
    • 43

    Mostly Cloudy

    • 25
    • 31

    Mostly Cloudy

    • 31
    • 37

    Mostly Cloudy

Today 17 Dec Porter

Partly cloudy. Highs in the upper 30s. West Winds 5 to 10 Mph, becoming south in the afternoon.

Tonight 17 Dec Porter

Mostly cloudy. A chance of rain Showers and drizzle after midnight. Breezy with Lows in the lower 30s. Temperature rising to around 40 after midnight. South Winds 10 to 15 Mph, increasing to 15 to 20 Mph after midnight. Gusts up to 30 Mph. Chance of precipitation 50 percent.

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Porter Temperature Statistics

December Temperature

Valparaiso Porter County Municipal Airport (11.8 miles)

  • Lowest 5 December, 2025

    -2 °F
  • Average December

    21.7 °F
  • Highest 10 December, 2025

    39 °F

Climate (2020–Present)

Valparaiso Porter County Municipal Airport (11.8 miles)

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  • Average Low 2020–2025

    42.5 °F
  • Average 2020–2025

    51.9 °F
  • Average High 2020–2025

    61.4 °F
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