Chesterton Weather Forecast

    • 73
    • 88

    Chance Thunderstorms

    • 70
    • 85

    Chance Thunderstorms

    • 66
    • 83

    Partly Sunny

    • 70
    • 87

    Mostly Sunny

    • 72
    • 89

    Chance Thunderstorms

    • 70
    • 87

    Rain Showers Likely

    • 67
    • 83

    Chance Thunderstorms

Today 11 Jul Porter

Decreasing Clouds. A slight chance of Showers and Thunderstorms late in the afternoon. Highs in the upper 80s. Southwest Winds 10 to 15 Mph. Chance of precipitation 20 percent.

Tonight 11 Jul Porter

Mostly cloudy. Showers and Thunderstorms likely late in the Evening, then a chance of Showers and Thunderstorms after midnight. Lows in the lower 70s. South Winds 5 to 10 Mph. Chance of precipitation 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Chesterton Temperature Statistics

July Temperature

Valparaiso Porter County Municipal Airport (11.2 miles)

  • Lowest 8 July, 2025

    62.7 °F

  • Average July

    77.9 °F

  • Highest 5 July, 2025

    93.7 °F

Climate (2020–Present)

Valparaiso Porter County Municipal Airport (11.2 miles)

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  • Average Low 2020–2025

    42.4 °F

  • Average 2020–2025

    51.8 °F

  • Average High 2020–2025

    61.2 °F
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