Merrillville Weather Forecast

    • 42
    • 57

    Chance Rain Showers

    • 39
    • 55

    Mostly Cloudy

    • 45
    • 59

    Partly Sunny

    • 47
    • 64

    Chance Rain Showers

    • 50
    • 70

    Partly Sunny

    • 44
    • 63

    Chance Rain Showers

Today 5 May Lake

Cloudy. Scattered Showers early in the Morning, then a slight chance of Showers in the late morning and early afternoon. A chance of Showers late. Highs in the upper 50s. Northwest Winds around 5 Mph. Chance of precipitation 50 percent.

Tonight 5 May Lake

Mostly cloudy. A chance of Showers early in the Evening, then a slight chance of Showers late in the evening. Lows in the lower 40s. East Winds around 5 Mph, becoming northwest after midnight. Chance of precipitation 50 percent.

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Merrillville Temperature Statistics

May Temperature

Gary Regional Airport (9.3 miles)

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Climate (2021–Present)

Gary Regional Airport (9.3 miles)

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  • Average Low 2021–2026

    43.8 °F

  • Average 2021–2026

    51.6 °F

  • Average High 2021–2026

    61.2 °F
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