Stewartsville Weather Forecast

    • 66
    • 83

    Mostly Sunny

    • 70
    • 88

    Partly Sunny

    • 73
    • 90

    Mostly Sunny

    • 73
    • 92

    Slight Chance Thunderstorms

    • 69
    • 90

    Chance Thunderstorms

    • 68
    • 86

    Chance Thunderstorms

Today 5 Aug De Kalb

Sunny. Highs in the lower 80s. Southeast Winds 5 to 10 Mph.

Tonight 5 Aug De Kalb

Partly cloudy in the Evening, then becoming mostly clear. Lows in the mid 60s. Southeast Winds 5 to 10 Mph.

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Stewartsville Temperature Statistics

August Temperature

St. Joseph, Rosecrans Memorial Airport (21.7 miles)

  • Lowest 2 August, 2025

    57.9 °F

  • Average August

    68.3 °F

  • Highest 2 August, 2025

    78.1 °F

Climate (2020–Present)

St. Joseph, Rosecrans Memorial Airport (21.7 miles)

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  • Average Low 2020–2025

    43.6 °F

  • Average 2020–2025

    55.1 °F

  • Average High 2020–2025

    66.6 °F
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