Wheaton Weather Forecast

    • 66
    • 87

    Chance Thunderstorms

    • 63
    • 77

    Chance Thunderstorms

    • 64
    • 81

    Chance Thunderstorms

    • 68
    • 84

    Mostly Sunny

    • 72
    • 88

    Mostly Sunny

    • 74
    • 92

    Mostly Sunny

Today 4 Aug Pottawatomie

Mostly cloudy with a slight chance of Showers this Morning, then partly sunny this afternoon. Highs in the upper 80s. East Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 4 Aug Pottawatomie

Partly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then mostly cloudy with a chance of Showers and Thunderstorms after midnight. Humid with Lows in the upper 60s. Northeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 30 percent.

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Wheaton Temperature Statistics

August Temperature

Marysville Municipal Airport (29.2 miles)

  • Lowest 1 August, 2026

    60.8 °F

  • Average August

    71.3 °F

  • Highest 1 August, 2026

    82.4 °F

Climate (2021–2026)

Marysville Municipal Airport (29.2 miles)

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  • Average Low 2021–2026

    43.8 °F

  • Average 2021–2026

    55.1 °F

  • Average High 2021–2026

    66.6 °F
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