Oakbrook Airport Weather Forecast

    • 68
    • 84

    Mostly Cloudy

    • 72
    • 90

    Chance Thunderstorms

    • 67
    • 91

    Chance Thunderstorms

    • 63
    • 86

    Mostly Sunny

    • 64
    • 88

    Mostly Sunny

    • 65
    • 88

    Chance Rain Showers

Today 25 Jul Jefferson

Partly sunny. Highs in the mid 80s. Southwest Winds 5 to 10 Mph.

Tonight 25 Jul Jefferson

Partly cloudy until early morning then becoming mostly cloudy. Lows in the upper 60s. Southwest Winds up to 5 Mph.

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Oakbrook Airport Temperature Statistics

July Temperature

Watertown (19.3 miles)

  • Lowest 22 July, 2026

    51.1 °F

  • Average July

    75.2 °F

  • Highest 14 July, 2026

    95.4 °F

Climate (2021–2026)

Watertown (19.3 miles)

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  • Average Low 2021–2026

    35.2 °F

  • Average 2021–2026

    44.9 °F

  • Average High 2021–2026

    54 °F
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