Sinclair Weather Forecast

    • 69
    • 94

    Areas Smoke

    • 65
    • 85

    Partly Sunny

    • 66
    • 86

    Mostly Sunny

    • 67
    • 85

    Chance Thunderstorms

    • 64
    • 79

    Chance Rain Showers

    • 63
    • 82

    Mostly Sunny

Today 27 Jul Grundy

Sunny, hot with Highs in the mid 90s. West Winds 5 to 10 Mph. Heat index Values up to 112.

Tonight 27 Jul Grundy

Partly cloudy. Patchy smoke. Humid with Lows around 70. Northwest Winds 5 to 10 Mph, becoming north after midnight. Heat index Values up to 107 early in the evening.

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Sinclair Temperature Statistics

July Temperature

Waterloo, Waterloo Municipal Airport (16.8 miles)

  • Lowest 22 July, 2026

    56.6 °F

  • Average July

    76 °F

  • Highest 16 July, 2026

    92.6 °F

Climate (2021–2026)

Waterloo, Waterloo Municipal Airport (16.8 miles)

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  • Average Low 2021–2026

    40.1 °F

  • Average 2021–2026

    51.1 °F

  • Average High 2021–2026

    61.9 °F
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