Sinsinawa Weather Forecast

    • 70
    • 93

    Mostly Sunny

    • 72
    • 93

    Mostly Sunny

    • 72
    • 92

    Mostly Sunny

    • 72
    • 90

    Chance Thunderstorms

    • 69
    • 90

    Slight Chance Thunderstorms

    • 67
    • 87

    Mostly Sunny

Today 14 Jul Grant

Patchy fog this morning. Mostly sunny. Hot with Highs in the lower 90s. West Winds around 5 Mph. Heat index Values up to 100 this afternoon.

Tonight 14 Jul Grant

Mostly clear. Humid with Lows around 70. Light Winds. Heat index Values up to 100 early in the evening.

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Sinsinawa Temperature Statistics

July Temperature

Dubuque Regional Airport (11.8 miles)

  • Lowest 12 July, 2026

    62.1 °F

  • Average July

    75.7 °F

  • Highest 1 July, 2026

    90 °F

Climate (2021–2026)

Dubuque Regional Airport (11.8 miles)

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  • Average Low 2021–2026

    40.6 °F

  • Average 2021–2026

    50.1 °F

  • Average High 2021–2026

    59.4 °F
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