Sinsinawa Weather Forecast

    • 74
    • 91

    Chance Thunderstorms

    • 70
    • 93

    Slight Chance Thunderstorms

    • 64
    • 85

    Mostly Sunny

    • 65
    • 86

    Mostly Sunny

    • 68
    • 84

    Chance Rain Showers

    • 65
    • 79

    Chance Rain Showers

    • 64
    • 81

    Slight Chance Thunderstorms

Today 26 Jul Grant

Partly sunny. Hot with Highs in the lower 90s. Southwest Winds 5 to 10 Mph. Heat index Values up to 105.

Tonight 26 Jul Grant

Mostly cloudy this Evening, then partly cloudy with a slight chance of Showers and Thunderstorms after midnight. Lows in the mid 70s. South Winds 5 to 10 Mph. Chance of rain 20 percent. Heat index Values up to 110 early this evening.

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Sinsinawa Temperature Statistics

July Temperature

Dubuque Regional Airport (11.8 miles)

  • Lowest 23 July, 2026

    52 °F

  • Average July

    75.2 °F

  • Highest 14 July, 2026

    91 °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

    59.5 °F
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