Sinsinawa Weather Forecast

    • 68
    • 83

    Chance Thunderstorms

    • 68
    • 83

    Chance Thunderstorms

    • 68
    • 84

    Chance Thunderstorms

    • 65
    • 83

    Slight Chance Thunderstorms

    • 61
    • 76

    Chance Rain Showers

    • 61
    • 74

    Chance Rain Showers

    • 63
    • 75

    Chance Rain Showers

Today 9 Aug Grant

Partly sunny with scattered Showers and Thunderstorms. Highs in the lower 80s. South Winds 5 to 10 Mph. Chance of rain 40 percent.

Tonight 9 Aug Grant

Partly cloudy this Evening, then becoming mostly cloudy. Patchy fog after midnight. Lows in the mid 60s. Light Winds.

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Sinsinawa Temperature Statistics

August Temperature

Dubuque Regional Airport (11.8 miles)

  • Lowest 3 August, 2026

    59 °F

  • Average August

    70.1 °F

  • Highest 2 August, 2026

    81 °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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