Sinsinawa Weather Forecast

    • 57
    • 75

    Mostly Cloudy

    • 63
    • 70

    Chance Thunderstorms

    • 61
    • 76

    Rain Showers Likely

    • 63
    • 76

    Rain Showers Likely

    • 59
    • 78

    Rain Showers Likely

    • 54
    • 70

    Chance Rain Showers

Today 15 Sep Grant

Mostly cloudy. Near steady temperature in the lower 70s. West Winds 5 to 10 Mph.

Tonight 15 Sep Grant

Mostly cloudy. Lows in the mid 50s. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sinsinawa Temperature Statistics

September Temperature

Dubuque Regional Airport (11.8 miles)

  • Lowest 13 September, 2026

    50 °F

  • Average September

    73.9 °F

  • Highest 1 September, 2026

    91.7 °F

Climate (2021–2026)

Dubuque Regional Airport (11.8 miles)

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  • Average Low 2021–2026

    40.7 °F

  • Average 2021–2026

    50.1 °F

  • Average High 2021–2026

    59.5 °F
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