Sinsinawa Weather Forecast

    • 58
    • 74

    Rain Showers

    • 52
    • 78

    Partly Sunny

    • 52
    • 82

    Mostly Sunny

    • 58
    • 84

    Mostly Sunny

    • 64
    • 87

    Chance Rain Showers

    • 64
    • 86

    Rain Showers Likely

    • 65
    • 87

    Chance Thunderstorms

Today 31 May Grant

Mostly cloudy with a 20 percent chance of Showers. Highs in the upper 70s. Southeast Winds 5 to 10 Mph.

Tonight 31 May Grant

Mostly cloudy. Scattered Showers this Evening, then isolated Showers after midnight. Lows in the upper 50s. East Winds around 5 Mph. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sinsinawa Temperature Statistics

May Temperature

Dubuque Regional Airport (11.8 miles)

  • Lowest 2 May, 2026

    32 °F

  • Average May

    60.2 °F

  • Highest 27 May, 2026

    89.1 °F

Climate (2021–Present)

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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