Macy Weather Forecast

    • 49
    • 90

    Rain Showers

    • 41
    • 64

    Rain Showers

    • 37
    • 59

    Partly Sunny

    • 41
    • 62

    Mostly Cloudy

    • 44
    • 66

    Slight Chance Thunderstorms

    • 49
    • 71

    Chance Rain Showers

    • 53
    • 78

    Chance Thunderstorms

Today 17 May Thurston

Partly sunny with a chance of Showers and Thunderstorms. Some Thunderstorms may be severe with damaging Winds, large Hail, and Tornadoes. Hot with Highs around 90. Southeast Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 50 percent.

Tonight 17 May Thurston

Mostly cloudy. Showers and Thunderstorms Likely, mainly in the evening. Breezy, cooler with Lows in the upper 40s. Southwest Winds 20 to 25 Mph with Gusts up to 40 Mph, becoming northwest 10 to 15 Mph with Gusts up to 25 Mph after midnight. Chance of rain 70 percent.

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Macy Temperature Statistics

May Temperature

Sioux City, Sioux Gateway Airport (19.9 miles)

  • Lowest 2 May, 2026

    27.6 °F

  • Average May

    57.8 °F

  • Highest 15 May, 2026

    93.9 °F

Climate (2021–Present)

Sioux City, Sioux Gateway Airport (19.9 miles)

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  • Average Low 2021–2026

    39.1 °F

  • Average 2021–2026

    51.2 °F

  • Average High 2021–2026

    63.3 °F
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