Milwaukee County Zoo Weather Forecast

    • 66
    • 82

    Rain Showers Likely

    • 46
    • 80

    Rain Showers Likely

    • 40
    • 59

    Partly Sunny

    • 45
    • 59

    Mostly Cloudy

    • 49
    • 66

    Slight Chance Rain Showers

    • 53
    • 72

    Slight Chance Rain Showers

Today 18 May Milwaukee

Warmer. Mostly cloudy. Showers likely and chance of Thunderstorms in the Morning, then chance of Showers and Thunderstorms in the late morning and afternoon. Highs around 80. Southwest Winds 10 to 15 Mph. Chance of precipitation 60 percent.

Tonight 18 May Milwaukee

Partly cloudy. Rain Showers likely and chance of Thunderstorms early in the morning. Lows around 50. South Winds 5 to 15 Mph. Chance of precipitation 60 percent.

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Milwaukee County Zoo Temperature Statistics

May Temperature

Milwaukee-Timmerman (5 miles)

  • Lowest 5 May, 2026

    8.6 °F

  • Average May

    45.7 °F

  • Highest 4 May, 2026

    77 °F

Climate (2021–Present)

Milwaukee-Timmerman (5 miles)

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  • Average Low 2021–2026

    40 °F

  • Average 2021–2026

    47.1 °F

  • Average High 2021–2026

    57 °F
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