Erin Aero Airport Weather Forecast

    • 41
    • 52

    Increasing Clouds

    • 41
    • 72

    Partly Sunny

    • 51
    • 68

    Mostly Sunny

    • 58
    • 77

    Mostly Cloudy

    • 44
    • 67

    Chance Rain Showers

    • 41
    • 61

    Slight Chance Rain Showers

Today 20 Apr Washington

Sunny. Widespread frost in the morning. Highs around 50. South Winds up to 5 Mph increasing to 5 to 15 Mph in the afternoon.

Tonight 20 Apr Washington

Not as cool. Partly cloudy then becoming mostly cloudy late in the evening then becoming partly cloudy. Lows around 40. South Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Erin Aero Airport Temperature Statistics

April Temperature

Waukesha County Airport (14.9 miles)

  • Lowest 7 April, 2026

    23 °F

  • Average April

    46.5 °F

  • Highest 17 April, 2026

    77 °F

Climate (2021–Present)

Waukesha County Airport (14.9 miles)

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  • Average Low 2021–2026

    38.5 °F

  • Average 2021–2026

    46 °F

  • Average High 2021–2026

    56.6 °F
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