Union Lake Weather Forecast

    • 41
    • 54

    Decreasing Clouds

    • 41
    • 62

    Partly Sunny

    • 54
    • 68

    Mostly Cloudy

    • 54
    • 81

    Slight Chance Rain Showers

    • 61
    • 77

    Chance Thunderstorms

    • 63
    • 86

    Chance Rain Showers

Today 13 May Oakland

Cloudy. Near steady temperature in the lower 50s. West Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 13 May Oakland

Mostly cloudy. Lows in the lower 40s. Northwest Winds 10 to 15 Mph. Gusts up to 30 Mph in the evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Union Lake Temperature Statistics

May Temperature

Pontiac, Oakland County International Airport (3.7 miles)

  • Lowest 2 May, 2026

    35.6 °F

  • Average May

    52 °F

  • Highest 4 May, 2026

    74.7 °F

Climate (2021–Present)

Pontiac, Oakland County International Airport (3.7 miles)

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  • Average Low 2021–2026

    41.8 °F

  • Average 2021–2026

    50.6 °F

  • Average High 2021–2026

    59.1 °F
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