Gregg Lake Weather Forecast

    • 67
    • 83

    Chance Thunderstorms

    • 58
    • 82

    Slight Chance Thunderstorms

    • 64
    • 83

    Chance Thunderstorms

    • 64
    • 84

    Rain Showers Likely

    • 60
    • 81

    Chance Rain Showers

    • 58
    • 80

    Chance Rain Showers

Today 7 Aug Eaton

Patchy fog in the morning. Partly sunny in the Morning, then mostly sunny with a 50 percent chance of Showers and Thunderstorms in the afternoon. Highs in the lower 80s. Southwest Winds around 10 Mph. Gusts up to 20 Mph in the afternoon.

Tonight 7 Aug Eaton

Partly cloudy. A 40 percent chance of Showers and Thunderstorms in the evening. Lows in the upper 60s. Southwest Winds around 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Gregg Lake Temperature Statistics

August Temperature

Ionia County Airport (13.7 miles)

  • Lowest 4 August, 2026

    57.2 °F

  • Average August

    70.3 °F

  • Highest 4 August, 2026

    86 °F

Climate (2021–2026)

Ionia County Airport (13.7 miles)

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  • Average Low 2021–2026

    40.9 °F

  • Average 2021–2026

    50 °F

  • Average High 2021–2026

    59 °F
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