Sumner Weather Forecast

    • 72
    • 93

    Smoke

    • 60
    • 89

    Chance Rain Showers

    • 62
    • 85

    Mostly Sunny

    • 66
    • 87

    Rain Showers Likely

    • 57
    • 83

    Chance Rain Showers

    • 55
    • 79

    Mostly Sunny

Today 17 Jul Gratiot

Mostly sunny. Smoke through the day. A 20 percent chance of Showers in the afternoon. Highs in the lower 90s. Light Winds becoming south 5 to 10 Mph with Gusts to around 20 Mph in the afternoon.

Tonight 17 Jul Gratiot

Partly cloudy. Smoke in the Evening, then patchy smoke after midnight. A 20 percent chance of Showers after midnight. Lows in the lower 70s. Southwest Winds 5 to 10 Mph with Gusts to around 25 Mph.

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  • Temperature Real-Time

Sumner Temperature Statistics

July Temperature

Alma, Gratiot Community Airport (6.2 miles)

  • Lowest 7 July, 2026

    53.6 °F

  • Average July

    75.5 °F

  • Highest 14 July, 2026

    95 °F

Climate (2021–2026)

Alma, Gratiot Community Airport (6.2 miles)

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  • Average Low 2021–2026

    39.3 °F

  • Average 2021–2026

    49.1 °F

  • Average High 2021–2026

    58.6 °F
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