Hammer Weather Forecast

    • 67
    • 85

    Chance Thunderstorms

    • 65
    • 81

    Rain Showers Likely

    • 69
    • 82

    Rain Showers Likely

    • 58
    • 81

    Mostly Sunny

    • 51
    • 76

    Mostly Sunny

    • 57
    • 79

    Mostly Sunny

    • 54
    • 80

    Mostly Sunny

Today 5 Sep Roberts

Partly sunny. Highs in the lower 80s. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 5 Sep Roberts

Partly cloudy this Evening, then mostly cloudy with a chance of Thunderstorms after midnight. Lows in the upper 60s. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

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  • Temperature Real-Time

Hammer Temperature Statistics

September Temperature

Sisseton, Sisseton Municipal Airport (12.4 miles)

  • Lowest 1 September, 2026

    53.1 °F

  • Average September

    71.5 °F

  • Highest 3 September, 2026

    91.9 °F

Climate (2021–2026)

Sisseton, Sisseton Municipal Airport (12.4 miles)

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  • Average Low 2021–2026

    35.9 °F

  • Average 2021–2026

    46.4 °F

  • Average High 2021–2026

    57 °F
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