Flat Lake Weather Forecast

    • 47
    • 80

    Mostly Cloudy

    • 41
    • 60

    Partly Sunny

    • 46
    • 60

    Partly Sunny

    • 43
    • 68

    Mostly Sunny

    • 44
    • 63

    Partly Sunny

    • 52
    • 66

    Breezy

    • 50
    • 74

    Partly Sunny

Today 30 Sep Campbell

Mostly clear. Lows around 50. Highs in the upper 60s.

Tonight 30 Sep Campbell

Partly cloudy this Evening, then becoming mostly cloudy. Lows in the upper 40s. North Winds 5 to 10 Mph with Gusts up to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Flat Lake Temperature Statistics

September Temperature

Mobridge, Mobridge Municipal Airport (31.1 miles)

  • Lowest 17 September, 2026

    46.7 °F

  • Average September

    65.7 °F

  • Highest 5 September, 2026

    95.6 °F

Climate (2021–2026)

Mobridge, Mobridge Municipal Airport (31.1 miles)

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  • Average Low 2021–2026

    35.9 °F

  • Average 2021–2026

    47.7 °F

  • Average High 2021–2026

    59.7 °F
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