Lake Vermillion Recreation Area Weather Forecast

    • 67
    • 88

    Severe Tstms

    • 65
    • 84

    Partly Sunny

    • 67
    • 84

    Partly Sunny

    • 70
    • 90

    Mostly Sunny

    • 71
    • 92

    Slight Chance Thunderstorms

    • 67
    • 91

    Slight Chance Thunderstorms

Today 23 Jul McCook

Numerous Showers and scattered Thunderstorms this Morning, then Showers and Thunderstorms likely this afternoon. Some Thunderstorms may be severe this afternoon. Highs in the upper 80s. South Winds around 10 Mph. Chance of rain 60 percent. Heat index Values in the upper 90s.

Tonight 23 Jul McCook

Mostly cloudy. Showers and Thunderstorms Likely, mainly in the evening. Humid with Lows in the mid 60s. North Winds 5 to 10 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

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Lake Vermillion Recreation Area Temperature Statistics

July Temperature

Sioux Falls, Foss Field (21.1 miles)

  • Lowest 17 July, 2025

    53.7 °F

  • Average July

    74.8 °F

  • Highest 3 July, 2025

    94.6 °F

Climate (2020–Present)

Sioux Falls, Foss Field (21.1 miles)

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  • Average Low 2020–2025

    38.8 °F

  • Average 2020–2025

    49.8 °F

  • Average High 2020–2025

    60.6 °F
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