Roslyn Weather Forecast

    • 72
    • 94

    Decreasing Clouds

    • 69
    • 89

    Partly Sunny

    • 69
    • 88

    Mostly Sunny

    • 70
    • 90

    Chance Rain Showers

    • 66
    • 83

    Rain Showers Likely

    • 65
    • 83

    Mostly Sunny

Today 26 Jul Day

Mostly cloudy Early, then becoming partly sunny. A slight chance of Showers early. Hot with Highs in the mid 90s. East Winds around 5 Mph, becoming southwest. Chance of rain 20 percent. Heat index Values up to 102.

Tonight 26 Jul Day

Mostly clear. Humid with Lows in the lower 70s. West Winds 5 to 10 Mph. Heat index Values up to 102 early in the evening.

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Roslyn Temperature Statistics

July Temperature

Sisseton, Sisseton Municipal Airport (26.7 miles)

  • Lowest 22 July, 2026

    52 °F

  • Average July

    74.6 °F

  • Highest 14 July, 2026

    91.9 °F

Climate (2021–2026)

Sisseton, Sisseton Municipal Airport (26.7 miles)

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  • Average Low 2021–2026

    35.9 °F

  • Average 2021–2026

    46.5 °F

  • Average High 2021–2026

    57 °F
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