Roslyn Weather Forecast

    • 64
    • 80

    Increasing Clouds

    • 51
    • 83

    Slight Chance Thunderstorms

    • 48
    • 67

    Mostly Cloudy

    • 50
    • 59

    Rain Showers

    • 46
    • 65

    Slight Chance Rain Showers

    • 50
    • 65

    Partly Sunny

Today 10 Sep Day

Mostly sunny. Highs in the lower 80s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph, increasing to around 15 Mph with Gusts up to 30 Mph in the afternoon.

Tonight 10 Sep Day

Clear. Near steady temperature in the mid 50s. South Winds 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Roslyn Temperature Statistics

September Temperature

Sisseton, Sisseton Municipal Airport (26.7 miles)

  • Lowest 1 September, 2026

    53.1 °F

  • Average September

    71.9 °F

  • Highest 3 September, 2026

    91.9 °F

Climate (2021–2026)

Sisseton, Sisseton Municipal Airport (26.7 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    35.9 °F

  • Average 2021–2026

    46.5 °F

  • Average High 2021–2026

    57 °F
Get WillyWeather+ to remove ads