Grenville Weather Forecast

    • 40
    • 47

    Rain Showers

    • 35
    • 43

    Rain Showers

    • 38
    • 46

    Chance Rain Showers

    • 41
    • 61

    Partly Sunny

    • 45
    • 61

    Chance Rain Showers

    • 47
    • 61

    Chance Rain Showers

Today 19 May Day

Windy. Rain Showers and a chance of Thunderstorms. Highs in the upper 40s. East Winds 25 to 35 Mph with Gusts to around 55 Mph.

Tonight 19 May Day

Windy. Showers and a chance of Thunderstorms in the Evening, then Showers after midnight. Lows in the lower 40s. East Winds 20 to 35 Mph. Gusts up to 55 Mph decreasing to 45 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grenville Temperature Statistics

May Temperature

Sisseton, Sisseton Municipal Airport (23.6 miles)

  • Lowest 3 May, 2025

    34.6 °F

  • Average May

    62 °F

  • Highest 11 May, 2025

    93.7 °F

Climate (2020–Present)

Sisseton, Sisseton Municipal Airport (23.6 miles)

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  • Average Low 2020–2025

    36.2 °F

  • Average 2020–2025

    46.8 °F

  • Average High 2020–2025

    57.2 °F
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