Agar Weather Forecast

    • 68
    • 91

    Chance Thunderstorms

    • 68
    • 96

    Chance Rain Showers

    • 66
    • 92

    Chance Thunderstorms

    • 66
    • 90

    Chance Thunderstorms

    • 57
    • 84

    Mostly Sunny

    • 54
    • 80

    Partly Sunny

    • 57
    • 80

    Partly Sunny

Today 4 Sep Sully

Partly sunny with a 20 percent chance of Thunderstorms. Hot with Highs in the lower 90s. East Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 4 Sep Sully

Partly cloudy with a slight chance of Thunderstorms this Evening, then mostly clear after midnight. Lows in the upper 60s. East Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 20 percent.

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Agar Temperature Statistics

September Temperature

Pierre, Pierre Regional Airport (32.9 miles)

  • Lowest 1 September, 2026

    56.6 °F

  • Average September

    71.5 °F

  • Highest 2 September, 2026

    91 °F

Climate (2021–2026)

Pierre, Pierre Regional Airport (32.9 miles)

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  • Average Low 2021–2026

    36.8 °F

  • Average 2021–2026

    48.8 °F

  • Average High 2021–2026

    61.4 °F
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