Agar Weather Forecast

    • 25
    • 45

    Increasing Clouds

    • 28
    • 47

    Mostly Cloudy

    • 22
    • 39

    Mostly Cloudy

    • 16
    • 37

    Partly Sunny

    • 15
    • 30

    Partly Sunny

    • 26
    • 45

    Partly Sunny

Today 6 Jan Sully

Mostly sunny. Highs in the mid 40s. West Winds 5 to 10 Mph.

Tonight 6 Jan Sully

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the upper 20s. Southwest Winds 5 to 10 Mph.

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Agar Temperature Statistics

January Temperature

Pierre, Pierre Regional Airport (32.9 miles)

  • Lowest 1 January, 2026

    16 °F

  • Average January

    24.7 °F

  • Highest 4 January, 2026

    39 °F

Climate (2021–Present)

Pierre, Pierre Regional Airport (32.9 miles)

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  • Average Low 2021–2026

    37 °F

  • Average 2021–2026

    48.8 °F

  • Average High 2021–2026

    61.2 °F
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