Agate Dam Reservoir Weather Forecast

    • 54
    • 78

    Breezy

    • 60
    • 89

    Partly Sunny

    • 52
    • 79

    Windy

    • 50
    • 78

    Mostly Sunny

    • 56
    • 85

    Partly Sunny

    • 55
    • 83

    Rain Showers Likely

Today 15 Jun North Sioux

Sunny, Breezy, warmer with Highs in the upper 70s. West Winds 10 to 15 Mph with Gusts up to 25 Mph, becoming northwest 15 to 25 Mph with Gusts up to 40 Mph this afternoon.

Tonight 15 Jun North Sioux

Partly cloudy in the Evening, then becoming mostly cloudy. Breezy and not as cool with Lows in the lower 50s. North Winds 20 to 25 Mph with Gusts up to 40 Mph, becoming west 5 to 10 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Agate Dam Reservoir Temperature Statistics

June Temperature

Chadron, Chadron Municipal Airport (22.4 miles)

  • Lowest 13 June, 2026

    44.1 °F

  • Average June

    70.1 °F

  • Highest 6 June, 2026

    99 °F

Climate (2021–Present)

Chadron, Chadron Municipal Airport (22.4 miles)

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  • Average Low 2021–2026

    35.9 °F

  • Average 2021–2026

    50.2 °F

  • Average High 2021–2026

    64.4 °F
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