Cedar River National Grassland Weather Forecast

    • 58
    • 67

    Rain Showers

    • 56
    • 78

    Chance Rain Showers

    • 55
    • 75

    Chance Rain Showers

    • 51
    • 72

    Chance Rain Showers

    • 50
    • 70

    Partly Sunny

    • 50
    • 71

    Partly Sunny

Today 14 Sep Sioux

Patchy fog in the morning. A chance of Thunderstorms. Showers. Highs in the mid 70s. Southeast Winds 5 to 10 Mph.

Tonight 14 Sep Sioux

Cloudy with a chance of Showers and a slight chance of Thunderstorms. Areas of fog. Lows in the lower 60s. Light and variable Winds. Chance of rain 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cedar River National Grassland Temperature Statistics

September Temperature

Hettinger, Hettinger Municipal Airport (44.7 miles)

  • Lowest 6 September, 2025

    28 °F

  • Average September

    60.6 °F

  • Highest 11 September, 2025

    87.1 °F

Climate (2020–Present)

Hettinger, Hettinger Municipal Airport (44.7 miles)

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  • Average Low 2020–2025

    31 °F

  • Average 2020–2025

    44.7 °F

  • Average High 2020–2025

    58.3 °F
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