Big Stone City Weather Forecast

    • 46
    • 59

    Mostly Cloudy

    • 48
    • 61

    Decreasing Clouds

    • 52
    • 64

    Rain Showers

    • 54
    • 66

    Slight Chance Rain Showers

    • 55
    • 66

    Chance Rain Showers

    • 54
    • 68

    Slight Chance Rain Showers

    • 52
    • 67

    Mostly Cloudy

Today 21 Sep Grant

Mostly cloudy with a chance of Showers in the Morning, then partly sunny with a chance of Showers with a slight chance of Thunderstorms in the afternoon. Highs in the upper 60s. Chance of rain 50 percent.

Tonight 21 Sep Grant

Mostly cloudy. Patchy fog after midnight. Lows in the mid 40s. East Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Big Stone City Temperature Statistics

September Temperature

Ortonville, Ortonville Muncipal-Martinson Field Airport (1.9 miles)

  • Lowest 16 September, 2026

    46.4 °F

  • Average September

    66.9 °F

  • Highest 3 September, 2026

    95 °F

Climate (2021–2026)

Ortonville, Ortonville Muncipal-Martinson Field Airport (1.9 miles)

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  • Average Low 2021–2026

    36.1 °F

  • Average 2021–2026

    45.4 °F

  • Average High 2021–2026

    55.1 °F
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