Granite Falls Weather Forecast

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    • 63

    Chance Rain Showers

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    • 67

    Rain Showers

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    • 63

    Rain Showers

    • 58
    • 70

    Mostly Cloudy

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    • 70

    Rain Showers Likely

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    • 62

    Chance Rain Showers

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    • 61

    Chance Rain Showers

Today 24 Sep Yellow Medicine

Mostly sunny. Highs in the lower 60s.

Tonight 24 Sep Yellow Medicine

Cloudy. Patchy fog through the night. Areas of drizzle early in the evening. Patchy drizzle in the late evening and overnight. Near steady temperature in the upper 50s. Southeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Granite Falls Temperature Statistics

September Temperature

Granite Falls, Granite Falls Municipal Airport/Lenzen-Roe Memorial Field (3.7 miles)

  • Lowest 16 September, 2026

    44.6 °F

  • Average September

    66.9 °F

  • Highest 3 September, 2026

    92.8 °F

Climate (2021–2026)

Granite Falls, Granite Falls Municipal Airport/Lenzen-Roe Memorial Field (3.7 miles)

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  • Average Low 2021–2026

    37.5 °F

  • Average 2021–2026

    48 °F

  • Average High 2021–2026

    58.4 °F
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