Spring Grove Weather Forecast

    • 67
    • 89

    Slight Chance Thunderstorms

    • 64
    • 85

    Partly Sunny

    • 63
    • 81

    Mostly Cloudy

    • 65
    • 79

    Mostly Cloudy

    • 67
    • 84

    Rain Showers Likely

    • 62
    • 84

    Chance Rain Showers

Today 4 Sep Houston

Mostly sunny. A chance of Showers with a slight chance of Thunderstorms in the morning. Humid with Highs in the upper 80s. Southwest Winds around 5 Mph. Chance of rain 40 percent. Heat index Values up to 100 in the afternoon.

Tonight 4 Sep Houston

Partly cloudy. Humid with Lows in the upper 60s. West Winds around 5 Mph, becoming northeast after midnight. Heat index Values in the mid 90s early in the evening.

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Spring Grove Temperature Statistics

September Temperature

Decorah (19.3 miles)

  • Lowest 1 September, 2026

    69.8 °F

  • Average September

    77.3 °F

  • Highest 1 September, 2026

    86 °F

Climate (2021–2026)

Decorah (19.3 miles)

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  • Average Low 2021–2026

    39.1 °F

  • Average 2021–2026

    47.8 °F

  • Average High 2021–2026

    56.4 °F
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