Sylvan Lake Weather Forecast

    • 62
    • 85

    Slight Chance Thunderstorms

    • 61
    • 79

    Chance Thunderstorms

    • 58
    • 72

    Chance Thunderstorms

    • 57
    • 67

    Chance Rain Showers

    • 56
    • 68

    Chance Rain Showers

    • 56
    • 72

    Slight Chance Rain Showers

Today 16 Sep South Cass

Sunny, hot with Highs in the mid 80s. South Winds around 5 Mph.

Tonight 16 Sep South Cass

Partly cloudy with a slight chance of Showers and Thunderstorms. Humid with Lows in the lower 60s. Northwest Winds around 5 Mph, becoming north after midnight. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sylvan Lake Temperature Statistics

September Temperature

Brainerd - Crow Wing County Airport (13 miles)

  • Lowest 7 September, 2025

    34 °F

  • Average September

    59.1 °F

  • Highest 1 September, 2025

    79 °F

Climate (2020–Present)

Brainerd - Crow Wing County Airport (13 miles)

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  • Average Low 2020–2025

    34.5 °F

  • Average 2020–2025

    44.5 °F

  • Average High 2020–2025

    54.5 °F
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