Forest Lake Weather Forecast

    • 59
    • 71

    Chance Thunderstorms

    • 56
    • 76

    Partly Sunny

    • 61
    • 79

    Partly Sunny

    • 64
    • 83

    Slight Chance Thunderstorms

    • 62
    • 83

    Slight Chance Thunderstorms

    • 59
    • 79

    Slight Chance Rain Showers

Today 9 Sep Washington

Cloudy with a 50 percent chance of Thunderstorms. Highs in the lower 70s. South Winds 5 to 10 Mph.

Tonight 9 Sep Washington

Mostly cloudy. A 30 percent chance of Thunderstorms in the evening. Lows in the upper 50s. Southeast Winds up to 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Forest Lake Temperature Statistics

September Temperature

L O Simenstad Municipal Airport (14.3 miles)

  • Lowest 6 September, 2025

    39.4 °F

  • Average September

    57 °F

  • Highest 1 September, 2025

    78.3 °F

Climate (2020–Present)

L O Simenstad Municipal Airport (14.3 miles)

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  • Average Low 2020–2025

    36.7 °F

  • Average 2020–2025

    46.9 °F

  • Average High 2020–2025

    56.6 °F
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