Forsythe Lake Weather Forecast

    • 68
    • 90

    Increasing Clouds

    • 59
    • 81

    Chance Rain Showers

    • 57
    • 85

    Mostly Sunny

    • 62
    • 83

    Mostly Sunny

    • 67
    • 86

    Partly Sunny

    • 58
    • 83

    Slight Chance Thunderstorms

Today 30 Jul Polk

Partly sunny. Highs in the upper 80s. Southwest Winds up to 10 Mph.

Tonight 30 Jul Polk

Increasing Clouds. Lows in the upper 60s. South Winds up to 5 Mph.

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Forsythe Lake Temperature Statistics

July Temperature

Siren, Burnett County Airport (16.8 miles)

  • Lowest 22 July, 2026

    42.8 °F

  • Average July

    73.9 °F

  • Highest 17 July, 2026

    94.3 °F

Climate (2021–2026)

Siren, Burnett County Airport (16.8 miles)

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  • Average Low 2021–2026

    33 °F

  • Average 2021–2026

    44 °F

  • Average High 2021–2026

    53.8 °F
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