Johnson Lake Weather Forecast

    • 54
    • 89

    Breezy

    • 49
    • 73

    Chance Rain Showers

    • 50
    • 67

    Rain Showers

    • 48
    • 70

    Rain Showers

    • 48
    • 67

    Partly Sunny

    • 49
    • 68

    Chance Rain Showers

    • 50
    • 69

    Slight Chance Rain Showers

Today 11 Sep Brookings

Mostly sunny and windy. Highs in the mid 80s. South Winds 25 to 30 Mph with Gusts up to 50 Mph.

Tonight 11 Sep Brookings

Partly cloudy with isolated Showers this Evening, then mostly clear after midnight. Breezy with Lows in the mid 50s. West Winds 15 to 25 Mph with Gusts up to 45 Mph, becoming north 10 to 15 Mph with Gusts up to 30 Mph after midnight. Chance of rain 20 percent.

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Johnson Lake Temperature Statistics

September Temperature

Brookings, Brookings Municipal Airport (13.7 miles)

  • Lowest 9 September, 2026

    53.1 °F

  • Average September

    73.6 °F

  • Highest 3 September, 2026

    91 °F

Climate (2021–2026)

Brookings, Brookings Municipal Airport (13.7 miles)

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  • Average Low 2021–2026

    35.3 °F

  • Average 2021–2026

    45.5 °F

  • Average High 2021–2026

    55.7 °F
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