Johnsonville Weather Forecast

    • 61
    • 87

    Increasing Clouds

    • 61
    • 75

    Rain Showers

    • 59
    • 73

    Rain Showers Likely

    • 55
    • 69

    Chance Thunderstorms

    • 55
    • 70

    Slight Chance Thunderstorms

    • 57
    • 74

    Partly Sunny

Today 16 Sep Deuel

Mostly sunny. Highs in the mid 80s. Southwest Winds 5 to 10 Mph.

Tonight 16 Sep Deuel

Mostly clear. Near steady temperature in the upper 60s. South Winds around 10 Mph with Gusts up to 20 Mph.

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Johnsonville Temperature Statistics

September Temperature

Brookings, Brookings Municipal Airport (16.8 miles)

  • Lowest 7 September, 2025

    36 °F
  • Average September

    58.2 °F
  • Highest 2 September, 2025

    79 °F

Climate (2020–Present)

Brookings, Brookings Municipal Airport (16.8 miles)

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  • Average Low 2020–2025

    35.1 °F
  • Average 2020–2025

    45.3 °F
  • Average High 2020–2025

    55.4 °F
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