Johnsburg Weather Forecast

    • 63
    • 79

    Slight Chance Thunderstorms

    • 60
    • 79

    Mostly Sunny

    • 54
    • 77

    Mostly Sunny

    • 57
    • 75

    Partly Sunny

    • 61
    • 76

    Chance Rain Showers

    • 62
    • 80

    Slight Chance Thunderstorms

Today 20 Aug Mower

Mostly sunny. Highs in the upper 70s. South Winds 5 to 10 Mph.

Tonight 20 Aug Mower

Mostly cloudy with a slight chance of Showers and Thunderstorms. Humid with Lows in the lower 60s. Southwest Winds 5 to 10 Mph. Chance of rain 20 percent.

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Johnsburg Temperature Statistics

August Temperature

Austin Municipal (13.7 miles)

  • Lowest 6 August, 2026

    51.1 °F

  • Average August

    70.1 °F

  • Highest 9 August, 2026

    84.6 °F

Climate (2021–2026)

Austin Municipal (13.7 miles)

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  • Average Low 2021–2026

    38.7 °F

  • Average 2021–2026

    48 °F

  • Average High 2021–2026

    57.4 °F
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