Johnsburg Weather Forecast

    • 71
    • 82

    Slight Chance Rain Showers

    • 68
    • 88

    Chance Thunderstorms

    • 68
    • 86

    Chance Thunderstorms

    • 67
    • 85

    Slight Chance Thunderstorms

    • 68
    • 83

    Chance Rain Showers

    • 67
    • 84

    Partly Sunny

Today 30 Aug Mower

Mostly sunny. Near steady temperature in the mid 80s. South Winds 10 to 15 Mph. Heat index Values in the mid 90s.

Tonight 30 Aug Mower

Partly cloudy with scattered Showers and Thunderstorms this Evening, then mostly cloudy with isolated Showers and Thunderstorms after midnight. Lows in the lower 70s. South Winds 10 to 15 Mph. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Johnsburg Temperature Statistics

August Temperature

Austin Municipal (13.7 miles)

  • Lowest 23 August, 2026

    49.6 °F

  • Average August

    69 °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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