Johnsburg Weather Forecast

    • 74
    • 91

    Slight Chance Thunderstorms

    • 67
    • 91

    Mostly Sunny

    • 65
    • 84

    Mostly Sunny

    • 66
    • 85

    Partly Sunny

    • 66
    • 84

    Chance Thunderstorms

    • 63
    • 79

    Slight Chance Thunderstorms

Today 26 Jul Mower

Partly sunny. Hot with Highs in the lower 90s. Southwest Winds 5 to 10 Mph. Heat index Values up to 110.

Tonight 26 Jul Mower

Partly cloudy. A slight chance of Showers and Thunderstorms after midnight. Lows in the mid 70s. South Winds 5 to 10 Mph. Chance of rain 20 percent. Heat index Values up to 110 early this evening.

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Johnsburg Temperature Statistics

July Temperature

Austin Municipal (13.7 miles)

  • Lowest 22 July, 2026

    55.2 °F

  • Average July

    73.7 °F

  • Highest 16 July, 2026

    88.9 °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

    57.5 °F
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