Johnsburg Weather Forecast

    • 72
    • 87

    Slight Chance Thunderstorms

    • 74
    • 91

    Slight Chance Thunderstorms

    • 68
    • 90

    Mostly Sunny

    • 65
    • 85

    Mostly Sunny

    • 66
    • 85

    Partly Sunny

    • 66
    • 84

    Chance Thunderstorms

    • 64
    • 83

    Slight Chance Thunderstorms

Today 25 Jul Mower

Partly sunny. Warmer with Highs in the upper 80s. Southwest Winds 5 to 10 Mph. Heat index Values in the mid 90s.

Tonight 25 Jul Mower

Partly cloudy this Evening, then mostly cloudy with a slight chance of Showers and Thunderstorms after midnight. Lows in the lower 70s. South Winds 5 to 10 Mph. Chance of rain 20 percent. Heat index Values up to 100 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

    73.9 °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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