Johnsburg Weather Forecast

    • 34
    • 51

    Decreasing Clouds

    • 35
    • 60

    Mostly Sunny

    • 44
    • 68

    Partly Sunny

    • 42
    • 71

    Partly Sunny

    • 37
    • 61

    Mostly Sunny

    • 46
    • 67

    Slight Chance Thunderstorms

    • 46
    • 72

    Slight Chance Thunderstorms

Today 6 May Mower

Partly sunny. Highs around 50. Northwest Winds 10 to 15 Mph.

Tonight 6 May Mower

Partly cloudy this Evening, then becoming mostly cloudy. Lows in the mid 30s. Northwest Winds 10 to 15 Mph, becoming south around 5 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Johnsburg Temperature Statistics

May Temperature

Austin Municipal (13.7 miles)

  • Lowest 2 May, 2026

    32.4 °F

  • Average May

    53 °F

  • Highest 3 May, 2026

    68.9 °F

Climate (2021–Present)

Austin Municipal (13.7 miles)

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  • Average Low 2021–2026

    38.7 °F

  • Average 2021–2026

    48.1 °F

  • Average High 2021–2026

    57.5 °F
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