Joliett Weather Forecast

    • 64
    • 78

    Rain Showers

    • 54
    • 78

    Slight Chance Thunderstorms

    • 55
    • 74

    Sunny

    • 58
    • 75

    Partly Sunny

    • 60
    • 78

    Partly Sunny

    • 64
    • 82

    Chance Rain Showers

Today 21 Jul Schuylkill

Showers likely with a chance of Thunderstorms in the Morning, then Showers with a chance of Thunderstorms in the afternoon. Some Thunderstorms may be severe with damaging Winds and large hail in the afternoon. Humid with Highs in the upper 70s. South Winds around 5 Mph with Gusts up to 20 Mph. Chance of rain near 100 percent.

Tonight 21 Jul Schuylkill

Mostly cloudy. Showers likely with a chance of Thunderstorms in the Evening, then a chance of Showers after midnight. Some Thunderstorms may be severe with damaging Winds and large hail in the evening. Humid with Lows in the mid 60s. Southwest Winds around 5 Mph. Gusts up to 20 Mph in the evening. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Joliett Temperature Statistics

July Temperature

Muir Army Air Field / Indiantown (13 miles)

  • Lowest 18 July, 2026

    62.4 °F

  • Average July

    79.9 °F

  • Highest 2 July, 2026

    103.3 °F

Climate (2021–2026)

Muir Army Air Field / Indiantown (13 miles)

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  • Average Low 2021–2026

    45.3 °F

  • Average 2021–2026

    54.8 °F

  • Average High 2021–2026

    64.1 °F
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