Stockton Weather Forecast

    • 55
    • 81

    Decreasing Clouds

    • 49
    • 71

    Chance Thunderstorms

    • 63
    • 73

    Rain Showers Likely

    • 58
    • 77

    Rain Showers

    • 59
    • 73

    Rain Showers

    • 55
    • 74

    Slight Chance Thunderstorms

Today 12 Sep Jo Daviess

Mostly sunny. Highs in the lower 80s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph, becoming northwest this afternoon.

Tonight 12 Sep Jo Daviess

Mostly clear. Less humid with Lows in the mid 50s. North Winds 5 to 10 Mph.

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  • Temperature Real-Time

Stockton Temperature Statistics

September Temperature

Tri-Township Airport (21.7 miles)

  • Lowest 7 September, 2026

    58.6 °F

  • Average September

    76.9 °F

  • Highest 4 September, 2026

    95.9 °F

Climate (2021–2026)

Tri-Township Airport (21.7 miles)

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  • Average Low 2021–2026

    42.5 °F

  • Average 2021–2026

    52.5 °F

  • Average High 2021–2026

    62.8 °F
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