Swansea Weather Forecast

    • 71
    • 93

    Thunderstorms Likely

    • 67
    • 82

    Thunderstorms

    • 65
    • 85

    Mostly Sunny

    • 62
    • 88

    Mostly Sunny

    • 60
    • 80

    Partly Sunny

    • 63
    • 80

    Partly Sunny

Today 8 Aug St. Clair

Mostly sunny. Scattered Showers and Thunderstorms this afternoon. Highs in the lower 90s. Southwest Winds 5 to 10 Mph. Chance of rain 50 percent. Heat index Values up to 105.

Tonight 8 Aug St. Clair

Numerous Thunderstorms. Numerous Showers. Humid with Lows around 70. West Winds 5 to 10 Mph, becoming northwest after midnight. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Swansea Temperature Statistics

August Temperature

Belleville, Scott AFB/MidAmerica Airport (7.5 miles)

  • Lowest 1 August, 2022

    72.9 °F
  • Average August

    80.1 °F
  • Highest 3 August, 2022

    95 °F

Climate (2010–Present)

Belleville, Scott AFB/MidAmerica Airport (7.5 miles)

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  • Average Low 2010–Present

    47.2 °F
  • Average 2010–Present

    56.7 °F
  • Average High 2010–Present

    66.7 °F
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