Antioch Weather Forecast

    • 74
    • 99

    Slight Chance Thunderstorms

    • 75
    • 98

    Hot

    • 73
    • 98

    Hot

    • 70
    • 98

    Hot

    • 72
    • 98

    Hot

    • 72
    • 98

    Hot

Today 14 Sep Union

Partly cloudy. A slight chance of Showers and Thunderstorms in the afternoon. Hot with Highs in the upper 90s. Light and variable Winds, becoming south around 5 Mph in the afternoon. Chance of rain 20 percent. Heat index Values up to 105 in the afternoon.

Tonight 14 Sep Union

Mostly clear. Lows in the mid 70s. South Winds around 5 Mph in the Evening, becoming light and variable.

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Antioch Temperature Statistics

September Temperature

Monroe Regional Airport (21.1 miles)

  • Lowest 10 September, 2026

    72.6 °F
  • Average September

    86.2 °F
  • Highest 6 September, 2026

    101.6 °F

Climate (2021–2026)

Monroe Regional Airport (21.1 miles)

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  • Average Low 2021–2026

    58.1 °F
  • Average 2021–2026

    68.7 °F
  • Average High 2021–2026

    79.7 °F
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