Eureka Weather Forecast

    • 73
    • 94

    Slight Chance Thunderstorms

    • 70
    • 90

    Chance Thunderstorms

    • 71
    • 85

    Chance Thunderstorms

    • 73
    • 91

    Chance Thunderstorms

    • 73
    • 94

    Chance Thunderstorms

    • 74
    • 93

    Slight Chance Thunderstorms

Today 16 Jul St. Louis

Sunny. Slight chance of Thunderstorms until late Afternoon, then chance of Thunderstorms late in the afternoon. Highs in the mid 90s. Southwest Winds 5 to 10 Mph. Chance of Thunderstorms 30 percent.

Tonight 16 Jul St. Louis

Partly cloudy with a 20 percent chance of Thunderstorms. Lows in the mid 70s. Southwest Winds up to 10 Mph.

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Eureka Temperature Statistics

July Temperature

St. Louis, Spirit Of St. Louis Airport (10.6 miles)

  • Lowest 2 July, 2025

    62.1 °F

  • Average July

    79.5 °F

  • Highest 4 July, 2025

    93.7 °F

Climate (2020–Present)

St. Louis, Spirit Of St. Louis Airport (10.6 miles)

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  • Average Low 2020–2025

    45.8 °F

  • Average 2020–2025

    56.8 °F

  • Average High 2020–2025

    68 °F
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