Hillsboro Weather Forecast

    • 74
    • 91

    Slight Chance Thunderstorms

    • 76
    • 97

    Hot

    • 75
    • 97

    Hot

    • 75
    • 94

    Slight Chance Thunderstorms

    • 75
    • 94

    Slight Chance Thunderstorms

    • 74
    • 95

    Partly Sunny

Today 22 Jul Jefferson

Partly sunny with isolated Showers and Thunderstorms. Near steady temperature around 90. Southeast Winds around 5 Mph. Chance of rain 20 percent. Heat index Values up to 106.

Tonight 22 Jul Jefferson

Partly cloudy. Isolated Showers and Thunderstorms in the evening. Humid with Lows in the mid 70s. Southeast Winds around 5 Mph. Chance of rain 20 percent. Heat index Values up to 104 early in the evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hillsboro Temperature Statistics

July Temperature

St. Louis, Spirit Of St. Louis Airport (29.2 miles)

  • Lowest 2 July, 2025

    62.7 °F

  • Average July

    80.4 °F

  • Highest 16 July, 2025

    95.6 °F

Climate (2020–Present)

St. Louis, Spirit Of St. Louis Airport (29.2 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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