Hillsboro Weather Forecast

    • 71
    • 86

    Rain Showers Likely

    • 67
    • 88

    Rain Showers Likely

    • 65
    • 87

    Mostly Sunny

    • 67
    • 89

    Mostly Sunny

    • 70
    • 90

    Slight Chance Thunderstorms

    • 72
    • 92

    Slight Chance Thunderstorms

Today 29 Jun Jefferson

Mostly cloudy. Showers likely with a slight chance of Thunderstorms in the Morning, then a chance of Showers and Thunderstorms in the afternoon. Humid with Highs in the upper 80s. Southwest Winds around 5 Mph. Chance of rain 70 percent.

Tonight 29 Jun Jefferson

Mostly cloudy. Near steady temperature in the lower 70s. Southwest Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hillsboro Temperature Statistics

June Temperature

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

  • Lowest 10 June, 2025

    55.7 °F

  • Average June

    76.2 °F

  • Highest 24 June, 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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