Hillsboro Weather Forecast

    • 44
    • 66

    Increasing Clouds

    • 47
    • 74

    Partly Sunny

    • 52
    • 79

    Mostly Sunny

    • 56
    • 81

    Sunny

    • 36
    • 81

    Partly Sunny

    • 34
    • 54

    Mostly Cloudy

Today 18 Mar Jefferson

Partly sunny this Morning, then clearing. Not as cool with Highs in the mid 60s. South Winds 5 to 10 Mph, becoming west this afternoon.

Tonight 18 Mar Jefferson

Mostly cloudy. Not as cool with Lows in the mid 40s. Southwest Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hillsboro Temperature Statistics

March Temperature

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

  • Lowest 1 March, 2026

    27 °F

  • Average March

    53.3 °F

  • Highest 10 March, 2026

    84.9 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    45.9 °F

  • Average 2021–2026

    57.2 °F

  • Average High 2021–2026

    68.6 °F
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