Canonsburg Weather Forecast

    • 32
    • 40

    Mostly Cloudy

    • 36
    • 52

    Chance Rain

    • 46
    • 60

    Chance Rain

    • 46
    • 64

    Mostly Cloudy

    • 36
    • 67

    Chance Rain

    • 29
    • 50

    Mostly Sunny

Today 18 Mar Washington

Partly sunny. Cold with Highs in the upper 30s. South Winds 5 to 10 Mph.

Tonight 18 Mar Washington

Mostly cloudy. Lows in the lower 30s. South Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Canonsburg Temperature Statistics

March Temperature

Washington - Washington County Airport (9.9 miles)

  • Lowest 2 March, 2026

    19.9 °F

  • Average March

    50.3 °F

  • Highest 7 March, 2026

    79 °F

Climate (2021–Present)

Washington - Washington County Airport (9.9 miles)

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  • Average Low 2021–2026

    42.4 °F

  • Average 2021–2026

    52.5 °F

  • Average High 2021–2026

    62.5 °F
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