Mercer Weather Forecast

    • 67
    • 82

    Rain Showers

    • 69
    • 87

    Rain Showers

    • 69
    • 89

    Rain Showers

    • 59
    • 87

    Rain Showers

    • 59
    • 82

    Slight Chance Thunderstorms

    • 58
    • 83

    Chance Thunderstorms

Today 9 Jun Mercer

Considerable cloudiness with a chance of Showers and Thunderstorms. Highs in the lower 80s. South Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 9 Jun Mercer

Showers likely with a chance of Thunderstorms. Humid with Lows in the upper 60s. South Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 70 percent.

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  • Temperature Real-Time

Mercer Temperature Statistics

June Temperature

New Castle, New Castle Municipal Airport (16.2 miles)

  • Lowest 1 June, 2026

    43 °F

  • Average June

    66.8 °F

  • Highest 5 June, 2026

    84 °F

Climate (2021–Present)

New Castle, New Castle Municipal Airport (16.2 miles)

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  • Average Low 2021–2026

    41.7 °F

  • Average 2021–2026

    51.3 °F

  • Average High 2021–2026

    61.1 °F
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