Merna Weather Forecast

    • 61
    • 70

    Rain Showers

    • 65
    • 81

    Chance Thunderstorms

    • 73
    • 88

    Partly Sunny

    • 75
    • 92

    Mostly Sunny

    • 74
    • 94

    Mostly Sunny

    • 74
    • 95

    Mostly Sunny

Today 26 Jun McLean

Showers with a chance of Thunderstorms. Cooler with Highs around 70. East Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 90 percent.

Tonight 26 Jun McLean

Mostly cloudy. A chance of Showers and Thunderstorms in the Evening, then a slight chance of Showers after midnight. Lows in the lower 60s. Northeast Winds 10 to 15 Mph. Chance of rain 50 percent.

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Merna Temperature Statistics

June Temperature

Bloomington/Normal, Central Illinois Regional Airport at Bloomington-Normal (5 miles)

  • Lowest 3 June, 2026

    51.1 °F

  • Average June

    70.5 °F

  • Highest 6 June, 2026

    90 °F

Climate (2021–2026)

Bloomington/Normal, Central Illinois Regional Airport at Bloomington-Normal (5 miles)

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  • Average Low 2021–2026

    43.7 °F

  • Average 2021–2026

    53.1 °F

  • Average High 2021–2026

    62.6 °F
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