Merna Weather Forecast

    • 49
    • 71

    Severe Tstms

    • 47
    • 64

    Chance Rain Showers

    • 40
    • 61

    Partly Sunny

    • 39
    • 63

    Partly Sunny

    • 37
    • 59

    Partly Sunny

    • 42
    • 63

    Partly Sunny

Today 27 Apr McLean

Showers with Thunderstorms likely this Morning, then Showers and Thunderstorms this afternoon. Some Thunderstorms may be severe this afternoon. Windy with Highs in the lower 70s. South Winds 20 to 30 Mph. Chance of rain 90 percent.

Tonight 27 Apr McLean

Showers and Thunderstorms in the evening. Some Thunderstorms may be severe. Windy with Lows in the upper 40s. South Winds 20 to 30 Mph, becoming west 15 to 20 Mph after midnight. Chance of rain near 100 percent.

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Merna Temperature Statistics

April Temperature

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

  • Lowest 7 April, 2026

    30.9 °F

  • Average April

    55.9 °F

  • Highest 13 April, 2026

    82.9 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    43.8 °F

  • Average 2021–2026

    53.1 °F

  • Average High 2021–2026

    62.6 °F
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