New Melle Weather Forecast

    • 63
    • 83

    Chance Thunderstorms

    • 63
    • 81

    Rain Showers Likely

    • 62
    • 85

    Chance Thunderstorms

    • 58
    • 82

    Mostly Sunny

    • 59
    • 81

    Mostly Sunny

    • 64
    • 84

    Partly Sunny

Today 30 May St. Charles

Mostly cloudy with a slight chance of Showers and Thunderstorms this Morning, then partly sunny with a chance of Showers and Thunderstorms this afternoon. Highs in the lower 80s. East Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 30 May St. Charles

Partly cloudy in the Evening, then becoming mostly cloudy. A slight chance of Showers and Thunderstorms. Lows in the lower 60s. East Winds 5 to 10 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

New Melle Temperature Statistics

May Temperature

Washington Regional Airport (9.9 miles)

  • Lowest 7 May, 2026

    39.2 °F

  • Average May

    65.8 °F

  • Highest 27 May, 2026

    87.8 °F

Climate (2021–Present)

Washington Regional Airport (9.9 miles)

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  • Average Low 2021–2026

    47.7 °F

  • Average 2021–2026

    58.5 °F

  • Average High 2021–2026

    69.7 °F
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