Alkali Lake Weather Forecast

    • 55
    • 73

    Rain Showers Likely

    • 54
    • 78

    Partly Sunny

    • 51
    • 72

    Mostly Cloudy

    • 51
    • 65

    Mostly Cloudy

    • 51
    • 65

    Slight Chance Rain Showers

    • 50
    • 68

    Mostly Cloudy

Today 15 Sep McHenry

Decreasing Clouds. Patchy fog in the morning. Showers. A slight chance of Thunderstorms in the Morning, then a chance of Thunderstorms in the afternoon. Highs around 70. South Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 15 Sep McHenry

Mostly cloudy with a slight chance of Showers. Patchy fog. Lows in the lower 60s. Southeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Alkali Lake Temperature Statistics

September Temperature

Harvey Municipal Airport (22.4 miles)

  • Lowest 7 September, 2025

    33.8 °F

  • Average September

    58.2 °F

  • Highest 1 September, 2025

    80.6 °F

Climate (2020–Present)

Harvey Municipal Airport (22.4 miles)

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  • Average Low 2020–2025

    30.1 °F

  • Average 2020–2025

    41.1 °F

  • Average High 2020–2025

    51.8 °F
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