Cottonwood Lake Weather Forecast

    • 48
    • 70

    Slight Chance Rain Showers

    • 53
    • 74

    Mostly Cloudy

    • 58
    • 74

    Rain Showers Likely

    • 60
    • 78

    Rain Showers

    • 57
    • 79

    Rain Showers Likely

    • 56
    • 78

    Slight Chance Thunderstorms

Today 24 Jun McHenry

Partly sunny. A chance of Showers and a slight chance of Thunderstorms in the afternoon. Highs around 70. North Winds around 15 Mph with Gusts up to 25 Mph. Chance of rain 30 percent.

Tonight 24 Jun McHenry

Mostly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then partly cloudy after midnight. Lows in the upper 40s. North Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cottonwood Lake Temperature Statistics

June Temperature

Harvey Municipal Airport (34.8 miles)

  • Lowest 14 June, 2026

    39.2 °F

  • Average June

    64 °F

  • Highest 6 June, 2026

    89.6 °F

Climate (2021–2026)

Harvey Municipal Airport (34.8 miles)

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  • Average Low 2021–2026

    30.3 °F

  • Average 2021–2026

    41.2 °F

  • Average High 2021–2026

    51.9 °F
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