Thornton Weather Forecast

    • 65
    • 84

    Slight Chance Thunderstorms

    • 62
    • 82

    Mostly Sunny

    • 61
    • 81

    Mostly Sunny

    • 66
    • 82

    Mostly Cloudy

    • 71
    • 88

    Slight Chance Thunderstorms

    • 73
    • 91

    Chance Rain Showers

    • 71
    • 90

    Slight Chance Rain Showers

Today 26 Aug Southern Cook

Partly cloudy. A slight chance of Showers. Temperatures in the lower 80s. West Winds 10 to 15 Mph. Chance of precipitation 20 percent.

Tonight 26 Aug Southern Cook

Mostly clear. A slight chance of Showers early in the evening. Lows in the mid 60s. West Winds 5 to 10 Mph. Chance of precipitation 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Thornton Temperature Statistics

August Temperature

Lansing Municipal Airport (4.3 miles)

  • Lowest 24 August, 2026

    53.6 °F

  • Average August

    72.2 °F

  • Highest 10 August, 2026

    86.9 °F

Climate (2021–2026)

Lansing Municipal Airport (4.3 miles)

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  • Average Low 2021–2026

    42.4 °F

  • Average 2021–2026

    51.5 °F

  • Average High 2021–2026

    60.4 °F
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