Thornton Weather Forecast

    • 74
    • 94

    Patchy Smoke

    • 73
    • 93

    Chance Thunderstorms

    • 72
    • 89

    Rain Showers Likely

    • 70
    • 91

    Chance Thunderstorms

    • 69
    • 86

    Chance Thunderstorms

    • 69
    • 89

    Chance Thunderstorms

Today 15 Jul Southern Cook

Mostly sunny. Hot. Near steady temperature in the lower 90s. West Winds around 5 Mph. Heat index Values up to 101.

Tonight 15 Jul Southern Cook

Partly cloudy in the Evening, then becoming mostly cloudy. Patchy smoke late. Humid with Lows in the mid 70s. Northeast Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Thornton Temperature Statistics

July Temperature

Lansing Municipal Airport (4.3 miles)

  • Lowest 13 July, 2026

    62.6 °F

  • Average July

    76 °F

  • Highest 2 July, 2026

    93.4 °F

Climate (2021–2026)

Lansing Municipal Airport (4.3 miles)

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  • Average Low 2021–2026

    42.5 °F

  • Average 2021–2026

    51.6 °F

  • Average High 2021–2026

    60.5 °F
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