Thornton Weather Forecast

    • 77
    • 93

    Mostly Sunny

    • 75
    • 95

    Chance Thunderstorms

    • 74
    • 91

    Thunderstorms Likely

    • 70
    • 88

    Thunderstorms Likely

    • 68
    • 87

    Chance Thunderstorms

    • 67
    • 86

    Slight Chance Thunderstorms

Today 1 Jul Southern Cook

Mostly sunny. Hot. Highs in the mid 90s. Southwest Winds 10 to 15 Mph. Gusts up to 25 Mph in the afternoon. Heat index Values up to 105.

Tonight 1 Jul Southern Cook

Clear. Lows in the upper 70s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph, Diminishing to 5 to 10 Mph after midnight.

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Thornton Temperature Statistics

July Temperature

Lansing Municipal Airport (4.3 miles)

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  • Average July

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Climate (2021–2026)

Lansing Municipal Airport (4.3 miles)

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  • Average Low 2021–2026

    42.4 °F

  • Average 2021–2026

    51.6 °F

  • Average High 2021–2026

    60.5 °F
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