Thornton Weather Forecast

    • 22
    • 25

    Snow

    • 15
    • 37

    Chance Snow

    • 7
    • 19

    Chance Snow

    • 8
    • 18

    Slight Chance Snow

    • 3
    • 14

    Slight Chance Snow

    • 11
    • 18

    Mostly Cloudy

Today 15 Jan Southern Cook

Partly cloudy. Isolated Flurries in the morning. A chance of Flurries late. Highs in the mid 20s. North Winds 10 to 15 Mph with Gusts up to 25 Mph, becoming west in the afternoon.

Tonight 15 Jan Southern Cook

Snow. Snow accumulation around an inch. Blustery with Lows in the lower 20s. Southwest Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of precipitation 80 percent.

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  • Temperature Real-Time

Thornton Temperature Statistics

January Temperature

Lansing Municipal Airport (4.3 miles)

  • Lowest 1 January, 2026

    12.6 °F

  • Average January

    33 °F

  • Highest 8 January, 2026

    61.3 °F

Climate (2021–Present)

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

    60.3 °F
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