Thornton Weather Forecast

    • 17
    • 24

    Slight Chance Snow

    • 33
    • 37

    Rain

    • 15
    • 35

    Snow Likely

    • 13
    • 24

    Chance Snow

    • 4
    • 23

    Chance Snow

    • 3
    • 12

    Slight Chance Snow

    • 9
    • 16

    Mostly Cloudy

Today 8 Dec Southern Cook

Mostly cloudy. Highs in the mid 20s. Southeast Winds around 5 Mph.

Tonight 8 Dec Southern Cook

Mostly cloudy. A slight chance of snow after midnight. Blustery. Lows around 16. Temperature rising into the mid 20s after midnight. South Winds 5 to 10 Mph, increasing to southwest 10 to 15 Mph with Gusts up to 30 Mph after midnight. Chance of precipitation 20 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Thornton Temperature Statistics

December Temperature

Lansing Municipal Airport (4.3 miles)

  • Lowest 4 December, 2025

    2.1 °F

  • Average December

    21.4 °F

  • Highest 6 December, 2025

    32 °F

Climate (2020–Present)

Lansing Municipal Airport (4.3 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    42.4 °F

  • Average 2020–2025

    51.5 °F

  • Average High 2020–2025

    60.3 °F
Get WillyWeather+ to remove ads