Westchester Weather Forecast

    • 21
    • 27

    Mostly Cloudy

    • 35
    • 42

    Chance Rain

    • 21
    • 41

    Breezy

    • 20
    • 31

    Chance Snow

    • 7
    • 29

    Mostly Cloudy

    • 6
    • 16

    Mostly Cloudy

    • 12
    • 21

    Mostly Cloudy

Today 8 Dec Sangamon

Mostly sunny. Near steady temperature in the lower 20s. South Winds around 5 Mph.

Tonight 8 Dec Sangamon

Partly cloudy in the Evening, then becoming mostly cloudy. Not as cool with Lows in the lower 20s. Temperature rising into the upper 20s after midnight. South Winds 10 to 15 Mph with Gusts up to 25 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Westchester Temperature Statistics

December Temperature

Springfield - Abraham Lincoln Capital Airport (6.2 miles)

  • Lowest 4 December, 2025

    1.9 °F

  • Average December

    22.6 °F

  • Highest 6 December, 2025

    39.9 °F

Climate (2020–Present)

Springfield - Abraham Lincoln Capital Airport (6.2 miles)

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

  • Average Low 2020–2025

    44.9 °F

  • Average 2020–2025

    55.2 °F

  • Average High 2020–2025

    65.1 °F
Get WillyWeather+ to remove ads