Crystal Lake Weather Forecast

    • -5
    • 12

    Increasing Clouds

    • -8
    • 7

    Cold

    • -7
    • 6

    Cold

    • 6
    • 15

    Partly Sunny

    • 13
    • 25

    Chance Snow

    • 8
    • 24

    Mostly Cloudy

Today 28 Jan Hancock

Sunny. Highs around 13. Northwest Winds 10 to 15 Mph.

Tonight 28 Jan Hancock

Mostly clear in the Evening, then becoming mostly cloudy. Cold with Lows around 4 below. North Winds around 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Crystal Lake Temperature Statistics

January Temperature

Forest City Municipal Airport (8.1 miles)

  • Lowest 23 January, 2026

    -18.4 °F

  • Average January

    17.7 °F

  • Highest 13 January, 2026

    46.4 °F

Climate (2021–Present)

Forest City Municipal Airport (8.1 miles)

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

  • Average Low 2021–2026

    36.6 °F

  • Average 2021–2026

    47.2 °F

  • Average High 2021–2026

    57.2 °F
Get WillyWeather+ to remove ads