Crystal Lake Weather Forecast

    • 20
    • 45

    Clearing Late

    • 22
    • 27

    Mostly Cloudy

    • 30
    • 32

    Wintry Mix

    • 17
    • 39

    Partly Sunny

    • 23
    • 30

    Chance Snow

    • 20
    • 34

    Snow Likely

    • 13
    • 30

    Partly Sunny

Today 3 Feb McHenry

Patchy fog late in the morning. Cloudy. Highs in the lower 40s. North Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 3 Feb McHenry

Mostly cloudy until early morning then clearing. Lows around 19. North Winds 10 to 15 Mph with Gusts up to 25 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Crystal Lake Temperature Statistics

February Temperature

Chicago / Wheeling, Pal-Waukee Airport (22.4 miles)

  • Lowest 1 February, 2025

    28.9 °F

  • Average February

    30.8 °F

  • Highest 1 February, 2025

    33.1 °F

Climate (2020–Present)

Chicago / Wheeling, Pal-Waukee Airport (22.4 miles)

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

  • Average Low 2020–2025

    44.2 °F

  • Average 2020–2025

    52.9 °F

  • Average High 2020–2025

    61.3 °F
Get WillyWeather+ to remove ads