Cottonwood Lake National Wildlife Refuge Weather Forecast

    • 25
    • 57

    Chance Rain

    • 25
    • 39

    Mostly Cloudy

    • 27
    • 55

    Mostly Cloudy

    • 26
    • 44

    Mostly Cloudy

    • 19
    • 60

    Slight Chance Snow

    • 18
    • 31

    Slight Chance Snow

Today 21 Mar McHenry

Mostly cloudy. Areas of fog early in the morning. A slight chance of rain in the afternoon. Highs around 50. West Winds around 15 Mph with Gusts up to 30 Mph, becoming north with Gusts up to 30 Mph. Chance of rain 20 percent.

Tonight 21 Mar McHenry

Mostly cloudy. Lows in the mid 20s. North Winds 5 to 15 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Cottonwood Lake National Wildlife Refuge Temperature Statistics

March Temperature

Harvey Municipal Airport (34.2 miles)

  • Lowest 16 March, 2026

    -9.4 °F

  • Average March

    22.8 °F

  • Highest 8 March, 2026

    60.8 °F

Climate (2021–Present)

Harvey Municipal Airport (34.2 miles)

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

  • Average Low 2021–2026

    30.3 °F

  • Average 2021–2026

    41.2 °F

  • Average High 2021–2026

    52 °F
Get WillyWeather+ to remove ads