Big Sandy Lake Weather Forecast

    • 51
    • 70

    Chance Rain Showers

    • 50
    • 75

    Rain Showers Likely

    • 54
    • 81

    Mostly Sunny

    • 59
    • 85

    Slight Chance Thunderstorms

    • 60
    • 89

    Partly Sunny

    • 58
    • 87

    Slight Chance Thunderstorms

    • 57
    • 84

    Partly Sunny

Today 22 May Monroe

Mostly cloudy with a 20 percent chance of Showers. Near steady temperature in the mid 60s. Southeast Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 22 May Monroe

Mostly cloudy. A chance of Showers this evening. Lows around 50. East Winds 10 to 15 Mph. Gusts up to 30 Mph this evening. Chance of rain 50 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Big Sandy Lake Temperature Statistics

May Temperature

Sparta, Sparta / Fort McCoy Airport (2.5 miles)

  • Lowest 6 May, 2026

    25.5 °F

  • Average May

    53.8 °F

  • Highest 15 May, 2026

    84.9 °F

Climate (2021–Present)

Sparta, Sparta / Fort McCoy Airport (2.5 miles)

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

  • Average Low 2021–2026

    34.9 °F

  • Average 2021–2026

    47.6 °F

  • Average High 2021–2026

    58.3 °F
Get WillyWeather+ to remove ads