Sunbeam Weather Forecast

    • 61
    • 82

    Chance Rain Showers

    • 57
    • 84

    Chance Thunderstorms

    • 56
    • 84

    Mostly Sunny

    • 58
    • 85

    Partly Sunny

    • 64
    • 87

    Mostly Cloudy

    • 66
    • 89

    Chance Thunderstorms

Today 31 May Mercer

Mostly cloudy. A chance of Showers with a slight chance of Thunderstorms. Highs in the lower 80s. Southeast Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 50 percent.

Tonight 31 May Mercer

Partly cloudy. A chance of Showers with a slight chance of Thunderstorms after midnight. Lows in the lower 60s. East Winds 5 to 10 Mph. Chance of rain 30 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Sunbeam Temperature Statistics

May Temperature

Galesburg Municipal Airport (20.5 miles)

  • Lowest 7 May, 2026

    32.7 °F

  • Average May

    61.3 °F

  • Highest 27 May, 2026

    88.7 °F

Climate (2021–Present)

Galesburg Municipal Airport (20.5 miles)

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

  • Average Low 2021–2026

    41.6 °F

  • Average 2021–2026

    52 °F

  • Average High 2021–2026

    62.4 °F
Get WillyWeather+ to remove ads