Sunbeam Weather Forecast

    • 72
    • 89

    Chance Thunderstorms

    • 73
    • 88

    Chance Thunderstorms

    • 72
    • 88

    Rain Showers Likely

    • 67
    • 84

    Chance Rain Showers

    • 63
    • 77

    Chance Rain Showers

    • 63
    • 75

    Chance Rain Showers

Today 9 Aug Mercer

Mostly cloudy this Morning, then becoming partly sunny. A chance of Thunderstorms. A chance of Showers. Highs in the upper 80s. South Winds 5 to 10 Mph. Chance of rain 50 percent. Heat index Values up to 104 this afternoon.

Tonight 9 Aug Mercer

Partly cloudy with a chance of Showers and Thunderstorms. Humid with Lows in the lower 70s. South Winds 5 to 10 Mph. Chance of rain 40 percent. Heat index Values up to 102 early in the evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sunbeam Temperature Statistics

August Temperature

Galesburg Municipal Airport (20.5 miles)

  • Lowest 3 August, 2026

    57.7 °F

  • Average August

    71.3 °F

  • Highest 4 August, 2026

    85.3 °F

Climate (2021–2026)

Galesburg Municipal Airport (20.5 miles)

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  • Average Low 2021–2026

    41.7 °F

  • Average 2021–2026

    52.1 °F

  • Average High 2021–2026

    62.5 °F
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