Ernest E Orwig Airport Weather Forecast

    • 73
    • 88

    Rain Showers Likely

    • 62
    • 83

    Mostly Sunny

    • 57
    • 78

    Mostly Sunny

    • 60
    • 79

    Partly Sunny

    • 61
    • 79

    Mostly Sunny

    • 66
    • 85

    Mostly Sunny

Today 20 Jul Mercer

Sunny. Patchy smoke. A slight chance of Showers and Thunderstorms this afternoon. Highs in the upper 80s. South Winds 5 to 10 Mph. Chance of rain 20 percent. Heat index Values up to 101 this afternoon.

Tonight 20 Jul Mercer

Partly cloudy. A slight chance of Showers and Thunderstorms in the Evening, then Showers likely with a chance of Thunderstorms after midnight. Humid with Lows in the lower 70s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 70 percent. Heat index Values up to 100 early in the evening.

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Ernest E Orwig Airport Temperature Statistics

July Temperature

Galesburg Municipal Airport (11.2 miles)

  • Lowest 8 July, 2026

    60.6 °F

  • Average July

    76.8 °F

  • Highest 16 July, 2026

    90.7 °F

Climate (2021–2026)

Galesburg Municipal Airport (11.2 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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