Ernest E Orwig Airport Weather Forecast

    • 72
    • 89

    Chance Thunderstorms

    • 66
    • 91

    Slight Chance Thunderstorms

    • 68
    • 86

    Slight Chance Thunderstorms

    • 72
    • 91

    Slight Chance Thunderstorms

    • 62
    • 86

    Mostly Sunny

    • 61
    • 80

    Mostly Sunny

Today 17 Jul Mercer

Sunny after Midnight, then becoming mostly sunny. A slight chance of Thunderstorms with isolated Showers after Midnight, then a chance of Showers and Thunderstorms this afternoon. Hot with Highs around 90. Southwest Winds 5 to 10 Mph. Chance of rain 40 percent. Heat index Values up to 102.

Tonight 17 Jul Mercer

Mostly clear. A chance of Showers and Thunderstorms in the evening. Humid with Lows in the lower 70s. Southwest Winds 5 to 10 Mph. Chance of rain 40 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

    76.1 °F

  • Highest 14 July, 2026

    90.3 °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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