Hermon Weather Forecast

    • 45
    • 64

    Partly Sunny

    • 46
    • 67

    Chance Rain Showers

    • 53
    • 78

    Rain Showers Likely

    • 43
    • 67

    Slight Chance Rain Showers

    • 49
    • 69

    Partly Sunny

    • 52
    • 76

    Partly Sunny

Today 7 May Knox

Sunny with a slight chance of Showers in the Morning, then partly sunny with a chance of Showers with a slight chance of Thunderstorms in the afternoon. Highs in the mid 60s. Southwest Winds 10 to 15 Mph. Chance of rain 40 percent.

Tonight 7 May Knox

Mostly cloudy. A chance of Showers with a slight chance of Thunderstorms in the evening. Lows in the mid 40s. South Winds 5 to 10 Mph. Chance of rain 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hermon Temperature Statistics

May Temperature

Galesburg Municipal Airport (13 miles)

  • Lowest 1 May, 2026

    33.8 °F

  • Average May

    53.7 °F

  • Highest 4 May, 2026

    80.4 °F

Climate (2021–Present)

Galesburg Municipal Airport (13 miles)

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  • Average Low 2021–2026

    41.6 °F

  • Average 2021–2026

    51.9 °F

  • Average High 2021–2026

    62.3 °F
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