Monmouth Weather Forecast

    • 45
    • 62

    Slight Chance Rain Showers

    • 41
    • 61

    Mostly Sunny

    • 40
    • 62

    Slight Chance Thunderstorms

    • 37
    • 59

    Partly Sunny

    • 43
    • 63

    Mostly Sunny

    • 48
    • 71

    Slight Chance Rain Showers

Today 28 Apr Warren

Mostly cloudy in the Morning, then becoming partly sunny. Highs in the lower 60s. Northwest Winds 5 to 10 Mph. Gusts up to 25 Mph in the morning.

Tonight 28 Apr Warren

Mostly cloudy. Lows in the mid 40s. North Winds 5 to 10 Mph.

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Monmouth Temperature Statistics

April Temperature

Galesburg Municipal Airport (11.2 miles)

  • Lowest 5 April, 2026

    32.9 °F

  • Average April

    53.7 °F

  • Highest 17 April, 2026

    82.8 °F

Climate (2021–Present)

Galesburg Municipal Airport (11.2 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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