Monmouth Weather Forecast

    • 63
    • 75

    Increasing Clouds

    • 64
    • 71

    Rain Showers

    • 52
    • 69

    Rain Showers

    • 49
    • 64

    Slight Chance Rain Showers

    • 52
    • 65

    Slight Chance Rain Showers

    • 47
    • 64

    Mostly Sunny

Today 29 Sep Jackson

Partly sunny. Highs in the mid 70s. South Winds 5 to 10 Mph.

Tonight 29 Sep Jackson

Cloudy. Showers likely after midnight. Not as cool with Lows in the lower 60s. South Winds 5 to 10 Mph. Chance of rain 70 percent.

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Monmouth Temperature Statistics

September Temperature

Monticello Regional Airport (17.4 miles)

  • Lowest 23 September, 2026

    48.2 °F

  • Average September

    68 °F

  • Highest 1 September, 2026

    93.2 °F

Climate (2021–2026)

Monticello Regional Airport (17.4 miles)

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  • Average Low 2021–2026

    37.4 °F

  • Average 2021–2026

    48.1 °F

  • Average High 2021–2026

    58.4 °F
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