Rio Weather Forecast

    • 16
    • 30

    Increasing Clouds

    • 23
    • 48

    Becoming Sunny

    • 24
    • 40

    Snow Likely

    • 27
    • 40

    Partly Sunny

    • 32
    • 61

    Mostly Sunny

    • 21
    • 48

    Partly Sunny

    • 21
    • 37

    Chance Rain/Snow

Today 23 Feb Knox

Sunny. Near steady temperature in the upper 20s. Northwest Winds 5 to 10 Mph.

Tonight 23 Feb Knox

Mostly clear this Evening, then becoming mostly cloudy. Lows around 16. West Winds around 5 Mph, becoming south with Gusts up to 20 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rio Temperature Statistics

February Temperature

Galesburg Municipal Airport (11.8 miles)

  • Lowest 1 February, 2026

    1 °F

  • Average February

    34.1 °F

  • Highest 16 February, 2026

    67.5 °F

Climate (2021–Present)

Galesburg Municipal Airport (11.8 miles)

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  • Average Low 2021–2026

    41.5 °F

  • Average 2021–2026

    51.8 °F

  • Average High 2021–2026

    62.1 °F
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