Alton Weather Forecast

    • 59
    • 83

    Chance Thunderstorms

    • 58
    • 75

    Chance Thunderstorms

    • 53
    • 67

    Chance Rain Showers

    • 55
    • 74

    Slight Chance Rain Showers

    • 58
    • 71

    Chance Rain Showers

    • 57
    • 69

    Slight Chance Thunderstorms

Today 23 Aug Osborne

Mostly cloudy with scattered Showers and isolated Thunderstorms in the Morning, then mostly sunny in the afternoon. Highs in the lower 80s. Northeast Winds 10 to 15 Mph with Gusts to around 20 Mph. Chance of precipitation 40 percent.

Tonight 23 Aug Osborne

Partly cloudy. A 20 percent chance of Showers and Thunderstorms after midnight. Lows in the upper 50s. Northeast Winds around 10 Mph in the evening then becoming light.

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Alton Temperature Statistics

August Temperature

Russell, Russell Municipal Airport (41.6 miles)

  • Lowest 2 August, 2025

    59.6 °F

  • Average August

    80.9 °F

  • Highest 8 August, 2025

    104.6 °F

Climate (2020–Present)

Russell, Russell Municipal Airport (41.6 miles)

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  • Average Low 2020–2025

    43.5 °F

  • Average 2020–2025

    56.1 °F

  • Average High 2020–2025

    69.3 °F
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