Appleton Weather Forecast

    • 53
    • 75

    Increasing Clouds

    • 61
    • 80

    Chance Thunderstorms

    • 61
    • 85

    Thunderstorms Likely

    • 67
    • 85

    Chance Thunderstorms

    • 65
    • 88

    Thunderstorms Likely

    • 56
    • 78

    Rain Showers Likely

Today 14 May Knox

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

Tonight 14 May Knox

Clear. Lows in the mid 40s. Southeast Winds around 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Appleton Temperature Statistics

May Temperature

Galesburg Municipal Airport (13.7 miles)

  • Lowest 7 May, 2026

    32.7 °F

  • Average May

    53.7 °F

  • Highest 4 May, 2026

    80.4 °F

Climate (2021–Present)

Galesburg Municipal Airport (13.7 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    41.6 °F

  • Average 2021–2026

    52 °F

  • Average High 2021–2026

    62.3 °F
Get WillyWeather+ to remove ads