Galesburg Weather Forecast

    • 75
    • 94

    Slight Chance Thunderstorms

    • 77
    • 95

    Partly Sunny

    • 75
    • 96

    Partly Sunny

    • 73
    • 93

    Slight Chance Thunderstorms

    • 72
    • 92

    Partly Sunny

    • 71
    • 92

    Slight Chance Thunderstorms

Today 31 Aug Jasper

Mostly sunny. A slight chance of Showers and Thunderstorms this afternoon. Highs in the lower 90s. Southwest Winds 5 to 10 Mph. Chance of rain 20 percent. Heat index Values up to 101 this afternoon.

Tonight 31 Aug Jasper

Partly cloudy in the Evening, then mostly cloudy with a slight chance of Showers and Thunderstorms after midnight. Humid with Lows in the mid 70s. South Winds around 5 Mph. Chance of rain 20 percent. Heat index Values up to 101 early in the evening.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Galesburg Temperature Statistics

August Temperature

Newton Municipal Airport - Earl Johnson Field (8.1 miles)

  • Lowest 23 August, 2026

    53.6 °F

  • Average August

    72.8 °F

  • Highest 11 August, 2026

    89.6 °F

Climate (2021–2026)

Newton Municipal Airport - Earl Johnson Field (8.1 miles)

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

  • Average Low 2021–2026

    41.4 °F

  • Average 2021–2026

    51.3 °F

  • Average High 2021–2026

    61.3 °F
Get WillyWeather+ to remove ads