Grantham Weather Forecast

    • 14
    • 26

    Shower or two

    • 13
    • 25

    Cloudy

    • 8
    • 25

    Partly cloudy

    • 7
    • 28

    Partly cloudy

    • 8
    • 30

    Sunny

    • 9
    • 31

    Mostly sunny

    • 12
    • 27

    Possible shower

Today 28 Sep Southeast Coast

Cloudy. High chance of showers, most likely from the late morning. The chance of a thunderstorm in the afternoon and evening. Light winds becoming southeast to southwesterly 15 to 20 km/h in the early morning then becoming southeasterly 20 to 30 km/h in the morning. Overnight temperatures falling to around 14 with daytime temperatures reaching 21 to 26.

Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Grantham Temperature Statistics View More

September Temperature

Gatton (14km)

  • Lowest 17 September, 2026

    6.5 °C

  • Average September

    18.2 °C

  • Highest 21 September, 2026

    34.6 °C

Climate (2021–2026)

Gatton (14km)

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

  • Average Low 2021–2026

    13.5 °C

  • Average 2021–2026

    19.8 °C

  • Average High 2021–2026

    27.5 °C
Get WillyWeather+ to remove ads