Ulmarra Weather Forecast

    • 16
    • 20

    Rain

    • 17
    • 25

    Rain easing

    • 13
    • 24

    Partly cloudy

    • 11
    • 23

    Mostly sunny

    • 12
    • 24

    Partly cloudy

    • 15
    • 24

    Shower or two

    • 14
    • 24

    Possible shower

Today 18 May Northern Rivers

Cloudy. Very high chance of rain. The chance of a thunderstorm in the south during this afternoon and evening. Thunderstorms possibly severe with heavy rain which may lead to flash flooding along the coastal fringe this evening. Light winds becoming northeast to southeasterly 15 to 20 km/h in the middle of the day then tending north to northeasterly in the late afternoon. Daytime maximum temperatures around 20.

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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Ulmarra Temperature Statistics View More

May Temperature

Grafton (Agricultural Research and Advisory Station) (6km)

  • Lowest 9 May, 2026

    6.3 °C
  • Average May

    18.1 °C
  • Highest 5 May, 2026

    28.7 °C

Climate (2021–Present)

Grafton (Agricultural Research and Advisory Station) (6km)

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  • Average Low 2021–2026

    14.3 °C
  • Average 2021–2026

    19.3 °C
  • Average High 2021–2026

    26 °C
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