Onslow Weather Forecast

    • 25
    • 35

    Mostly sunny

    • 26
    • 35

    Partly cloudy

    • 25
    • 36

    Mostly sunny

    • 25
    • 39

    Sunny

    • 26
    • 38

    Partly cloudy

    • 28
    • 37

    Shower or two

    • 26
    • 34

    Shower or two. Becoming windy

Today 21 Mar Pilbara

Partly cloudy. Medium chance of showers. The chance of a thunderstorm, possibly severe with heavy rain which may lead to flash flooding during this afternoon and evening. Light winds becoming northeast to southeasterly 15 to 20 km/h in the morning then tending northwest to northeasterly in the evening. Daytime maximum temperatures 34 to 40.

Pilbara West Coastal Waters

Cape Preston to North West Cape
Wind
Variable about 10 knots becoming northwest to northeasterly 10 to 15 knots in the early afternoon then becoming variable about 10 knots in the late evening.
Seas
Below 1 metre.
1st Swell
West to southwesterly around 1 metre offshore.
Weather
Mostly sunny. The chance of a thunderstorm east of Barrow Island.
Weather Situation
A trough will persist about the western Pilbara into next week. Tropical Cyclone Narelle will weaken and move west over the Northern Territory, then approach the northeast Kimberley as a deep tropical low early next week, possibly strengthening again over the northern Kimberley waters.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Onslow Temperature Statistics View More

March Temperature

Onslow Airport (3km)

  • Lowest 15 March, 2026

    22.1 °C

  • Average March

    30 °C

  • Highest 1 March, 2026

    40.8 °C

Climate (2021–Present)

Onslow Airport (3km)

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  • Average Low 2021–2026

    20.5 °C

  • Average 2021–2026

    25.8 °C

  • Average High 2021–2026

    32.8 °C
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