Boston Weather Forecast

    • 11
    • 20

    Partly cloudy

    • 12
    • 21

    Possible shower

    • 11
    • 18

    Showers easing

    • 10
    • 18

    Showers

    • 10
    • 19

    Shower or two

    • 12
    • 19

    Possible shower

    • 10
    • 20

    Partly cloudy

Today 22 May Port Lincoln

Partly cloudy. Slight chance of a shower late this afternoon and evening. Light winds becoming northerly 15 to 20 km/h in the morning then becoming light in the late afternoon.

Spencer Gulf Coastal Waters

Wind
Northeasterly 10 to 15 knots turning northerly in the early morning. Winds reaching up to 20 knots south of Port Neill to Port Victoria in the early afternoon.
Seas
Around 1 metre.
1st Swell
South to southwesterly below 1 metre, increasing to around 1 metre south of Cowell to Wallaroo.
Weather
Becoming cloudy.
Weather Situation
A high pressure system over southeastern SA will remain dominant as it slowly moves east and into the Tasman Sea today. A cold front move across across South Australia over the weekend. A low pressure system develops and lingers near the southeast early next week whilst a ridge high pressure builds over the west.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Boston Temperature Statistics View More

May Temperature

Port Lincoln Airport (6km)

  • Lowest 18 May, 2026

    8.6 °C

  • Average May

    15.4 °C

  • Highest 1 May, 2026

    30.6 °C

Climate (2021–Present)

Port Lincoln Airport (6km)

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  • Average Low 2021–2026

    11.5 °C

  • Average 2021–2026

    15.8 °C

  • Average High 2021–2026

    21.3 °C
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