Boston Weather Forecast

    • 10
    • 17

    Showers

    • 11
    • 18

    Showers

    • 11
    • 19

    Shower or two

    • 11
    • 19

    Possible shower

    • 11
    • 20

    Shower or two

    • 11
    • 19

    Shower or two

    • 10
    • 20

    Shower or two

Today 25 May Port Lincoln

Partly cloudy. High chance of showers. The chance of a thunderstorm during the morning and afternoon. Winds southwesterly 20 to 30 km/h becoming light in the early morning then becoming southerly 20 to 30 km/h in the morning.

Spencer Gulf Coastal Waters

Wind
North to northwesterly 15 to 20 knots, reaching up to 30 knots south of Cowell to Wallaroo early in the morning. Winds tending northwest to southwesterly in the morning.
Seas
1.5 to 2.5 metres, decreasing to 1 to 1.5 metres during the afternoon.
1st Swell
South to southwesterly below 1 metre, increasing to 1 to 1.5 metres south of Cowell to Wallaroo.
Weather
Partly cloudy. 90% chance of showers. The chance of a thunderstorm south of Cowell to Wallaroo during the morning and afternoon.
Weather Situation
A cold front with an embedded low pressure system lies west of Kangaroo Island. The low is expected to move north and over the Eyre Peninsula today, weakening as it moves into NSW on Tuesday. A weak ridge of high pressure begins to move across SA later in the week.
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  • Temperature Forecast Bureau of Meteorology

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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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