Boston Weather Forecast

    • 17
    • 27

    Possible shower

    • 20
    • 25

    Shower or two

    • 15
    • 23

    Partly cloudy

    • 15
    • 24

    Mostly sunny

    • 16
    • 23

    Wind easing. Partly cloudy

    • 17
    • 24

    Partly cloudy

    • 18
    • 27

    Cloud clearing

Today 21 Feb Port Lincoln

Cloudy. Medium chance of showers, most likely later this evening. Light winds.

Spencer Gulf Coastal Waters

Wind
Southeast to southwesterly 10 to 15 knots tending north to northwesterly in the evening.
Seas
Below 1 metre.
1st Swell
South to southwesterly below 1 metre, increasing to 1 to 1.5 metres south of Cowell to Wallaroo.
Weather
Cloudy.
Weather Situation
A weak ridge of high pressure across the south of SA will weaken further during Saturday as a trough and cold front cross the Bight. The trough and cold front will move across the south on Sunday. A tropical low pressure system centred over the southeast of the NT extends a trough into the northeast of SA. The low and trough are expected to remain slow-moving next week and another ridge will extend across waters to the south of SA.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Boston Temperature Statistics View More

February Temperature

Port Lincoln Airport (6km)

  • Lowest 4 February, 2026

    10.6 °C

  • Average February

    20.1 °C

  • Highest 16 February, 2026

    34.5 °C

Climate (2021–Present)

Port Lincoln Airport (6km)

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  • Average Low 2021–2026

    11.4 °C

  • Average 2021–2026

    15.8 °C

  • Average High 2021–2026

    21.3 °C
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