Boston Weather Forecast
- 9
- 18
Rain
- 13
- 19
Rain
- 13
- 18
Rain
- 8
- 16
Showers increasing
- 9
- 16
Showers
- 8
- 15
Shower or two
- 8
- 16
Possible shower
Today 15 Jun Port Lincoln
Cloudy. Very high chance of rain. Winds northerly 15 to 25 km/h.
Spencer Gulf Coastal Waters
- Wind
- North to northeasterly 15 to 20 knots.
- Seas
- Below 1 metre, increasing to 1 to 1.5 metres south of Cowell to Wallaroo.
- 1st Swell
- South to southwesterly around 1 metre.
- Weather
- Cloudy. 95% chance of rain.
- Weather Situation
- A high pressure system centred over the Tasman Sea extends a ridge over the northeast of SA. A low pressure system will develop over the Bight on Monday then will remain slow-moving until later Thursday when it will move eastwards. An associated cold front will move across SA during Wednesday followed by a second front later Thursday. A high pressure ridge will move across from the west over the weekend.
Boston Temperature Statistics View More
June Temperature
Port Lincoln Airport (6km)
Lowest 11 June, 2026
5.9 °CAverage June
13.3 °CHighest 12 June, 2026
23.5 °C
Climate (2021–Present)
Port Lincoln Airport (6km)
Average Low 2021–2026
11.5 °CAverage 2021–2026
15.8 °CAverage High 2021–2026
21.3 °C