Boston Weather Forecast
- 13
- 23
Showers
- 13
- 21
Showers easing
- 8
- 18
Possible shower
- 9
- 17
Partly cloudy
- 9
- 18
Partly cloudy
- 9
- 21
Mostly sunny
- 9
- 17
Partly cloudy
Today 30 Sep Port Lincoln
Cloudy. Very high chance of showers, becoming less likely in the late morning. The chance of a thunderstorm this evening. Light winds becoming west to northwesterly 15 to 20 km/h in the morning then becoming light in the early afternoon.
Spencer Gulf Coastal Waters
- Wind
- Northwest to southwesterly 10 to 15 knots becoming variable about 10 knots in the early morning.
- 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
- Partly cloudy. 80% chance of showers south of Port Neill to Port Victoria, 50% chance elsewhere. The chance of a thunderstorm during this afternoon and evening.
- Weather Situation
- A series of slow moving troughs will move across the state today and Thursday as a couple of cold fronts move across waters to the south. A high pressure system will become established south of the Bight during Friday and persist there on Saturday. A trough will extend from WA over the far west of SA over the weekend.
Boston Temperature Statistics View More
September Temperature
Port Lincoln Airport (6km)
Lowest 18 September, 2026
3.3 °CAverage September
14.7 °CHighest 24 September, 2026
30.8 °C
Climate (2021–2026)
Port Lincoln Airport (6km)
Average Low 2021–2026
11.5 °CAverage 2021–2026
15.9 °CAverage High 2021–2026
21.3 °C