American River Weather Forecast

    • 10
    • 16

    Cloudy

    • 10
    • 15

    Partly cloudy

    • 8
    • 15

    Becoming cloudy

    • 11
    • 14

    Cloudy

    • 10
    • 15

    Cloud clearing

    • 10
    • 17

    Sunny

    • 10
    • 19

    Partly cloudy

Today 6 Sep Kangaroo Island

Cloudy. Slight chance of a shower, becoming less likely later this evening. Winds west to southwesterly 15 to 20 km/h becoming light in the late afternoon then becoming southwesterly 15 to 20 km/h in the late evening.

Investigator Strait Coastal Waters

Wind
West to southwesterly 10 to 15 knots tending south to southwesterly in the evening.
Seas
Below 1 metre.
1st Swell
West to southwesterly 1 to 2 metres.
Weather
Partly cloudy.
Weather Situation
A high pressure system centred over SA will weaken during Sunday. The tail end of a cold front will move across southern coasts early Monday then a high pressure system centred southwest of WA will extend a ridge across the south of SA. The main high centre will move to the east of SA late Thursday and Friday. A trough over the interior of WA will remain stationary for most of the week.
Graph Plots Open in Graphs
  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

American River Temperature Statistics View More

September Temperature

Kingscote Airport (24km)

  • Lowest 2 September, 2026

    5.6 °C
  • Average September

    13.8 °C
  • Highest 1 September, 2026

    21.3 °C

Climate (2021–2026)

Kingscote Airport (24km)

Take a look at our website widgetsAvailable free! Find Out More
  • Average Low 2021–2026

    9.3 °C
  • Average 2021–2026

    14.8 °C
  • Average High 2021–2026

    21.1 °C
Get WillyWeather+ to remove ads