Duncan Weather Forecast

Today 15 Aug
- 8
- 15
Partly cloudy
Sun 16 Aug
- 7
- 13
Partly cloudy
Mon 17 Aug
- 5
- 16
Mostly sunny
Tue 18 Aug
- 10
- 17
Showers
Wed 19 Aug
- 11
- 17
Showers easing
Thu 20 Aug
- 8
- 15
Shower or two
Fri 21 Aug
- 7
- 15
Shower or two

Today 15 Aug
1. 12 am
2. 3 am
3. 6 am
4. 9 am
5. 12 pm
6. 3 pm
7. 6 pm
8. 9 pm
Sun 16 Aug
1. 12 am
2. 3 am
3. 6 am
4. 9 am
5. 12 pm
6. 3 pm
7. 6 pm
8. 9 pm
Mon 17 Aug
1. 12 am
2. 3 am
3. 6 am
4. 9 am
5. 12 pm
6. 3 pm
7. 6 pm
8. 9 pm
Tue 18 Aug
1. 12 am
2. 3 am
3. 6 am
4. 9 am
5. 12 pm
6. 3 pm
7. 6 pm
8. 9 pm
Wed 19 Aug
1. 12 am
2. 3 am
3. 6 am
4. 9 am
5. 12 pm
6. 3 pm
7. 6 pm
8. 9 pm
Thu 20 Aug
1. 12 am
2. 3 am
3. 6 am
4. 9 am
5. 12 pm
6. 3 pm
7. 6 pm
8. 9 pm
Fri 21 Aug
1. 12 am
2. 3 am
3. 6 am
4. 9 am
5. 12 pm
6. 3 pm
7. 6 pm
8. 9 pm

Today 15 Aug Kangaroo Island

Partly cloudy. Slight chance of a shower, becoming less likely later this evening. Winds east to southeasterly 15 to 20 km/h.

Duncan Temperature Statistics View More

August Temperature

Kingscote Airport (35km)

Lowest 17 July, 2026
-1.2 °C
Average 2026
15.3 °C
Highest 7 January, 2026
41.5 °C
Lowest 17 July, 2026
-1.2 °C
Average July
10.3 °C
Highest 14 July, 2026
18 °C
Lowest 1 August, 2026
-0.1 °C
Average August
11.4 °C
Highest 13 August, 2026
18.1 °C

Climate (2021–2026)

Kingscote Airport (35km)

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Average Low 2021–2026
9.3 °C
Average 2021–2026
14.8 °C
Average High 2021–2026
21.1 °C

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