Mount Isa Weather Forecast

Today 3 Sep
- 9
- 31
Sunny
Thu 4 Sep
- 11
- 32
Mostly sunny
Fri 5 Sep
- 14
- 33
Sunny
Sat 6 Sep
- 17
- 34
Partly cloudy
Sun 7 Sep
- 18
- 34
Mostly sunny
Mon 8 Sep
- 17
- 34
Sunny
Tue 9 Sep
- 17
- 33
Sunny

Today 3 Sep
1. 1 am
2. 4 am
3. 7 am
4. 10 am
5. 1 pm
6. 4 pm
7. 7 pm
8. 10 pm
Thu 4 Sep
1. 1 am
2. 4 am
3. 7 am
4. 10 am
5. 1 pm
6. 4 pm
7. 7 pm
8. 10 pm
Fri 5 Sep
1. 1 am
2. 4 am
3. 7 am
4. 10 am
5. 1 pm
6. 4 pm
7. 7 pm
8. 10 pm
Sat 6 Sep
1. 1 am
2. 4 am
3. 7 am
4. 10 am
5. 1 pm
6. 4 pm
7. 7 pm
8. 10 pm
Sun 7 Sep
1. 1 am
2. 4 am
3. 7 am
4. 10 am
5. 1 pm
6. 4 pm
7. 7 pm
8. 10 pm
Mon 8 Sep
1. 1 am
2. 4 am
3. 7 am
4. 10 am
5. 1 pm
6. 4 pm
7. 7 pm
8. 10 pm
Tue 9 Sep
1. 1 am
2. 4 am
3. 7 am
4. 10 am
5. 1 pm
6. 4 pm
7. 7 pm
8. 10 pm

Today 3 Sep Mount Isa

Sunny. Light winds becoming southeasterly 15 to 25 km/h in the morning then becoming light in the middle of the day.

Mount Isa Temperature Statistics View More

September Temperature

Mount Isa Airport (5km)

Lowest 9 July, 2025
-1.4 °C
Average 2025
23 °C
Highest 11 January, 2025
44.4 °C
Lowest 4 August, 2025
-0.5 °C
Average August
18.4 °C
Highest 26 August, 2025
35.3 °C
Lowest 2 September, 2025
10.4 °C
Average September
15.9 °C
Highest 1 September, 2025
24.6 °C

Climate (2020–Present)

Mount Isa Airport (5km)

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Average Low 2020–2025
17.3 °C
Average 2020–2025
24.9 °C
Average High 2020–2025
32.8 °C

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