Portland Airport Weather Forecast

Today 14 Sep
- 11
- 16
Showers increasing
Tue 15 Sep
- 8
- 13
Shower or two
Wed 16 Sep
- 8
- 13
Cloudy
Thu 17 Sep
- 7
- 14
Cloudy
Fri 18 Sep
- 5
- 20
Sunny
Sat 19 Sep
- 11
- 23
Sunny
Sun 20 Sep
- 11
- 17
Shower or two

Today 14 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 15 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
Wed 16 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 17 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 18 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 19 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 20 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 14 Sep South West

Cloudy. Very high chance of showers in the south, medium chance elsewhere. Winds westerly 15 to 25 km/h. Daytime maximum temperatures around 17.

Portland Airport Temperature Statistics View More

September Temperature

Portland Airport (0km)

Lowest 8 July, 2026
0.5 °C
Average 2026
13.6 °C
Highest 24 January, 2026
39.3 °C
Lowest 2 August, 2026
2.2 °C
Average August
10.7 °C
Highest 31 August, 2026
19.1 °C
Lowest 8 September, 2026
2.1 °C
Average September
11.7 °C
Highest 12 September, 2026
21.9 °C

Climate (2021–2026)

Portland Airport (0km)

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Average Low 2021–2026
9.7 °C
Average 2021–2026
13.5 °C
Average High 2021–2026
18.2 °C

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