Cornwall Weather Forecast

Today 18 Oct
- 8
- 22
Clear
Mon 19 Oct
- 9
- 23
Cloud clearing
Tue 20 Oct
- 11
- 25
Partly cloudy
Wed 21 Oct
- 13
- 25
Possible shower
Thu 22 Oct
- 12
- 25
Partly cloudy
Fri 23 Oct
- 12
- 27
Shower or two
Sat 24 Oct
- 11
- 22
Shower or two

Today 18 Oct
1. 2 am
2. 5 am
3. 8 am
4. 11 am
5. 2 pm
6. 5 pm
7. 8 pm
8. 11 pm
Mon 19 Oct
1. 2 am
2. 5 am
3. 8 am
4. 11 am
5. 2 pm
6. 5 pm
7. 8 pm
8. 11 pm
Tue 20 Oct
1. 2 am
2. 5 am
3. 8 am
4. 11 am
5. 2 pm
6. 5 pm
7. 8 pm
8. 11 pm
Wed 21 Oct
1. 2 am
2. 5 am
3. 8 am
4. 11 am
5. 2 pm
6. 5 pm
7. 8 pm
8. 11 pm
Thu 22 Oct
1. 2 am
2. 5 am
3. 8 am
4. 11 am
5. 2 pm
6. 5 pm
7. 8 pm
8. 11 pm
Fri 23 Oct
1. 2 am
2. 5 am
3. 8 am
4. 11 am
5. 2 pm
6. 5 pm
7. 8 pm
8. 11 pm
Sat 24 Oct
1. 2 am
2. 5 am
3. 8 am
4. 11 am
5. 2 pm
6. 5 pm
7. 8 pm
8. 11 pm

Today 18 Oct East Coast

Sunny. Winds northwest to northeasterly 20 to 30 km/h becoming light in the late evening. Daytime maximum temperatures 20 to 25.

Cornwall Temperature Statistics View More

October Temperature

St Helens Aerodrome (27 km)

Lowest 30 July, 2026
0.9 °C
Average 2026
13.6 °C
Highest 7 January, 2026
33.6 °C
Lowest 22 September, 2026
1.7 °C
Average September
12.4 °C
Highest 30 September, 2026
23.8 °C
Lowest 15 October, 2026
5.5 °C
Average October
13.3 °C
Highest 1 October, 2026
22.4 °C

Climate (2021–2026)

St Helens Aerodrome (27 km)

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Average Low 2021–2026
9.4 °C
Average 2021–2026
13.5 °C
Average High 2021–2026
18.4 °C

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