Cornwall Weather Forecast
- 13
- 22
Showers increasing
- 13
- 24
Shower or two
- 12
- 18
Showers increasing
- 6
- 15
Shower or two
- 6
- 19
Partly cloudy
- 7
- 20
Mostly sunny
- 9
- 19
Cloudy
Today 24 Mar East Coast
Cloudy. Very high chance of showers. The chance of a thunderstorm this afternoon. Light winds. Daytime maximum temperatures between 17 and 22.
Cornwall Temperature Statistics View More
March Temperature
St Helens Aerodrome (27km)
Lowest 13 March, 2026
6.8 °CAverage March
17 °CHighest 20 March, 2026
25.6 °C
Climate (2021–Present)
St Helens Aerodrome (27km)
Average Low 2021–2026
9.3 °CAverage 2021–2026
13.3 °CAverage High 2021–2026
18.2 °C