Grinstead Hill, Saturday, 8 August, 18:34
Overcast. Feels like 23°C. High 27°C, low 11°C.
Grinstead Hill, Sunday, 9 August
Overcast. High 33°C, low 14°C.
Grinstead Hill, Monday, 10 August
Overcast. High 26°C, low 14°C.
Grinstead Hill, Tuesday, 11 August
Clear sky. High 23°C, low 13°C.
Grinstead Hill, Wednesday, 12 August
Clear sky. High 27°C, low 14°C.
Grinstead Hill, Thursday, 13 August
Clear sky. High 33°C, low 16°C.
Grinstead Hill, Friday, 14 August
Overcast. High 33°C, low 21°C.
Grinstead Hill, Saturday, 15 August
Overcast. High 26°C, low 16°C.
Grinstead Hill, Sunday, 16 August
Light rain. High 26°C, low 15°C.
Grinstead Hill, Monday, 17 August
Light rain. High 23°C, low 15°C.
Grinstead Hill, Tuesday, 18 August
Mainly clear. High 23°C, low 12°C.
Grinstead Hill, Wednesday, 19 August
Overcast. High 23°C, low 12°C.
Grinstead Hill, Thursday, 20 August
Light rain. High 21°C, low 14°C.
Grinstead Hill, Friday, 21 August
Partly cloudy. High 21°C, low 11°C.
Grinstead Hill, Saturday, 22 August
Light rain. High 20°C, low 12°C.
Grinstead Hill, Sunday, 23 August
Overcast. High 19°C, low 12°C.
The first 16 days come from weather models — highly reliable for the first 3–5 days, gradually less so after that. Days 17 to 30 for Grinstead Hill are built from climate averages over the last 60 years, so they show typical weather for those dates rather than a specific forecast.
We compare the forecast with the climate average for exactly the same calendar days, calculated from 60 years of observations. The difference shows how the coming month compares with a typical one.
These are real historical extremes recorded in Grinstead Hill since 1960: the highest and lowest temperature for each calendar date, with the year it happened.
The forecast portion refreshes every hour. The climate portion is based on long-term data and stays stable.