As of 17:02 BST

Weather in Keston Mark

+28°

Keston Mark, Saturday, 8 August, 17:02

Overcast. Feels like 27°C. High 28°C, low 11°C.

Pressure1017 mb

Wind1 mph SE

Humidity30%

Visibility6.2 mi

Dew point8°C

Detailed hourly forecast

Sun, 09+15 ° /32 °

+32 °

Keston Mark, Sunday, 9 August

Overcast. High 32°C, low 15°C.

Pressure1013 mb

Wind4 mph N

Humidity20%

Visibility6.2 mi

Dew point3°C

Mon, 10+15 ° /26 °

+26 °

Keston Mark, Monday, 10 August

Overcast. High 26°C, low 15°C.

Pressure1019 mb

Wind8 mph NW

Humidity42%

Visibility6.2 mi

Dew point11°C

Tue, 11+15 ° /25 °

+25 °

Keston Mark, Tuesday, 11 August

Mainly clear. High 25°C, low 15°C.

Pressure1025 mb

Wind11 mph E

Humidity36%

Visibility6.2 mi

Dew point8°C

Wed, 12+16 ° /29 °

+29 °

Keston Mark, Wednesday, 12 August

Clear sky. High 29°C, low 16°C.

Pressure1023 mb

Wind9 mph E

Humidity21%

Visibility6.2 mi

Dew point3°C

Thu, 13+18 ° /36 °

+36 °

Keston Mark, Thursday, 13 August

Clear sky. High 36°C, low 18°C.

Pressure1018 mb

Wind7 mph SE

Humidity13%

Visibility—

Dew point1°C

Fri, 14+22 ° /32 °

+32 °

Keston Mark, Friday, 14 August

Overcast. High 32°C, low 22°C.

Pressure1015 mb

Wind9 mph NW

Humidity31%

Visibility—

Dew point10°C

Sat, 15+19 ° /28 °

+28 °

Keston Mark, Saturday, 15 August

Overcast. High 28°C, low 19°C.

Pressure1015 mb

Wind13 mph E

Humidity42%

Visibility—

Dew point13°C

Sun, 16+17 ° /27 °

+27 °

Keston Mark, Sunday, 16 August

Overcast. High 27°C, low 17°C.

Pressure1013 mb

Wind10 mph W

Humidity42%

Visibility—

Dew point12°C

Mon, 17+18 ° /25 °

+25 °

Keston Mark, Monday, 17 August

Overcast. High 25°C, low 18°C.

Pressure1010 mb

Wind12 mph NW

Humidity47%

Visibility—

Dew point10°C

Tue, 18+15 ° /24 °

+24 °

Keston Mark, Tuesday, 18 August

Mainly clear. High 24°C, low 15°C.

Pressure1009 mb

Wind12 mph N

Humidity40%

Visibility—

Dew point7°C

Wed, 19+14 ° /24 °

+24 °

Keston Mark, Wednesday, 19 August

Partly cloudy. High 24°C, low 14°C.

Pressure1012 mb

Wind11 mph N

Humidity37%

Visibility—

Dew point6°C

Thu, 20+16 ° /23 °

2.2

+23 °

Keston Mark, Thursday, 20 August

Light rain. High 23°C, low 16°C.

Pressure1007 mb

Wind12 mph SW

Humidity93%

Visibility—

Dew point16°C

Fri, 21+13 ° /23 °

+23 °

Keston Mark, Friday, 21 August

Partly cloudy. High 23°C, low 13°C.

Pressure1013 mb

Wind13 mph NW

Humidity44%

Visibility—

Dew point6°C

Sat, 22+13 ° /20 °

+20 °

Keston Mark, Saturday, 22 August

Overcast. High 20°C, low 13°C.

Pressure1014 mb

Wind16 mph W

Humidity53%

Visibility—

Dew point9°C

Sun, 23+13 ° /23 °

+23 °

Keston Mark, Sunday, 23 August

Overcast. High 23°C, low 13°C.

Pressure1020 mb

Wind13 mph NW

Humidity40%

Visibility—

Dew point4°C

Questions about the month ahead

How accurate is a month-long forecast?

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 Keston Mark are built from climate averages over the last 60 years, so they show typical weather for those dates rather than a specific forecast.

What does "above average" mean?

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.

Where do the 66-year records come from?

These are real historical extremes recorded in Keston Mark since 1960: the highest and lowest temperature for each calendar date, with the year it happened.

How often is the 30-day forecast updated?

The forecast portion refreshes every hour. The climate portion is based on long-term data and stays stable.