As of 18:22 BST

Weather in Slack

+18°

Slack, Saturday, 8 August, 18:22

Overcast. Feels like 18°C. High 18°C, low 12°C.

Pressure1009 mb

Wind12 mph S

Humidity75%

Visibility6.2 mi

Dew point13°C

Detailed hourly forecast

Sun, 09+9 ° /20 °

+20 °

Slack, Sunday, 9 August

Overcast. High 20°C, low 9°C.

Pressure1009 mb

Wind13 mph W

Humidity47%

Visibility6.2 mi

Dew point6°C

Mon, 10+6 ° /15 °

0.1

+15 °

Slack, Monday, 10 August

Light rain. High 15°C, low 6°C.

Pressure1020 mb

Wind10 mph NW

Humidity51%

Visibility6.2 mi

Dew point5°C

Tue, 11+4 ° /21 °

+21 °

Slack, Tuesday, 11 August

Overcast. High 21°C, low 4°C.

Pressure1024 mb

Wind4 mph S

Humidity51%

Visibility6.2 mi

Dew point7°C

Wed, 12+12 ° /26 °

0.2

+26 °

Slack, Wednesday, 12 August

Light rain. High 26°C, low 12°C.

Pressure1018 mb

Wind11 mph SW

Humidity45%

Visibility6.2 mi

Dew point12°C

Thu, 13+15 ° /21 °

0.2

+21 °

Slack, Thursday, 13 August

Light rain. High 21°C, low 15°C.

Pressure1016 mb

Wind8 mph W

Humidity69%

Visibility—

Dew point14°C

Fri, 14+13 ° /19 °

1.1

+19 °

Slack, Friday, 14 August

Light rain. High 19°C, low 13°C.

Pressure1016 mb

Wind6 mph N

Humidity70%

Visibility—

Dew point12°C

Sat, 15+9 ° /20 °

+20 °

Slack, Saturday, 15 August

Overcast. High 20°C, low 9°C.

Pressure1018 mb

Wind9 mph NE

Humidity47%

Visibility—

Dew point6°C

Sun, 16+10 ° /19 °

3.2

+19 °

Slack, Sunday, 16 August

Light rain. High 19°C, low 10°C.

Pressure1013 mb

Wind8 mph SE

Humidity63%

Visibility—

Dew point11°C

Mon, 17+10 ° /17 °

4.1

+17 °

Slack, Monday, 17 August

Light rain. High 17°C, low 10°C.

Pressure1010 mb

Wind10 mph W

Humidity63%

Visibility—

Dew point9°C

Tue, 18+10 ° /16 °

4.1

+16 °

Slack, Tuesday, 18 August

Light rain. High 16°C, low 10°C.

Pressure1009 mb

Wind6 mph N

Humidity73%

Visibility—

Dew point10°C

Wed, 19+11 ° /16 °

2.7

+16 °

Slack, Wednesday, 19 August

Light rain. High 16°C, low 11°C.

Pressure1012 mb

Wind5 mph E

Humidity85%

Visibility—

Dew point11°C

Thu, 20+9 ° /12 °

36.2

+12 °

Slack, Thursday, 20 August

Heavy rain. High 12°C, low 9°C.

Pressure1001 mb

Wind14 mph NW

Humidity98%

Visibility—

Dew point11°C

Fri, 21+8 ° /14 °

19.3

+14 °

Slack, Friday, 21 August

Rain. High 14°C, low 8°C.

Pressure1007 mb

Wind15 mph NW

Humidity62%

Visibility—

Dew point5°C

Sat, 22+7 ° /13 °

2.5

+13 °

Slack, Saturday, 22 August

Light rain. High 13°C, low 7°C.

Pressure1005 mb

Wind13 mph NW

Humidity69%

Visibility—

Dew point6°C

Sun, 23+8 ° /13 °

+13 °

Slack, Sunday, 23 August

Light rain. High 13°C, low 8°C.

Pressure1017 mb

Wind12 mph W

Humidity66%

Visibility—

Dew point6°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 Slack 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 Slack 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.