As of 16:48 BST

Weather in Slack

+25°

Slack, Saturday, 8 August, 16:48

Overcast. Feels like 25°C. High 25°C, low 9°C.

Pressure1015 mb

Wind13 mph W

Humidity59%

Visibility6.2 mi

Dew point16°C

Detailed hourly forecast

Sun, 09+10 ° /22 °

+22 °

Slack, Sunday, 9 August

Overcast. High 22°C, low 10°C.

Pressure1014 mb

Wind12 mph W

Humidity57%

Visibility6.2 mi

Dew point11°C

Mon, 10+8 ° /19 °

0.1

+19 °

Slack, Monday, 10 August

Light rain. High 19°C, low 8°C.

Pressure1021 mb

Wind11 mph NW

Humidity43%

Visibility6.2 mi

Dew point6°C

Tue, 11+9 ° /25 °

+25 °

Slack, Tuesday, 11 August

Clear sky. High 25°C, low 9°C.

Pressure1025 mb

Wind8 mph S

Humidity40%

Visibility6.2 mi

Dew point8°C

Wed, 12+13 ° /29 °

+29 °

Slack, Wednesday, 12 August

Overcast. High 29°C, low 13°C.

Pressure1023 mb

Wind11 mph S

Humidity29%

Visibility6.2 mi

Dew point6°C

Thu, 13+17 ° /31 °

+31 °

Slack, Thursday, 13 August

Clear sky. High 31°C, low 17°C.

Pressure1018 mb

Wind12 mph NW

Humidity18%

Visibility—

Dew point1°C

Fri, 14+14 ° /25 °

0.9

+25 °

Slack, Friday, 14 August

Light rain. High 25°C, low 14°C.

Pressure1016 mb

Wind14 mph W

Humidity56%

Visibility—

Dew point14°C

Sat, 15+12 ° /22 °

+22 °

Slack, Saturday, 15 August

Overcast. High 22°C, low 12°C.

Pressure1018 mb

Wind9 mph W

Humidity76%

Visibility—

Dew point13°C

Sun, 16+14 ° /17 °

+17 °

Slack, Sunday, 16 August

Light rain. High 17°C, low 14°C.

Pressure1014 mb

Wind6 mph NW

Humidity79%

Visibility—

Dew point13°C

Mon, 17+10 ° /18 °

0.8

+18 °

Slack, Monday, 17 August

Light rain. High 18°C, low 10°C.

Pressure1011 mb

Wind19 mph W

Humidity64%

Visibility—

Dew point11°C

Tue, 18+9 ° /18 °

1.7

+18 °

Slack, Tuesday, 18 August

Light rain. High 18°C, low 9°C.

Pressure1009 mb

Wind16 mph W

Humidity53%

Visibility—

Dew point7°C

Wed, 19+9 ° /20 °

+20 °

Slack, Wednesday, 19 August

Overcast. High 20°C, low 9°C.

Pressure1012 mb

Wind11 mph W

Humidity46%

Visibility—

Dew point7°C

Thu, 20+11 ° /16 °

1.3

+16 °

Slack, Thursday, 20 August

Light rain. High 16°C, low 11°C.

Pressure1004 mb

Wind20 mph W

Humidity90%

Visibility—

Dew point12°C

Fri, 21+11 ° /16 °

1.5

+16 °

Slack, Friday, 21 August

Light rain. High 16°C, low 11°C.

Pressure1011 mb

Wind22 mph W

Humidity48%

Visibility—

Dew point4°C

Sat, 22+10 ° /13 °

7.9

+13 °

Slack, Saturday, 22 August

Light rain. High 13°C, low 10°C.

Pressure1010 mb

Wind25 mph W

Humidity71%

Visibility—

Dew point8°C

Sun, 23+8 ° /16 °

+16 °

Slack, Sunday, 23 August

Overcast. High 16°C, low 8°C.

Pressure1020 mb

Wind18 mph NW

Humidity50%

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 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.