Slough, United Kingdom Weather

  1. Slough, United Kingdom Weather
  2. Current conditions
  3. Weather forecast
  4. Averages and extremes
  5. Yesterday's Data
  6. Temperature and possibility of rain in Slough over the next 12 hours
  7. Temperature and possibility of rain in Slough in the coming days
  8. Rainfall in Slough in the coming days
  9. Slough Weather Summary
  10. Weather averages by month
  11. Slough's weather
  12. Frequently asked questions
  13. Comments
Slough, Weather
(Photo by Viktor Forgacs on Unsplash)

Current conditions

Updated:
21°C
69.8°F
°C °F

Condition: Overcast

Pressure: 1,019 hPa

Feel like: 22 °C

Temperature: 21°C

Cloud: 99%

Humidity: 64%

Wind: N - 5 km/h

Visibility: 18.92 km

Weather forecast

Sun
21 Jun
19°C / 28°C
Overcast
Mon
22 Jun
20°C / 34°C
Slight Thunderstorm
Tue
23 Jun
24°C / 33°C
Slight Thunderstorm
Wed
24 Jun
21°C / 32°C
Slight Thunderstorm
Thu
25 Jun
24°C / 32°C
Slight Thunderstorm
Hourly forecast today:
21:00 PM
14° / 21°
14° / 21°
Overcast
64% 12 km/h
22:00 PM
14° / 21°
14° / 21°
Overcast
63% 11 km/h
23:00 PM
14° / 20°
14° / 20°
Overcast
71% 10 km/h
00:00 AM
14° / 19°
14° / 19°
Overcast
71% 11 km/h
01:00 AM
14° / 19°
14° / 19°
Overcast
70% 10 km/h
02:00 AM
13° / 18°
13° / 18°
Mainly Clear
73% 14 km/h
03:00 AM
13° / 19°
13° / 19°
Overcast
67% 14 km/h
04:00 AM
13° / 17°
13° / 17°
Overcast
74% 14 km/h
05:00 AM
12° / 18°
12° / 18°
Overcast
70% 13 km/h
06:00 AM
13° / 19°
13° / 19°
Clear Sky
67% 10 km/h
07:00 AM
14° / 21°
14° / 21°
Mainly Clear
64% 16 km/h

30 Day Averages and Extremes

  • Average high 22.0°C
  • Average low 14.23°C
  • Hottest day 34°C (22 June 2026)
  • Coldest day 0°C (03 July 2026)
  • Average humidity 61.7%
  • Days with precipitation 22 days
  • Highest precipitation 69 mm (05 June 2026)

Yesterday's Data

  • Max: 24°C
  • Min: 17°C
  • Total Precipitation: 0 mm

Temperature and possibility of rain in Slough over the next 12 hours

Temperature and possibility of rain in Slough in the coming days

Rainfall in Slough in the coming days

Slough Climate Summary

Slough features a Marine west coast, warm summer (Köppen classification: Cfb), with an average annual temperature of 11.68ºC (53.02ºF), which is about 0.93% higher than the national average for United Kingdom. Annually, the city experiences approximately 46.29 millimeters (1.82 inches) of rainfall, spread across 124.71 rainy days, accounting for 34.17% of the year.

Longitude 51.5105384
Latitude -0.5950406
Yearly high temperature 14.18ºC (57.52ºF)
Yearly low temperature 7.16ºC (44.89ºF)
Hottest month July 22.06ºC (71.71ºF)
Coldest month December 3.35ºC (38.03ºF)
Yearly precip 46.29mm (1.82in)
Days with rainfall 124.71 days (34.17%)
Driest month March (81.61%)
Wettest month June (79.27%)

Weather averages by month

Month High / Low (°C) Rain
January 6.75° / 2.08° 10.36 days
February 7.6° / 2.33° 9.45 days
March 10.49° / 3.25° 8.27 days
April 14.02° / 5.12° 9.0 days
May 16.52° / 7.65° 11.27 days
June 19.5° / 10.6° 13.36 days
July 22.06° / 13.11° 12.55 days
August 21.34° / 13.26° 12.82 days
September 19.05° / 10.95° 7.55 days
October 14.8° / 8.79° 10.36 days
November 10.31° / 5.47° 10.36 days
December 7.73° / 3.35° 9.36 days

Slough's weather

Frequently asked questions

1. What is the hottest month in Slough?

July has the highest average monthly temperature (daily mean of 22.06ºC) and December are the coolest (daily mean of 3.35ºC).

2. What should I wear in Slough today?

For today's very hot weather in Slough, with the high temperatures above 30ºC (86.0ºF), consider wearing:
- Broad-brimmed sun hat
- Airy sandals or flip-flops
- High SPF sunscreen for outdoor activities
- Ultra-thin, breathable socks

Temperature

Early
15°C / 17°C
Morning
14°C / 22°C
Afternoon
16°C / 23°C
Evening
14°C / 21°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 446
  • CO 118
  • NH3 1
  • NO2 13
  • O3 49
  • PM10 6
  • PM25 4
  • SO2 0
  • CH4 1,360

Sunrise / Sunset

03:44
20:22