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Day Weather Maximum Day Temperature Minimum Night Temperature Wind Direction and Speed
Saturday

Light Rain Shower

25°C 77°F 16°C 61°F West South Westerly
27km/h 17mph
Sunday

Light Rain Shower

19°C 66°F 10°C 50°F North North Westerly
27km/h 17mph
Monday

Sunny

17°C 63°F 10°C 50°F Northerly
10km/h 6mph
Tuesday

Sunny

19°C 66°F 10°C 50°F Southerly
6km/h 4mph
Wednesday

Sunny

20°C 68°F 11°C 52°F South Easterly
11km/h 7mph

IN ASSOCIATION WITH

Forecast

Sunrise 06:36 Sunset 18:52

Last updated 08:28

Weather forecast details for Saturday 20 September. Each column contains hourly forecast details for weather conditions, temperature, wind speed, wind direction, humidity, visibility and pressure.
Time 1600 hours1900 hours2200 hours0100 hours
Sun
0400 hours0700 hours  
Weather Conditions Heavy Rain Shower Partly Cloudy Light Rain Shower Clear Sky Clear Sky Sunny   
Temperature (°C/°F) 24°C 75°F 22°C 72°F 21°C 70°F 19°C 66°F 19°C 66°F 16°C 61°F   
Wind Speed (mph/km/h) 21km/h 13mph West South Westerly 18km/h 11mph West South Westerly 14km/h 9mph West South Westerly 13km/h 8mph West South Westerly 18km/h 11mph Westerly 21km/h 13mph West North Westerly   
Wind Direction WSW WSW WSW WSW W WNW   
Humidity 75% 82% 91% 90% 89% 84%   
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) G G G G G VG   
Pressure (Millibars) 1009 1009 1009 1008 1008 1010   

Environmental Summary

UV: 4

European range: 1 - 11+

Average Conditions

BBC Weather's average conditions for London, United Kingdom. This includes readings of average sunlight, temperature, discomfort from heat and humidity, relative humidity, average Precipitation, and wet days.
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average Minimum Temperature (°C) -8 -7 -2 4 10 16 19 18 14 8 1 -5
Average Minimum Temperature (°F) 18 20 29 40 50 60 66 65 58 47 34 23
Average Maximum Temperature (°C) <span class="unit-na" title="Not Available">--</span> 1 6 13 18 24 27 26 23 16 8 2
Average Maximum Temperature (°F) 32 34 43 55 65 75 81 79 73 61 47 36
Record Minimum Temperature (°C) -29 -29 -24 -8 -3 2 9 8 -2 -10 -19 -31
Record Minimum Temperature (°F) -20 -21 -12 17 27 35 49 47 29 14 -2 -23
Record Maximum Temperature (°C) 18 20 17 33 37 39 41 39 38 31 26 20
Record Maximum Temperature (°F) 65 68 62 91 98 102 105 102 100 88 78 68
Average Precipitation (mm) 51 51 66 71 86 89 84 81 79 66 61 51
Average Precipitation (inches) 2.0 2.0 2.6 2.8 3.4 3.5 3.3 3.2 3.1 2.6 2.4 2.0
Average Sunlight Hours 4 5 7 7 9 10 10 9 8 7 5 4
Wet Days (+0.1 mm) 11 10 12 11 12 11 9 9 9 9 10 11
Relative Humidity AM 80 79 77 74 73 76 75 79 80 78 79 80
Relative Humidity PM 70 69 64 61 59 61 58 61 59 59 65 72
Discomfort From Heat And Humidity <span class="unit-na" title="Not Available">--</span> <span class="unit-na" title="Not Available">--</span> <span class="unit-na" title="Not Available">--</span> <span class="unit-na" title="Not Available">--</span> <span class="unit-na" title="Not Available">--</span> severity.Moderate severity.Medium severity.Medium <span class="unit-na" title="Not Available">--</span> <span class="unit-na" title="Not Available">--</span> <span class="unit-na" title="Not Available">--</span> <span class="unit-na" title="Not Available">--</span>

Average Conditions data © Copyright RM, 2011. All rights reserved. Helicon Publishing is a division of RM.

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North America Forecast Video

North America Forecast Last updated 20:07, Friday 19 Sep

Observations

Observed at 12:00, Saturday 20 September

Light Cloud

17°C 63°F

23km/h 14mph South Westerly

Humidity: 72%

Visibility: Good

Pressure: 1013mb, Rising

Observation station: Chicago O'Hare, IL.

(Lat: 41.98 | Lon: -87.9)

BBC Weather in association with the Met Office

All times are CDT (America/Chicago, GMT-0500) unless otherwise stated

Information given for most appropriate forecast location. See FAQs for details