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UK Last 24hrs

High Temp
21.8C
Heathrow
 
Low Temp
7.7C
Fyvie Castle
 
Precipitation
12.2mm
Shap
 
Sunniest
8.7 hours
Tiree

© Crown Copyright 2026 Met Office

Cloudbase

Length of Day

15 hrs 56 min 19 sec
of Daylight Today
Which is
2 min 42 sec Longer
Than Yesterday
(Noon)
Day-Night Graphic
(Midnight)

Moon Phase


Links

Weather Underground PWS IESSEXCH11

WXSIM: Chelmer Village
Updated: Thursday, 21.05.2026 11:00 UTC
 
This
afternoon
Mostly Cloudy
Mostly Cloudy		 Tonight

Mostly Cloudy
Mostly Cloudy		 Friday

Mostly Sunny
Mostly Sunny		 Friday
night
Mostly Cloudy
Mostly Cloudy		 Saturday

Partly Cloudy
Partly Cloudy		 Saturday
night
Partly Cloudy
Partly Cloudy		 Sunday

Mostly Sunny
Mostly Sunny		 Sunday
night
Fog late
Fog late		 Monday

Sunny
Sunny		 Monday
night
Light Fog
Light Fog
<2 mm.
High: 22° Low: 12° High: 26° Low: 14° High: 28° Low: 15° High: 26° Low: 15° High: 28° Low: 15°






























 

WU Forecast: Chelmsford

Today
Partly Cloudy
Partly Cloudy		Tonight
Partly Cloudy
Partly Cloudy		Tomorrow
Sunny
Sunny		Tomorrow night
Mostly Cloudy
Mostly Cloudy		Saturday
Mostly Sunny
Mostly Sunny		Saturday night
Mostly Clear
Mostly Clear		Sunday
Sunny
Sunny		Sunday night
Clear
Clear		Monday
Sunny
Sunny
23°C12°C27°C15°C29°C13°C30°C14°C31°C

WXSIM Forecast Accuracy

Actual Observed (Act), WxSim Generated (WS) , Weather Underground (WU)

Morning Forecast

Updated: 05-21-26 at 9:20 am
Goal Forecast Day Day +1 Day +2 Day +3
± 2.0° C High Low High Low High Low High Low
Date WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS
05-21-26 24   23 13   12 28   26 16   14 30   27 16   15 31   25 16   13
05-20-26 20 19.9 20 11 11.1 11 24   23 13   12 28   25 16   13 30   26 16   13
05-19-26 18 18.6 19 12 10.5 12 20 19.9 20 11 11.1 11 23   23 13   12 27   26 16   14
05-18-26 15 14.6 15 11 10.5 10 17 18.6 18 12 10.5 10 19 19.9 20 11 11.1 11 23   23 13   12
05-17-26 17 17 17 8 6.8 7 15 14.6 15 11 10.5 9 17 18.6 17 12 10.5 9 19 19.9 20 11 11.1 11
05-16-26 15 14.2 14 9 9.9 9 16 17 17 8 6.8 6 16 14.6 15 10 10.5 8 17 18.6 18 12 10.5 9
05-15-26 14 14.1 13 4 5.1 6 15 14.2 15 10 9.9 6 16 17 15 8 6.8 8 15 14.6 16 10 10.5 9
05-14-26 12 11.8 12 5 5.5 6 15 14.1 13 4 5.1 5 15 14.2 15 9 9.9 6 16 17 15 8 6.8 9
05-13-26 14 12.6 13 6 5.2 6 13 11.8 14 5 5.5 5 14 14.1 14 4 5.1 5 15 14.2 15 9 9.9 6
05-12-26 17 15.2 15 8 7.5 5 13 12.6 14 6 5.2 5 14 11.8 14 5 5.5 5 14 14.1 12 5 5.1 5
05-11-26 14 11.7 13 2 0.9 3 17 15.2 16 7 7.5 4 14 12.6 14 6 5.2 5 13 11.8 13 5 5.5 6
05-10-26 15 12.5 16 3 1.9 4 14 11.7 12 2 0.9 4 18 15.2 16 8 7.5 5 15 12.6 14 6 5.2 5
05-09-26 22 18.8 18 9 9.2 7 15 12.5 14 4 1.9 4 15 11.7 14 6 0.9 4 18 15.2 16 8 7.5 5
05-08-26 19 17.1 17 8 6.3 8 22 18.8 19 9 9.2 9 16 12.5 15 4 1.9 4 16 11.7 13 6 0.9 4
Results WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS WU Act WS
# Succ 10 12 13 9 9 11 11 8 7 8 9 6 7 9 9 6
% Succ 76.9   92.3 100.0   69.2 75.0   91.7 91.7   66.7 63.6   72.7 81.8   54.5 70.0   90.0 90.0   60.0
Ave Error 1.2   0.7 0.9   1.2 1.4   0.8 0.8   1.4 1.7   1.3 1.3   1.6 1.6   1.2 1.1   1.6
Net Error 1.1   0.3 0.4   0.3 0.9   0.5 0.4   -0.5 1.1   0.6 0.7   -0.4 0.8   0.2 0.7   -0.4
Std Dev 1.1   0.9 0.5   0.9 0.9   0.7 0.5   1.4 1.1   1.0 0.9   1.4 1.2   0.9 0.9   1.4