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UK Last 24hrs

High Temp
16.7C
Coningsby
 
Low Temp
-2.4C
Altnaharra No 2
 
Precipitation
28mm
St Athan
 
Sunniest
14.4 hours
Kirkwall

© Crown Copyright 2026 Met Office

Cloudbase

Length of Day

15 hrs 50 min 51 sec
of Daylight Today
Which is
2 min 50 sec Longer
Than Yesterday
(Noon)
Day-Night Graphic
(Midnight)

Moon Phase


Links

Weather Underground PWS IESSEXCH11

WXSIM: Chelmer Village
Updated: Monday, 18.05.2026 17:00 UTC
 
Tonight

Chance rain
Chance rain		 Tuesday

Chance rain
Chance rain		 Tuesday
night
Mostly Cloudy
Mostly Cloudy		 Wednesday

Partly Cloudy
Partly Cloudy		 Wednesday
night
Partly Cloudy
Partly Cloudy		 Thursday

Mostly Cloudy
Mostly Cloudy		 Thursday
night
Partly Cloudy
Partly Cloudy		 Friday

Partly Cloudy
Partly Cloudy		 Friday
night
Mostly Cloudy
Mostly Cloudy
<5 mm. 2 mm. <2 mm. <2 mm.
Low: 9° High: 18° Low: 9° High: 19° Low: 11° High: 23° Low: 11° High: 25° Low: 13°



























 

WU Forecast: Chelmsford

Today
AM Light Rain
AM Light Rain		Tonight
Partly Cloudy
Partly Cloudy		Tomorrow
AM Clouds, PM Sun
AM Clouds, PM Sun		Tomorrow night
Partly Cloudy
Partly Cloudy		Thursday
Mostly Cloudy
Mostly Cloudy		Thursday night
Partly Cloudy
Partly Cloudy		Friday
Mostly Sunny
Mostly Sunny		Friday night
Partly Cloudy
Partly Cloudy		Saturday
Partly Cloudy
Partly Cloudy
17°C11°C20°C11°C23°C12°C27°C15°C27°C

WXSIM Forecast Accuracy

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

Morning Forecast

Updated: 05-18-26 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
05-18-26 15   15 11   10 17   18 12   10 19   20 11   11 23   23 13   12
05-17-26 17 17 17 8 6.8 7 15   15 11   9 17   17 12   9 19   20 11   11
05-16-26 15 14.2 14 9 9.9 9 16 17 17 8 6.8 6 16   15 10   8 17   18 12   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   16 10   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
05-07-26 16 13.5 15 7 4.2 7 19 17.1 18 9 6.3 9 21 18.8 19 10 9.2 9 16 12.5 17 5 1.9 5
05-06-26 14 12.9 14 7 7.8 8 17 13.5 15 7 4.2 8 20 17.1 18 10 6.3 8 22 18.8 19 10 9.2 10
05-05-26 17 16.7 17 8 6.5 9 14 12.9 14 6 7.8 9 17 13.5 15 7 4.2 7 20 17.1 17 9 6.3 8
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 9 12 12 7 8 11 9 6 4 8 7 6 4 8 7 5
% Succ 69.2   92.3 92.3   53.8 66.7   91.7 75.0   50.0 36.4   72.7 63.6   54.5 40.0   80.0 70.0   50.0
Ave Error 1.4   0.8 1.1   1.5 1.7   1.0 1.2   1.8 2.2   1.3 1.8   1.7 2.2   1.4 1.6   1.8
Net Error 1.4   0.5 0.6   0.6 1.6   0.8 0.6   0.3 2.0   1.0 1.3   0.3 2.0   0.6 1.3   0.5
Std Dev 1.1   0.9 0.7   1.0 1.0   0.7 0.9   1.5 1.5   1.0 1.5   1.4 1.7   1.0 1.2   1.6