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UK Last 24hrs

High Temp
19C
Wainfleet No 2
 
Low Temp
6C
Baltasound No 2
 
Precipitation
15.6mm
Tulloch Bridge
 
Sunniest
9.7 hours
Valley

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Cloudbase

Length of Day

14 hrs 4 min 56 sec
of Daylight Today
Which is
3 min 49 sec Longer
Than Yesterday
(Noon)
Day-Night Graphic
(Midnight)

Moon Phase


Links

Weather Underground PWS IESSEXCH11

WXSIM: Chelmer Village
Updated: Saturday, 18.04.2026 05:00 UTC
 
Today

Partly Cloudy
Partly Cloudy		 Tonight

Partly Cloudy
Partly Cloudy		 Sunday

Partly Cloudy
Partly Cloudy		 Sunday
night
Partly Cloudy
Partly Cloudy		 Monday

Mostly Cloudy
Mostly Cloudy		 Monday
night
Mostly Cloudy
Mostly Cloudy		 Tuesday

Partly Cloudy
Partly Cloudy		 Tuesday
night
Partly Cloudy
Partly Cloudy		 Wednesday

Partly Cloudy
Partly Cloudy		 Wednesday
night
Fog late
Fog late
<2 mm.
High: 18° Low: 5° High: 16° Low: 4° High: 12° Low: 6° High: 13° Low: 6° High: 16° Low: 4°






























 

WU Forecast: Chelmsford

Today
Partly Cloudy
Partly Cloudy		Tonight
Partly Cloudy
Partly Cloudy		Tomorrow
Partly Cloudy
Partly Cloudy		Tomorrow night
Partly Cloudy
Partly Cloudy		Monday
Mostly Cloudy
Mostly Cloudy		Monday night
Partly Cloudy
Partly Cloudy		Tuesday
Partly Cloudy
Partly Cloudy		Tuesday night
Partly Cloudy
Partly Cloudy		Wednesday
Partly Cloudy
Partly Cloudy
17°C4°C15°C3°C14°C4°C12°C6°C16°C

WXSIM Forecast Accuracy

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

Morning Forecast

Updated: 04-18-26 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
04-18-26 17   18 5   5 16   16 5   4 15   12 5   6 14   13 7   6
04-17-26 18 17.1 19 8 9.9 10 18   16 5   4 16   15 4   4 14   12 5   5
04-16-26 17 17.5 17 9 10.3 11 18 17.1 19 9 9.9 10 18   17 6   5 16   15 5   5
04-15-26 17 16.7 19 9 9.2 10 17 17.5 17 9 10.3 10 18 17.1 18 9 9.9 10 17   16 5   5
04-14-26 16 15.8 16 12 12.3 12 16 16.7 18 9 9.2 10 17 17.5 17 9 10.3 10 18 17.1 17 8 9.9 9
04-13-26 14 13 14 3 3 4 17 15.8 16 12 12.3 6 16 16.7 16 9 9.2 8 17 17.5 16 8 10.3 9
04-12-26 15 14.9 16 3 2.8 7 15 13 14 4 3 5 17 15.8 16 11 12.3 7 17 16.7 16 9 9.2 8
04-11-26 12 12.9 13 7 7.9 7 15 14.9 15 3 2.8 5 15 13 13 4 3 5 17 15.8 16 9 12.3 7
04-10-26 13 12.6 14 9 8.6 9 12 12.9 13 7 7.9 6 15 14.9 14 3 2.8 7 15 13 14 4 3 5
04-09-26 20 21.7 20 5 6.2 5 14 12.6 13 9 8.6 7 12 12.9 13 6 7.9 8 14 14.9 14 5 2.8 6
04-08-26 26 23.4 22 10 9.4 10 19 21.7 19 5 6.2 5 13 12.6 13 9 8.6 7 12 12.9 12 5 7.9 6
04-07-26 21 15.5 18 7 7 7 25 23.4 21 10 9.4 8 19 21.7 21 5 6.2 4 15 12.6 14 9 8.6 7
04-06-26 16 14.2 15 5 6 6 21 15.5 18 8 7 6 25 23.4 20 9 9.4 9 19 21.7 22 6 6.2 9
04-05-26 13 13.4 14 1 2.2 5 16 14.2 15 5 6 6 21 15.5 17 8 7 7 23 23.4 18 9 9.4 7
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 11 11 13 11 10 9 12 10 9 10 11 8 8 9 6 6
% Succ 84.6   84.6 100.0   84.6 83.3   75.0 100.0   83.3 81.8   90.9 100.0   72.7 80.0   90.0 60.0   60.0
Ave Error 1.3   1.2 0.7   1.0 1.6   1.2 0.8   1.6 1.5   0.8 0.9   1.6 1.2   1.2 1.5   2.3
Net Error 0.7   0.6 -0.5   0.6 0.8   0.2 -0.2   -0.7 0.6   -0.3 -0.4   -0.4 0.1   -0.7 -0.8   -0.7
Std Dev 1.4   0.8 0.6   1.1 1.0   1.0 0.5   1.6 1.1   0.6 0.7   1.8 0.9   1.0 1.2   1.9