United Kingdom, South East England
Harpenden weather hour by hour, meteograms
- Hourly
- Meteograms
Today
18 April|
Time
|
Temperature
|
Chance of precipitation
|
Precipitation
|
Pressure
|
Humidity
|
Wind
|
|---|---|---|---|---|---|---|
|
00:00
|
+4°
|
40%
|
0.01 mm
|
752 mmHg
|
90% |
6 m/s
|
|
01:00
|
+3°
|
30%
|
0 mm
|
752 mmHg
|
91% |
5 m/s
|
|
02:00
|
+3°
|
20%
|
0 mm
|
753 mmHg
|
93% |
4 m/s
|
|
03:00
|
+2°
|
20%
|
0 mm
|
753 mmHg
|
95% |
3 m/s
|
|
04:00
|
+2°
|
20%
|
0 mm
|
754 mmHg
|
95% |
3 m/s
|
|
05:00
|
+2°
|
20%
|
0 mm
|
754 mmHg
|
95% |
3 m/s
|
|
06:00
|
+2°
|
20%
|
0 mm
|
755 mmHg
|
95% |
2 m/s
|
|
07:00
|
+3°
|
20%
|
0 mm
|
755 mmHg
|
89% |
2 m/s
|
|
08:00
|
+5°
|
20%
|
0 mm
|
755 mmHg
|
83% |
2 m/s
|
|
09:00
|
+7°
|
20%
|
0 mm
|
756 mmHg
|
76% |
2 m/s
|
|
10:00
|
+8°
|
20%
|
0 mm
|
756 mmHg
|
70% |
2 m/s
|
|
11:00
|
+9°
|
20%
|
0 mm
|
756 mmHg
|
63% |
3 m/s
|
|
12:00
|
+10°
|
20%
|
0 mm
|
755 mmHg
|
57% |
3 m/s
|
|
13:00
|
+10°
|
20%
|
0 mm
|
755 mmHg
|
58% |
4 m/s
|
|
14:00
|
+11°
|
20%
|
0 mm
|
755 mmHg
|
58% |
5 m/s
|
|
15:00
|
+11°
|
20%
|
0 mm
|
754 mmHg
|
59% |
5 m/s
|
|
16:00
|
+10°
|
20%
|
0.04 mm
|
754 mmHg
|
63% |
5 m/s
|
|
17:00
|
+9°
|
20%
|
0.04 mm
|
754 mmHg
|
68% |
6 m/s
|
|
18:00
|
+8°
|
20%
|
0.04 mm
|
753 mmHg
|
72% |
6 m/s
|
|
19:00
|
+8°
|
20%
|
0.36 mm
|
753 mmHg
|
77% |
6 m/s
|
|
20:00
|
+8°
|
30%
|
0.36 mm
|
753 mmHg
|
82% |
7 m/s
|
|
21:00
|
+7°
|
30%
|
0.36 mm
|
752 mmHg
|
86% |
7 m/s
|
|
22:00
|
+7°
|
30%
|
0.04 mm
|
752 mmHg
|
87% |
7 m/s
|
|
23:00
|
+8°
|
30%
|
0.04 mm
|
751 mmHg
|
88% |
7 m/s
|
Tomorrow
19 April|
Time
|
Temperature
|
Chance of precipitation
|
Precipitation
|
Pressure
|
Humidity
|
Wind
|
|---|---|---|---|---|---|---|
|
00:00
|
+8°
|
30%
|
0.04 mm
|
751 mmHg
|
89% |
7 m/s
|
|
01:00
|
+8°
|
30%
|
0.06 mm
|
750 mmHg
|
89% |
7 m/s
|
|
02:00
|
+9°
|
30%
|
0.06 mm
|
750 mmHg
|
89% |
7 m/s
|
|
03:00
|
+9°
|
40%
|
0.06 mm
|
750 mmHg
|
89% |
7 m/s
|
|
04:00
|
+8°
|
30%
|
0.06 mm
|
750 mmHg
|
87% |
7 m/s
|
|
05:00
|
+8°
|
30%
|
0.06 mm
|
750 mmHg
|
86% |
7 m/s
|
|
06:00
|
+7°
|
30%
|
0.06 mm
|
750 mmHg
|
85% |
7 m/s
|
|
07:00
|
+8°
|
30%
|
0.06 mm
|
750 mmHg
|
82% |
7 m/s
|
|
08:00
|
+9°
|
20%
|
0.06 mm
|
750 mmHg
|
78% |
8 m/s
|
|
09:00
|
+9°
|
20%
|
0.06 mm
|
750 mmHg
|
74% |
8 m/s
|
|
10:00
|
+10°
|
20%
|
0.17 mm
|
750 mmHg
|
71% |
8 m/s
|
|
11:00
|
+11°
|
20%
|
0.17 mm
|
751 mmHg
|
68% |
8 m/s
|
|
12:00
|
+11°
|
20%
|
0.17 mm
|
751 mmHg
|
65% |
8 m/s
|
|
13:00
|
+11°
|
20%
|
0.11 mm
|
751 mmHg
|
65% |
8 m/s
|
|
14:00
|
+11°
|
30%
|
0.11 mm
|
752 mmHg
|
65% |
7 m/s
|
|
15:00
|
+10°
|
30%
|
0.11 mm
|
752 mmHg
|
66% |
7 m/s
|
|
16:00
|
+10°
|
30%
|
0.03 mm
|
753 mmHg
|
67% |
6 m/s
|
|
17:00
|
+9°
|
30%
|
0.03 mm
|
753 mmHg
|
69% |
5 m/s
|
|
18:00
|
+8°
|
30%
|
0.03 mm
|
754 mmHg
|
70% |
5 m/s
|
|
19:00
|
+7°
|
30%
|
0 mm
|
755 mmHg
|
73% |
4 m/s
|
|
20:00
|
+5°
|
30%
|
0 mm
|
755 mmHg
|
76% |
3 m/s
|
|
21:00
|
+4°
|
40%
|
0 mm
|
756 mmHg
|
79% |
3 m/s
|
|
22:00
|
+4°
|
30%
|
0 mm
|
756 mmHg
|
79% |
3 m/s
|
|
23:00
|
+3°
|
30%
|
0 mm
|
757 mmHg
|
79% |
3 m/s
|
Saturday
20 April|
Time
|
Temperature
|
Chance of precipitation
|
Precipitation
|
Pressure
|
Humidity
|
Wind
|
|---|---|---|---|---|---|---|
|
00:00
|
+3°
|
30%
|
0 mm
|
757 mmHg
|
78% |
3 m/s
|
|
01:00
|
+3°
|
30%
|
0 mm
|
757 mmHg
|
80% |
3 m/s
|
|
02:00
|
+2°
|
20%
|
0 mm
|
757 mmHg
|
81% |
3 m/s
|
|
03:00
|
+2°
|
20%
|
0 mm
|
758 mmHg
|
83% |
3 m/s
|
|
04:00
|
+2°
|
20%
|
0 mm
|
758 mmHg
|
82% |
3 m/s
|
|
05:00
|
+2°
|
20%
|
0 mm
|
759 mmHg
|
82% |
3 m/s
|
|
06:00
|
+2°
|
20%
|
0 mm
|
759 mmHg
|
82% |
4 m/s
|
|
07:00
|
+3°
|
20%
|
0 mm
|
759 mmHg
|
75% |
4 m/s
|
|
08:00
|
+5°
|
20%
|
0 mm
|
759 mmHg
|
68% |
5 m/s
|
|
09:00
|
+7°
|
20%
|
0 mm
|
760 mmHg
|
62% |
6 m/s
|
|
10:00
|
+7°
|
20%
|
0.01 mm
|
760 mmHg
|
59% |
6 m/s
|
|
11:00
|
+8°
|
20%
|
0.01 mm
|
760 mmHg
|
57% |
5 m/s
|
|
12:00
|
+9°
|
20%
|
0.01 mm
|
760 mmHg
|
55% |
5 m/s
|
|
13:00
|
+9°
|
20%
|
0 mm
|
760 mmHg
|
55% |
5 m/s
|
|
14:00
|
+10°
|
20%
|
0 mm
|
760 mmHg
|
55% |
5 m/s
|
|
15:00
|
+10°
|
20%
|
0 mm
|
760 mmHg
|
55% |
6 m/s
|
|
16:00
|
+9°
|
20%
|
0.01 mm
|
760 mmHg
|
60% |
5 m/s
|
|
17:00
|
+8°
|
20%
|
0.01 mm
|
760 mmHg
|
65% |
5 m/s
|
|
18:00
|
+7°
|
20%
|
0.01 mm
|
760 mmHg
|
70% |
4 m/s
|
|
19:00
|
+6°
|
20%
|
0 mm
|
760 mmHg
|
75% |
4 m/s
|
|
20:00
|
+4°
|
20%
|
0 mm
|
761 mmHg
|
80% |
3 m/s
|
|
21:00
|
+3°
|
20%
|
0 mm
|
761 mmHg
|
85% |
2 m/s
|
|
22:00
|
+3°
|
20%
|
0 mm
|
761 mmHg
|
87% |
2 m/s
|
|
23:00
|
+2°
|
20%
|
0 mm
|
761 mmHg
|
88% |
2 m/s
|
Sunday
21 April|
Time
|
Temperature
|
Chance of precipitation
|
Precipitation
|
Pressure
|
Humidity
|
Wind
|
|---|---|---|---|---|---|---|
|
00:00
|
+2°
|
20%
|
0 mm
|
761 mmHg
|
89% |
2 m/s
|
|
01:00
|
+2°
|
20%
|
0 mm
|
761 mmHg
|
87% |
2 m/s
|
|
02:00
|
+3°
|
20%
|
0 mm
|
761 mmHg
|
86% |
2 m/s
|
|
03:00
|
+3°
|
20%
|
0 mm
|
760 mmHg
|
84% |
2 m/s
|
|
04:00
|
+3°
|
20%
|
0 mm
|
760 mmHg
|
84% |
2 m/s
|
|
05:00
|
+4°
|
20%
|
0 mm
|
760 mmHg
|
84% |
3 m/s
|
|
06:00
|
+4°
|
20%
|
0 mm
|
760 mmHg
|
83% |
3 m/s
|
|
07:00
|
+5°
|
20%
|
0.01 mm
|
760 mmHg
|
81% |
3 m/s
|
|
08:00
|
+6°
|
20%
|
0.01 mm
|
760 mmHg
|
79% |
4 m/s
|
|
09:00
|
+6°
|
20%
|
0.01 mm
|
760 mmHg
|
77% |
5 m/s
|
|
10:00
|
+7°
|
20%
|
0.03 mm
|
760 mmHg
|
71% |
5 m/s
|
|
11:00
|
+8°
|
20%
|
0.03 mm
|
760 mmHg
|
64% |
5 m/s
|
|
12:00
|
+9°
|
20%
|
0.03 mm
|
760 mmHg
|
57% |
6 m/s
|
|
13:00
|
+9°
|
20%
|
0 mm
|
760 mmHg
|
56% |
6 m/s
|
|
14:00
|
+9°
|
20%
|
0 mm
|
760 mmHg
|
56% |
6 m/s
|
|
15:00
|
+9°
|
20%
|
0 mm
|
760 mmHg
|
55% |
7 m/s
|
|
16:00
|
+9°
|
20%
|
0.02 mm
|
760 mmHg
|
61% |
6 m/s
|
|
17:00
|
+8°
|
20%
|
0.02 mm
|
760 mmHg
|
67% |
6 m/s
|
|
18:00
|
+7°
|
20%
|
0.02 mm
|
760 mmHg
|
73% |
5 m/s
|
|
19:00
|
+6°
|
20%
|
0 mm
|
760 mmHg
|
77% |
5 m/s
|
|
20:00
|
+4°
|
20%
|
0 mm
|
761 mmHg
|
82% |
5 m/s
|
|
21:00
|
+3°
|
20%
|
0 mm
|
761 mmHg
|
86% |
4 m/s
|
|
22:00
|
+3°
|
20%
|
0 mm
|
761 mmHg
|
88% |
4 m/s
|
|
23:00
|
+2°
|
20%
|
0 mm
|
761 mmHg
|
89% |
4 m/s
|
Forecast in other regions
London
+4°
Birmingham
+1°
Liverpool
+3°
Sheffield
+2°
Glasgow
+3°
Bristol
+2°
Manchester
+2°
Leeds
+2°
Leicester
+2°
Edinburgh
+4°
Cardiff
+3°
Lampeter
+3°
Coventry
+2°
Belfast
+3°
Sunderland
+2°
Nottingham
+2°
Birkenhead
+3°
Reading
+3°
Preston
+2°