Hourly Weather Forecast - Harpenden, Hertfordshire, GB

12 AM
44°F
0%
5mph
NNW
Partly Cloudy
Humidity
78%
Feels like
41°F
Dew Point
38°F
1 AM
43°F
0%
6mph
NW
Partly Cloudy
Humidity
83%
Feels like
39°F
Dew Point
38°F
2 AM
42°F
0%
6mph
NNW
Partly Cloudy
Humidity
87%
Feels like
38°F
Dew Point
38°F
3 AM
41°F
0%
6mph
NNW
Partly Cloudy
Humidity
89%
Feels like
37°F
Dew Point
38°F
4 AM
41°F
0%
7mph
NNW
Partly Cloudy
Humidity
91%
Feels like
36°F
Dew Point
38°F
5 AM
41°F
0%
6mph
N
Partly Cloudy
Humidity
94%
Feels like
36°F
Dew Point
39°F
5:58 AM
6 AM
42°F
0%
6mph
N
Partly Cloudy
Humidity
94%
Feels like
38°F
Dew Point
40°F
7 AM
44°F
0%
6mph
N
Partly Cloudy
Humidity
90%
Feels like
40°F
Dew Point
41°F
8 AM
47°F
0%
6mph
N
Partly Cloudy
Humidity
84%
Feels like
44°F
Dew Point
42°F
9 AM
50°F
0%
6mph
NNE
Partly Cloudy
Humidity
79%
Feels like
48°F
Dew Point
44°F
10 AM
52°F
0%
4mph
NNE
Partly Cloudy
Humidity
75%
Feels like
52°F
Dew Point
45°F
11 AM
55°F
0%
3mph
ENE
Partly Cloudy
Humidity
70%
Feels like
55°F
Dew Point
46°F
12 PM
57°F
0%
3mph
S
Partly Cloudy
Humidity
66%
Feels like
57°F
Dew Point
46°F
1 PM
59°F
0%
3mph
SSW
Mostly Cloudy
Humidity
62%
Feels like
59°F
Dew Point
46°F
2 PM
60°F
0%
4mph
SW
Mostly Cloudy
Humidity
60%
Feels like
60°F
Dew Point
46°F
3 PM
58°F
0%
6mph
SW
Mostly Cloudy
Humidity
62%
Feels like
58°F
Dew Point
46°F
4 PM
57°F
0%
6mph
SW
Mostly Cloudy
Humidity
65%
Feels like
57°F
Dew Point
45°F
5 PM
55°F
0%
6mph
SW
Cloudy
Humidity
69%
Feels like
55°F
Dew Point
45°F
6 PM
53°F
0%
5mph
WSW
Cloudy
Humidity
72%
Feels like
53°F
Dew Point
44°F
6:19 PM
7 PM
52°F
0%
5mph
WSW
Cloudy
Humidity
74%
Feels like
52°F
Dew Point
44°F
8 PM
51°F
0%
6mph
SW
Cloudy
Humidity
77%
Feels like
51°F
Dew Point
43°F
9 PM
49°F
0%
7mph
SSW
Cloudy
Humidity
79%
Feels like
46°F
Dew Point
43°F
10 PM
48°F
0%
8mph
SW
Mostly Cloudy
Humidity
81%
Feels like
44°F
Dew Point
42°F
11 PM
47°F
0%
9mph
SW
Partly Cloudy
Humidity
83%
Feels like
43°F
Dew Point
42°F

Sunday's High Temperature Outlook

Early Spring Heat Wave Zaps Southwest

Much of the Southwest will observe record-breaking heat through the weekend, with high temperatures reminiscent of mid-summer!

Weekend Weather Outlook

Weekend Weather Outlook

Weekly Drought Map for March 19, 2026

Active Weather, Drought Improvements for Eastern Half; Drying Persists Elsewhere

(Image provided by Pixabay.com)

Lightning Safety

A tree knocked over after a storm produced high winds. (provided by PublicDomainPictures via Pixabay.com)

Strong Winds in the Springtime

Story image: WeatherBug user Pat S. captures a plant blooming in Columbia, Md., on February 24, 2017.

When Does Spring Begin?

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