Hourly Weather Forecast - Harpenden, Hertfordshire, GB

12 AM
46°F
0%
9mph
SW
Partly Cloudy
Humidity
85%
Feels like
41°F
Dew Point
41°F
1 AM
45°F
0%
9mph
SW
Partly Cloudy
Humidity
87%
Feels like
40°F
Dew Point
41°F
2 AM
44°F
0%
10mph
SW
Partly Cloudy
Humidity
89%
Feels like
39°F
Dew Point
41°F
3 AM
44°F
0%
10mph
SW
Partly Cloudy
Humidity
89%
Feels like
38°F
Dew Point
41°F
4 AM
44°F
0%
11mph
SW
Partly Cloudy
Humidity
89%
Feels like
38°F
Dew Point
41°F
5 AM
44°F
0%
11mph
SW
Mostly Cloudy
Humidity
92%
Feels like
38°F
Dew Point
41°F
5:55 AM
6 AM
45°F
0%
12mph
SW
Cloudy
Humidity
92%
Feels like
39°F
Dew Point
42°F
7 AM
47°F
0%
13mph
SW
Cloudy
Humidity
89%
Feels like
41°F
Dew Point
44°F
8 AM
50°F
0%
13mph
SW
Cloudy
Humidity
84%
Feels like
45°F
Dew Point
45°F
9 AM
53°F
0%
14mph
SW
Mostly Cloudy
Humidity
78%
Feels like
53°F
Dew Point
46°F
10 AM
55°F
0%
15mph
SW
Cloudy
Humidity
74%
Feels like
55°F
Dew Point
47°F
11 AM
58°F
0%
17mph
SW
Cloudy
Humidity
69%
Feels like
58°F
Dew Point
48°F
12 PM
60°F
0%
18mph
SW
Cloudy
Humidity
66%
Feels like
60°F
Dew Point
48°F
1 PM
61°F
0%
18mph
SW
Cloudy
Humidity
64%
Feels like
61°F
Dew Point
49°F
2 PM
60°F
10%
18mph
SW
Cloudy
Humidity
65%
Feels like
60°F
Dew Point
49°F
3 PM
58°F
10%
18mph
SW
Cloudy
Humidity
69%
Feels like
58°F
Dew Point
48°F
4 PM
56°F
20%
18mph
SW
Cloudy
Humidity
74%
Feels like
56°F
Dew Point
48°F
5 PM
53°F
30%
17mph
SW
30% Chance of Light Rain
Humidity
80%
Feels like
53°F
Dew Point
47°F
6 PM
51°F
30%
17mph
SW
30% Chance of Light Rain
Humidity
82%
Feels like
51°F
Dew Point
46°F
6:20 PM
7 PM
50°F
40%
18mph
SW
40% Chance of Light Rain
Humidity
83%
Feels like
50°F
Dew Point
45°F
8 PM
49°F
50%
17mph
WSW
50% Chance of Light Rain
Humidity
82%
Feels like
43°F
Dew Point
44°F
9 PM
48°F
60%
17mph
WSW
60% Chance of Light Rain
Humidity
82%
Feels like
41°F
Dew Point
43°F
10 PM
46°F
60%
17mph
WSW
60% Chance of Light Rain
Humidity
82%
Feels like
40°F
Dew Point
41°F
11 PM
45°F
60%
17mph
W
60% Chance of Light Rain
Humidity
82%
Feels like
38°F
Dew Point
40°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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