Hourly Weather Forecast - Harpenden, Hertfordshire, GB

12 AM
44°F
40%
16mph
W
40% Chance of Light Rain
Humidity
81%
Feels like
36°F
Dew Point
38°F
1 AM
42°F
30%
16mph
WNW
30% Chance of Light Rain
Humidity
80%
Feels like
34°F
Dew Point
37°F
2 AM
41°F
20%
16mph
WNW
Partly Cloudy
Humidity
80%
Feels like
33°F
Dew Point
35°F
3 AM
40°F
10%
16mph
W
Mostly Clear
Humidity
78%
Feels like
31°F
Dew Point
33°F
4 AM
39°F
10%
16mph
W
Mostly Clear
Humidity
77%
Feels like
30°F
Dew Point
32°F
5 AM
38°F
10%
15mph
W
Clear
Humidity
78%
Feels like
29°F
Dew Point
32°F
5:53 AM
6 AM
38°F
10%
16mph
W
Sunny
Humidity
77%
Feels like
29°F
Dew Point
32°F
7 AM
40°F
10%
16mph
W
Mostly Sunny
Humidity
74%
Feels like
31°F
Dew Point
32°F
8 AM
42°F
10%
17mph
W
Mostly Sunny
Humidity
68%
Feels like
34°F
Dew Point
33°F
9 AM
45°F
20%
18mph
W
Partly Cloudy
Humidity
63%
Feels like
38°F
Dew Point
33°F
10 AM
47°F
20%
19mph
W
Partly Cloudy
Humidity
58%
Feels like
41°F
Dew Point
34°F
11 AM
49°F
30%
19mph
WNW
30% Chance Rain Showers
Humidity
55%
Feels like
43°F
Dew Point
34°F
12 PM
51°F
40%
19mph
WNW
40% Chance of Light Rain
Humidity
52%
Feels like
51°F
Dew Point
34°F
1 PM
52°F
50%
19mph
WNW
50% Chance of Light Rain
Humidity
51%
Feels like
52°F
Dew Point
34°F
2 PM
51°F
50%
18mph
WNW
50% Chance of Light Rain
Humidity
52%
Feels like
51°F
Dew Point
34°F
3 PM
49°F
40%
17mph
WNW
40% Chance of Light Rain
Humidity
56%
Feels like
43°F
Dew Point
34°F
4 PM
47°F
30%
17mph
WNW
30% Chance Rain Showers
Humidity
59%
Feels like
40°F
Dew Point
33°F
5 PM
44°F
30%
17mph
WNW
30% Chance Rain Showers
Humidity
63%
Feels like
37°F
Dew Point
32°F
6 PM
42°F
30%
15mph
WNW
30% Chance Rain Showers
Humidity
65%
Feels like
35°F
Dew Point
32°F
6:22 PM
7 PM
41°F
10%
14mph
WNW
Partly Cloudy
Humidity
67%
Feels like
34°F
Dew Point
31°F
8 PM
40°F
10%
13mph
WNW
Mostly Clear
Humidity
68%
Feels like
32°F
Dew Point
30°F
9 PM
39°F
10%
13mph
WNW
Mostly Clear
Humidity
70%
Feels like
31°F
Dew Point
30°F
10 PM
38°F
10%
13mph
WNW
Mostly Clear
Humidity
72%
Feels like
30°F
Dew Point
30°F
11 PM
37°F
10%
13mph
NW
Clear
Humidity
73%
Feels like
29°F
Dew Point
29°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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