Hourly Weather Forecast - Harpenden, Hertfordshire, GB

12 AM
38°F
20%
8mph
NW
Clear
Humidity
86%
Feels like
33°F
Dew Point
35°F
2 AM
38°F
10%
8mph
NW
Mostly Clear
Humidity
88%
Feels like
32°F
Dew Point
34°F
3 AM
37°F
10%
8mph
S
Mostly Clear
Humidity
89%
Feels like
31°F
Dew Point
34°F
4 AM
36°F
10%
8mph
S
Partly Cloudy
Humidity
92%
Feels like
30°F
Dew Point
34°F
5 AM
36°F
20%
7mph
S
Partly Cloudy
Humidity
93%
Feels like
30°F
Dew Point
34°F
5:44 AM
6 AM
36°F
20%
8mph
SSE
Partly Cloudy
Humidity
93%
Feels like
30°F
Dew Point
34°F

Today's Severe Weather Outlook

Dangerous Spring Storms Take Aim at Ohio Valley, Mid-Atlantic

Spring is here and Mother Nature is set to bring dangerous thunderstorms to parts of the Great Lakes, Ohio Valley and Mid-Atlantic.

Monday's High Temperature Outlook

Summer-Like Heat Bakes the Southern U.S.

Monday's Weather Outlook

Monday's Weather Outlook

Weekly Drought Map for March 19, 2026

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

Pile of hail after a hail storm hits Perth.

How Does Hail Form?

(Image provided by Pixabay.com)

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