Hourly Weather Forecast - Harpenden, Hertfordshire, GB

12 AM
42°F
10%
6mph
NE
Cloudy
Humidity
97%
Feels like
38°F
Dew Point
41°F
1 AM
42°F
10%
6mph
NE
Cloudy
Humidity
97%
Feels like
38°F
Dew Point
41°F
2 AM
42°F
10%
6mph
NE
Cloudy
Humidity
97%
Feels like
38°F
Dew Point
41°F
3 AM
41°F
20%
6mph
NE
Cloudy
Humidity
98%
Feels like
37°F
Dew Point
41°F
4 AM
41°F
10%
7mph
NE
Cloudy
Humidity
98%
Feels like
37°F
Dew Point
41°F
5 AM
41°F
10%
7mph
NE
Foggy
Humidity
99%
Feels like
36°F
Dew Point
40°F
6 AM
40°F
10%
7mph
NE
Foggy
Humidity
100%
Feels like
35°F
Dew Point
40°F
7 AM
39°F
10%
7mph
NE
Foggy
Humidity
100%
Feels like
34°F
Dew Point
39°F
8 AM
39°F
10%
8mph
NE
Foggy
Humidity
100%
Feels like
34°F
Dew Point
39°F
8:07 AM
9 AM
40°F
10%
8mph
NE
Foggy
Humidity
100%
Feels like
35°F
Dew Point
40°F
10 AM
42°F
10%
8mph
NE
Cloudy
Humidity
98%
Feels like
36°F
Dew Point
41°F
11 AM
43°F
0%
9mph
NE
Cloudy
Humidity
94%
Feels like
38°F
Dew Point
41°F
12 PM
44°F
0%
9mph
NE
Cloudy
Humidity
91%
Feels like
38°F
Dew Point
41°F
1 PM
44°F
10%
9mph
NE
Cloudy
Humidity
90%
Feels like
38°F
Dew Point
41°F
2 PM
43°F
10%
9mph
NE
Cloudy
Humidity
91%
Feels like
38°F
Dew Point
41°F
3 PM
42°F
10%
9mph
NE
Cloudy
Humidity
91%
Feels like
37°F
Dew Point
40°F
3:53 PM
4 PM
42°F
10%
9mph
NE
Cloudy
Humidity
91%
Feels like
36°F
Dew Point
39°F
5 PM
42°F
10%
9mph
NE
Cloudy
Humidity
90%
Feels like
36°F
Dew Point
39°F
6 PM
41°F
10%
9mph
NE
Mostly Cloudy
Humidity
89%
Feels like
36°F
Dew Point
38°F
7 PM
41°F
20%
9mph
NE
Mostly Cloudy
Humidity
89%
Feels like
35°F
Dew Point
38°F
8 PM
41°F
30%
9mph
NE
30% Chance of Light Rain
Humidity
89%
Feels like
35°F
Dew Point
38°F
9 PM
41°F
20%
10mph
NE
Cloudy
Humidity
89%
Feels like
35°F
Dew Point
38°F
10 PM
41°F
20%
10mph
NE
Mostly Cloudy
Humidity
90%
Feels like
35°F
Dew Point
38°F
11 PM
40°F
10%
10mph
NE
Mostly Cloudy
Humidity
92%
Feels like
34°F
Dew Point
38°F

Forecast Peak Wind Gusts Today

High Winds, Rain, and Snow Cross the Country

A clipper moving over the Great Lakes brings rain, snow, and high winds through the Atlantic Coastline.

Rainfall and Snowfall Totals Through Friday

Atmospheric River Symptoms Repeat in the Northwest

Friday's Weather Outlook

Friday's Weather Outlook

Friday's Weather Outlook

Weekend Weather Preview

Flu Update Valid For Week Ending December 6, 2025

Weekly Flu Update: Flu Exceeds Annual Baseline

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

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