Hourly Weather Forecast - Letchworth, Hertfordshire, GB

12 AM
41°F
10%
5mph
SE
Cloudy
Humidity
98%
Feels like
38°F
Dew Point
41°F
1 AM
41°F
10%
5mph
SE
Cloudy
Humidity
98%
Feels like
38°F
Dew Point
41°F
2 AM
42°F
10%
5mph
SE
Cloudy
Humidity
98%
Feels like
38°F
Dew Point
41°F
3 AM
42°F
20%
5mph
SE
Cloudy
Humidity
98%
Feels like
38°F
Dew Point
41°F
4 AM
42°F
20%
5mph
ESE
Cloudy
Humidity
98%
Feels like
39°F
Dew Point
42°F
5 AM
43°F
20%
5mph
ESE
Cloudy
Humidity
98%
Feels like
39°F
Dew Point
42°F
6 AM
43°F
20%
5mph
ESE
Foggy
Humidity
99%
Feels like
40°F
Dew Point
43°F
7 AM
44°F
30%
5mph
ESE
30% Chance of Light Rain
Humidity
98%
Feels like
41°F
Dew Point
44°F
8 AM
45°F
20%
4mph
ESE
Cloudy
Humidity
97%
Feels like
43°F
Dew Point
44°F
8:06 AM
9 AM
46°F
20%
4mph
ESE
Cloudy
Humidity
96%
Feels like
45°F
Dew Point
45°F
10 AM
48°F
20%
4mph
ESE
Cloudy
Humidity
95%
Feels like
46°F
Dew Point
46°F
11 AM
49°F
20%
5mph
ESE
Mostly Cloudy
Humidity
92%
Feels like
47°F
Dew Point
47°F
12 PM
50°F
30%
5mph
ESE
30% Chance of Light Rain
Humidity
89%
Feels like
48°F
Dew Point
47°F
1 PM
50°F
30%
5mph
E
30% Chance of Light Rain
Humidity
89%
Feels like
50°F
Dew Point
47°F
2 PM
49°F
20%
6mph
E
Cloudy
Humidity
90%
Feels like
47°F
Dew Point
47°F
3 PM
49°F
30%
6mph
E
30% Chance of Light Rain
Humidity
93%
Feels like
46°F
Dew Point
47°F
3:51 PM
4 PM
48°F
20%
6mph
ESE
Cloudy
Humidity
94%
Feels like
45°F
Dew Point
46°F
5 PM
48°F
40%
6mph
ESE
40% Chance of Light Rain
Humidity
95%
Feels like
45°F
Dew Point
46°F
6 PM
47°F
30%
6mph
SE
30% Chance of Light Rain
Humidity
95%
Feels like
45°F
Dew Point
46°F
7 PM
47°F
20%
6mph
ESE
Cloudy
Humidity
95%
Feels like
44°F
Dew Point
46°F
8 PM
47°F
40%
6mph
ESE
40% Chance of Light Rain
Humidity
95%
Feels like
44°F
Dew Point
46°F
9 PM
47°F
40%
6mph
ESE
40% Chance of Light Rain
Humidity
96%
Feels like
44°F
Dew Point
46°F
10 PM
47°F
40%
5mph
ESE
40% Chance of Light Rain
Humidity
96%
Feels like
45°F
Dew Point
46°F
11 PM
47°F
30%
5mph
ESE
30% Chance of Light Rain
Humidity
96%
Feels like
45°F
Dew Point
46°F

Rainfall and Snowfall Totals Through Thursday

Flooding Rain, Heavy Snow and Winds Slam Northwest, North-Central U.S.

The atmospheric river this week will keep buffeting the Pacific Northwest with heavy rain, snow, and high winds.

Thursday's Weather Outlook

Thursday's Weather Outlook

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How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A person standing in a snowy forest with their back to the camera. They are bundled up in a white hat and a brown jacket. (Image by StockSnap from Pixabay)

Common Cold Weather Illnesses

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

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