Hourly Weather Forecast - Letchworth, Hertfordshire, GB

12 AM
45°F
30%
5mph
ESE
30% Chance of Light Rain
Humidity
99%
Feels like
42°F
Dew Point
45°F
1 AM
45°F
30%
4mph
ESE
30% Chance of Light Rain
Humidity
98%
Feels like
43°F
Dew Point
45°F
2 AM
45°F
10%
3mph
ESE
Foggy
Humidity
99%
Feels like
44°F
Dew Point
45°F
3 AM
45°F
10%
3mph
ESE
Foggy
Humidity
99%
Feels like
43°F
Dew Point
44°F
4 AM
44°F
10%
3mph
ESE
Foggy
Humidity
100%
Feels like
43°F
Dew Point
44°F
5 AM
44°F
20%
4mph
E
Foggy
Humidity
100%
Feels like
42°F
Dew Point
44°F
6 AM
44°F
30%
4mph
E
30% Chance Rain Showers
Humidity
100%
Feels like
41°F
Dew Point
44°F
7 AM
44°F
30%
4mph
E
30% Chance Rain Showers
Humidity
100%
Feels like
41°F
Dew Point
44°F
8 AM
44°F
30%
5mph
ENE
30% Chance of Light Rain
Humidity
100%
Feels like
41°F
Dew Point
44°F
8:06 AM
9 AM
45°F
30%
6mph
NE
30% Chance of Light Rain
Humidity
98%
Feels like
42°F
Dew Point
45°F
10 AM
47°F
30%
6mph
NE
30% Chance of Light Rain
Humidity
94%
Feels like
43°F
Dew Point
45°F
11 AM
48°F
30%
7mph
NE
30% Chance of Light Rain
Humidity
90%
Feels like
44°F
Dew Point
45°F
12 PM
48°F
30%
8mph
NE
30% Chance of Light Rain
Humidity
89%
Feels like
45°F
Dew Point
45°F
1 PM
48°F
30%
8mph
NE
30% Chance of Light Rain
Humidity
90%
Feels like
44°F
Dew Point
45°F
2 PM
47°F
30%
9mph
ENE
30% Chance of Light Rain
Humidity
92%
Feels like
43°F
Dew Point
45°F
3 PM
46°F
20%
9mph
ENE
Mostly Cloudy
Humidity
94%
Feels like
42°F
Dew Point
45°F
3:51 PM
4 PM
46°F
20%
9mph
ENE
Mostly Cloudy
Humidity
95%
Feels like
41°F
Dew Point
44°F
5 PM
45°F
20%
10mph
ENE
Cloudy
Humidity
96%
Feels like
39°F
Dew Point
44°F
6 PM
44°F
30%
11mph
ENE
30% Chance of Light Rain
Humidity
96%
Feels like
38°F
Dew Point
43°F
7 PM
44°F
30%
11mph
ENE
30% Chance of Light Rain
Humidity
97%
Feels like
38°F
Dew Point
43°F
8 PM
43°F
30%
10mph
ENE
30% Chance of Light Rain
Humidity
97%
Feels like
38°F
Dew Point
43°F
9 PM
43°F
30%
10mph
ENE
30% Chance of Light Rain
Humidity
98%
Feels like
37°F
Dew Point
42°F
10 PM
43°F
30%
9mph
ENE
30% Chance of Light Rain
Humidity
98%
Feels like
37°F
Dew Point
42°F
11 PM
43°F
10%
9mph
ENE
Cloudy
Humidity
97%
Feels like
38°F
Dew Point
42°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

How to Measure Snow via NWS

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

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide