Hourly Weather Forecast - Harrow, Harrow, GB

12 AM
46°F
30%
6mph
E
30% Chance Rain Showers
Humidity
99%
Feels like
43°F
Dew Point
46°F
1 AM
46°F
20%
6mph
E
Foggy
Humidity
99%
Feels like
43°F
Dew Point
46°F
2 AM
46°F
20%
5mph
E
Foggy
Humidity
100%
Feels like
43°F
Dew Point
46°F
3 AM
45°F
20%
5mph
E
Foggy
Humidity
100%
Feels like
42°F
Dew Point
45°F
4 AM
45°F
20%
5mph
E
Foggy
Humidity
100%
Feels like
42°F
Dew Point
45°F
5 AM
44°F
10%
5mph
E
Foggy
Humidity
100%
Feels like
41°F
Dew Point
44°F
6 AM
44°F
30%
5mph
E
30% Chance Rain Showers
Humidity
100%
Feels like
41°F
Dew Point
44°F
7 AM
45°F
30%
5mph
ENE
30% Chance Rain Showers
Humidity
99%
Feels like
42°F
Dew Point
44°F
8 AM
45°F
30%
5mph
NE
30% Chance Rain Showers
Humidity
97%
Feels like
43°F
Dew Point
44°F
8:05 AM
9 AM
46°F
20%
5mph
NE
Partly Cloudy
Humidity
95%
Feels like
44°F
Dew Point
45°F
10 AM
48°F
20%
5mph
NE
Mostly Cloudy
Humidity
93%
Feels like
45°F
Dew Point
46°F
11 AM
49°F
20%
5mph
NE
Mostly Cloudy
Humidity
93%
Feels like
46°F
Dew Point
47°F
12 PM
49°F
20%
6mph
NE
Mostly Cloudy
Humidity
92%
Feels like
47°F
Dew Point
47°F
1 PM
49°F
20%
5mph
NE
Mostly Cloudy
Humidity
92%
Feels like
46°F
Dew Point
47°F
2 PM
48°F
30%
5mph
ENE
30% Chance of Light Rain
Humidity
94%
Feels like
46°F
Dew Point
46°F
3 PM
47°F
30%
5mph
ENE
30% Chance of Light Rain
Humidity
96%
Feels like
45°F
Dew Point
46°F
3:54 PM
4 PM
46°F
30%
6mph
ENE
30% Chance of Light Rain
Humidity
98%
Feels like
44°F
Dew Point
46°F
5 PM
46°F
10%
6mph
ENE
Mostly Cloudy
Humidity
98%
Feels like
43°F
Dew Point
46°F
6 PM
46°F
10%
6mph
ENE
Mostly Cloudy
Humidity
98%
Feels like
42°F
Dew Point
45°F
7 PM
45°F
10%
6mph
ENE
Mostly Cloudy
Humidity
98%
Feels like
42°F
Dew Point
45°F
8 PM
45°F
10%
6mph
ENE
Mostly Cloudy
Humidity
98%
Feels like
41°F
Dew Point
44°F
9 PM
44°F
10%
6mph
ENE
Cloudy
Humidity
98%
Feels like
41°F
Dew Point
44°F
10 PM
44°F
10%
6mph
ENE
Foggy
Humidity
99%
Feels like
41°F
Dew Point
44°F
11 PM
44°F
10%
6mph
NE
Cloudy
Humidity
98%
Feels like
41°F
Dew Point
44°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

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