Cumnor (Oxfordshire) weather

Forecast days

Yellow weather warning.
Sunrise iconSunrise:
Sunset iconSunset:
M UV
L Pollution

7 day forecast for Cumnor

Today (27 August 2026)
Time
11:00
12:00
13:00
14:00
15:00
16:00
17:00
18:00
19:00
20:00
21:00
22:00
23:00
Weather symbols Heavy shower day Light shower day Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night
Chance of precipitation
80%
60%
30%
20%
10%
10%
10%
20%
20%
20%
20%
20%
30%
Temperature
20°
21°
22°
24°
25°
25°
25°
24°
22°
21°
19°
18°
18°
Feels like temperature (°C)
20°
21°
23°
24°
25°
24°
24°
22°
21°
19°
18°
18°
17°
Wind direction and speed
ESE
7
SE
7
SE
6
SE
7
SSE
7
SSE
8
S
8
S
9
SSW
8
SSW
8
SSW
7
SW
7
SW
8
Wind gust (mph)
14
14
14
15
17
21
20
19
17
15
15
15
15
Visibility
M
M
G
G
VG
VG
VG
VG
VG
VG
VG
VG
G
Humidity
90%
91%
84%
68%
57%
48%
45%
45%
52%
61%
67%
71%
76%
UV 3 2 3 3 3 2 1 1 1 1 - - -
Friday (28 August 2026)
Time
00:00
01:00
02:00
03:00
04:00
05:00
06:00
07:00
08:00
09:00
10:00
11:00
12:00
13:00
14:00
15:00
16:00
17:00
18:00
19:00
20:00
21:00
22:00
23:00
Weather symbols Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Light shower day Light shower day Light shower day Light shower day Light shower day Light shower day Sunny intervals Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night
Chance of precipitation
30%
30%
20%
20%
20%
10%
10%
<5%
10%
30%
30%
40%
50%
50%
60%
60%
60%
60%
60%
50%
30%
20%
20%
10%
Temperature (°C)
17°
17°
16°
16°
16°
15°
15°
15°
16°
17°
19°
20°
20°
21°
21°
21°
21°
20°
20°
19°
18°
18°
17°
16°
Feels like temperature (°C)
16°
16°
15°
15°
15°
14°
14°
14°
15°
15°
16°
17°
17°
18°
18°
18°
18°
18°
18°
17°
17°
16°
16°
15°
Wind direction and speed (mph)
SW
8
SW
8
SW
8
SW
8
SW
8
SW
8
SW
9
SW
9
SW
11
SW
13
SW
13
SW
14
SW
15
SW
15
SW
15
SW
15
SW
14
SW
13
WSW
13
WSW
13
SW
11
SW
10
SW
9
SW
10
Wind gust (mph)
15
16
15
14
15
16
17
20
22
24
26
27
28
30
29
30
30
28
25
22
19
18
17
17
Visibility (description)
G
G
G
G
G
VG
VG
VG
VG
VG
VG
VG
VG
G
VG
VG
G
G
VG
VG
VG
VG
VG
VG
Humidity
78%
84%
87%
89%
89%
89%
91%
88%
83%
76%
71%
66%
63%
61%
63%
71%
69%
75%
73%
76%
77%
82%
84%
86%
UV - - - - - - 1 1 1 2 3 4 3 4 3 3 2 1 1 1 1 - - -
Saturday (29 August 2026)
Time
00:00
01:00
02:00
03:00
04:00
05:00
06:00
07:00
08:00
09:00
10:00
11:00
12:00
13:00
14:00
15:00
16:00
17:00
18:00
19:00
20:00
21:00
22:00
23:00
Weather symbols Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Sunny intervals Cloudy Cloudy Light rain Light rain Light rain Light rain Light rain Light shower day Light shower day Light shower day Light shower day Light shower day Light shower day Light shower night Overcast Cloudy Cloudy
Chance of precipitation
10%
10%
10%
10%
10%
10%
20%
30%
40%
70%
80%
90%
90%
80%
80%
80%
80%
70%
60%
50%
50%
40%
40%
30%
Temperature (°C)
16°
16°
16°
16°
16°
16°
16°
15°
16°
17°
18°
18°
18°
18°
19°
20°
21°
20°
20°
19°
18°
18°
17°
17°
Feels like temperature (°C)
15°
15°
15°
15°
15°
15°
14°
14°
15°
16°
16°
16°
17°
17°
17°
18°
19°
19°
18°
17°
17°
16°
16°
16°
Wind direction and speed (mph)
SW
10
SW
10
SW
9
SW
9
SW
9
SW
9
SW
9
SSW
9
SSW
10
SSW
10
SSW
11
SSW
11
SSW
13
S
13
S
13
SSW
14
SSW
14
SSW
13
SSW
13
SSW
13
SSW
11
SSW
11
SW
11
SW
11
Wind gust (mph)
17
16
18
17
17
17
18
19
20
22
23
24
26
27
27
27
29
27
27
26
25
22
20
20
Visibility (description)
VG
G
G
G
G
G
G
G
VG
G
G
G
G
G
G
G
G
VG
VG
VG
VG
G
G
G
Humidity
87%
89%
91%
91%
92%
92%
91%
87%
86%
83%
80%
84%
86%
89%
86%
84%
79%
80%
80%
78%
82%
87%
87%
88%
UV - - - - - - 1 1 1 1 2 1 2 3 2 2 2 1 1 1 - - - -
Sunday (30 August 2026)
Time
00:00
01:00
02:00
03:00
04:00
05:00
06:00
07:00
08:00
09:00
10:00
11:00
12:00
13:00
14:00
15:00
16:00
17:00
18:00
19:00
20:00
21:00
22:00
23:00
Weather symbols Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Cloudy Sunny intervals Sunny intervals Cloudy Sunny intervals Sunny intervals Light shower night Partly cloudy night Cloudy Cloudy
Chance of precipitation
30%
20%
20%
20%
30%
30%
20%
20%
10%
10%
20%
20%
30%
40%
50%
50%
50%
50%
50%
50%
50%
50%
50%
50%
Temperature (°C)
17°
17°
17°
16°
16°
16°
16°
16°
16°
17°
18°
19°
20°
21°
21°
22°
21°
20°
19°
18°
18°
17°
16°
16°
Feels like temperature (°C)
16°
15°
15°
15°
15°
14°
14°
14°
15°
16°
16°
17°
18°
18°
19°
20°
19°
18°
18°
17°
17°
16°
15°
15°
Wind direction and speed (mph)
SW
11
WSW
11
WSW
11
WSW
10
WSW
11
WSW
10
SW
10
SW
9
SW
9
WSW
10
WSW
11
WSW
11
WSW
11
SW
11
SW
11
SW
11
SW
11
SW
11
SSW
10
SW
9
SSW
9
SSW
9
SSW
9
SSW
9
Wind gust (mph)
20
22
23
21
20
19
19
19
21
22
22
23
23
25
25
25
24
24
22
20
17
17
17
17
Visibility (description)
G
G
G
G
G
G
G
G
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
G
G
Humidity
90%
90%
89%
90%
90%
89%
90%
88%
85%
79%
74%
67%
64%
61%
59%
62%
63%
62%
69%
74%
77%
78%
84%
86%
UV - - - - - - 1 1 1 2 3 4 5 3 4 3 2 1 1 1 - - - -
Monday (31 August 2026)
Time
00:00
01:00
02:00
03:00
04:00
05:00
06:00
07:00
08:00
09:00
10:00
11:00
12:00
13:00
14:00
15:00
16:00
17:00
18:00
19:00
20:00
21:00
22:00
23:00
Weather symbols Light shower night Light shower night Light shower night Light shower night Light shower night Light shower night Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Light shower day Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night
Chance of precipitation
50%
60%
60%
60%
60%
60%
50%
30%
30%
20%
30%
30%
40%
50%
50%
40%
20%
20%
20%
10%
10%
10%
10%
10%
Temperature (°C)
15°
15°
15°
15°
14°
14°
14°
14°
14°
16°
17°
18°
19°
20°
20°
20°
20°
20°
19°
18°
17°
17°
16°
15°
Feels like temperature (°C)
14°
14°
14°
14°
13°
13°
13°
12°
13°
14°
15°
16°
16°
17°
17°
17°
17°
16°
16°
16°
15°
15°
14°
13°
Wind direction and speed (mph)
S
9
SSW
9
SSW
8
SSW
8
SSW
8
SSW
9
SW
9
SW
9
WSW
10
WSW
11
WSW
11
W
13
W
13
W
14
W
14
W
14
W
14
W
14
W
14
W
13
W
11
WSW
10
WSW
9
WSW
9
Wind gust (mph)
17
16
16
16
18
17
16
18
20
22
22
25
27
30
29
28
29
27
25
22
21
19
17
16
Visibility (description)
G
G
G
G
M
G
G
G
G
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
Humidity
88%
90%
92%
92%
92%
92%
93%
92%
90%
85%
78%
71%
64%
59%
57%
56%
55%
54%
55%
60%
66%
71%
74%
77%
UV - - - - - - 1 1 1 2 3 4 5 5 5 4 2 1 1 1 - - - -
Tuesday (1 September 2026)
Time
00:00
01:00
04:00
07:00
10:00
13:00
16:00
19:00
22:00
Weather symbols Partly cloudy night Partly cloudy night Partly cloudy night Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night
Chance of precipitation
10%
10%
10%
20%
30%
30%
20%
10%
10%
Temperature (°C)
15°
14°
14°
13°
17°
19°
20°
18°
16°
Feels like temperature (°C)
13°
13°
12°
12°
15°
17°
18°
17°
15°
Wind direction and speed (mph)
WSW
9
WSW
8
SW
9
SW
8
WSW
11
WSW
13
WSW
10
SW
9
SW
9
Wind gust (mph)
15
15
14
20
25
26
25
19
17
Visibility (description)
VG
VG
VG
G
VG
VG
VG
VG
VG
Humidity
80%
83%
87%
89%
74%
60%
58%
65%
78%
UV - - - 1 3 4 2 1 -
Wednesday (2 September 2026)
Time
01:00
04:00
07:00
10:00
13:00
16:00
19:00
22:00
Weather symbols Partly cloudy night Cloudy Cloudy Cloudy Cloudy Sunny intervals Partly cloudy night Cloudy
Chance of precipitation
10%
20%
20%
20%
30%
10%
10%
10%
Temperature (°C)
15°
15°
15°
18°
21°
22°
20°
18°
Feels like temperature (°C)
14°
14°
14°
16°
18°
19°
18°
16°
Wind direction and speed (mph)
SW
9
SW
9
SW
9
WSW
11
WSW
14
WSW
13
WSW
11
WSW
9
Wind gust (mph)
16
17
21
26
26
24
21
18
Visibility (description)
G
M
M
VG
VG
VG
VG
VG
Humidity
86%
90%
91%
78%
66%
62%
68%
81%
UV - - 1 3 3 2 1 -

UK video forecast

Cumnor weather map

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Flood warnings in force for England
Flood warnings in force for England

London & South East England weather forecast

Headline:

Heavy rain this morning, but turning drier later.

Today:

A cloudy and wet start with heavy, potentially thundery rain moving across the area. Rain will clear to the north by the afternoon with a sunshine and a few showers following. feeling warm and humid. Maximum temperature 27 °C.

Tonight:

Starting mostly dry but thunderstorms may move into the east of the region for a time. These showers move north, leaving clear spells for many. Staying mild overnight. Minimum temperature 13 °C.

Friday:

Mostly dry start but showers in the west will develop and move eastwards through the afternoon. Possible thunder and hail, but staying warm. Maximum temperature 25 °C.

Outlook for Saturday to Monday:

An unsettled bank holiday weekend with showers and possibly more thunder on the way. Staying warm to start with but turning fresher as winds shift to a westerly by Monday.

Updated:

UK long range weather forecast