Grantham (Lincolnshire) weather
Find a forecast
Forecast days
-
Maximum daytime temperature: 20° Celsius; Minimum nighttime temperature: 7° Celsius;
Maximum daytime temperature: 20 degrees Celsius; Minimum nighttime temperature: 7 degrees Celsius; -
Maximum daytime temperature: 18° Celsius; Minimum nighttime temperature: 10° Celsius;
Maximum daytime temperature: 18 degrees Celsius; Minimum nighttime temperature: 10 degrees Celsius; -
Maximum daytime temperature: 24° Celsius; Minimum nighttime temperature: 18° Celsius;
Maximum daytime temperature: 24 degrees Celsius; Minimum nighttime temperature: 18 degrees Celsius;
-
Maximum daytime temperature: 23° Celsius; Minimum nighttime temperature: 12° Celsius;
Maximum daytime temperature: 23 degrees Celsius; Minimum nighttime temperature: 12 degrees Celsius; -
Maximum daytime temperature: 20° Celsius; Minimum nighttime temperature: 8° Celsius;
Maximum daytime temperature: 20 degrees Celsius; Minimum nighttime temperature: 8 degrees Celsius;
-
Maximum daytime temperature: 19° Celsius; Minimum nighttime temperature: 8° Celsius;
Maximum daytime temperature: 19 degrees Celsius; Minimum nighttime temperature: 8 degrees Celsius;
-
Maximum daytime temperature: 19° Celsius; Minimum nighttime temperature: 9° Celsius;
Maximum daytime temperature: 19 degrees Celsius; Minimum nighttime temperature: 9 degrees Celsius;
Partly cloudy changing to clear by nighttime.
Sunrise:
Sunset:
M UV
L Pollution
No pollen data.
7 day forecast for Grantham
Today (27 September 2026)
| Time |
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|---|---|
| Weather symbols |  |
 |
|
 |
|
|
| Chance of precipitation |
30%
|
40%
|
20%
|
<5%
|
<5%
|
<5%
|
| Temperature |
19°
|
18°
|
17°
|
15°
|
13°
|
12°
|
| Feels like temperature (°C) |
17°
|
17°
|
16°
|
14°
|
12°
|
11°
|
| Wind direction and speed |
SSW
10
|
SW
9
|
WSW
9
|
WNW
8
|
WNW
7
|
W
7
|
| Wind gust (mph) |
25
|
22
|
22
|
19
|
15
|
13
|
| Visibility |
G
|
G
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
79%
|
84%
|
82%
|
81%
|
78%
|
80%
|
| UV | 1 | - | - | - | - | - |
Monday (28 September 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 | |
|
|
|
|
|
|
 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
11°
|
10°
|
9°
|
8°
|
8°
|
8°
|
7°
|
7°
|
8°
|
11°
|
13°
|
15°
|
16°
|
17°
|
18°
|
18°
|
18°
|
18°
|
17°
|
14°
|
14°
|
13°
|
12°
|
11°
|
| Feels like temperature (°C) |
10°
|
9°
|
8°
|
7°
|
7°
|
7°
|
6°
|
7°
|
8°
|
11°
|
13°
|
15°
|
16°
|
17°
|
17°
|
18°
|
17°
|
17°
|
16°
|
13°
|
12°
|
11°
|
11°
|
10°
|
| Wind direction and speed (mph) |
W
6
|
WSW
4
|
WSW
4
|
SW
5
|
SW
5
|
SW
4
|
SW
4
|
SW
2
|
SW
2
|
WSW
1
|
W
2
|
WNW
2
|
WNW
2
|
NW
2
|
NNW
2
|
NNE
2
|
ENE
2
|
E
2
|
E
3
|
E
6
|
E
7
|
ESE
7
|
ESE
7
|
ESE
6
|
| Wind gust (mph) |
11
|
9
|
9
|
8
|
8
|
8
|
8
|
8
|
7
|
4
|
7
|
9
|
9
|
9
|
9
|
9
|
9
|
9
|
12
|
14
|
15
|
15
|
13
|
12
|
| Visibility (description) |
VG
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
84%
|
87%
|
89%
|
90%
|
89%
|
89%
|
91%
|
91%
|
85%
|
77%
|
71%
|
62%
|
50%
|
40%
|
40%
|
40%
|
40%
|
40%
|
44%
|
59%
|
66%
|
71%
|
73%
|
78%
|
| UV | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 2 | 3 | 3 | 3 | 3 | 2 | 1 | 1 | 1 | - | - | - | - | - |
Tuesday (29 September 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 | |
|
|
|
 |
 |
|
 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
10%
|
20%
|
20%
|
30%
|
30%
|
30%
|
30%
|
30%
|
20%
|
20%
|
20%
|
10%
|
10%
|
<5%
|
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
10%
|
| Temperature (°C) |
11°
|
11°
|
11°
|
11°
|
11°
|
12°
|
13°
|
14°
|
14°
|
15°
|
16°
|
18°
|
20°
|
21°
|
22°
|
23°
|
24°
|
24°
|
23°
|
21°
|
20°
|
19°
|
19°
|
19°
|
| Feels like temperature (°C) |
10°
|
9°
|
10°
|
10°
|
10°
|
11°
|
12°
|
13°
|
13°
|
14°
|
15°
|
17°
|
18°
|
20°
|
21°
|
22°
|
23°
|
23°
|
22°
|
21°
|
20°
|
18°
|
18°
|
18°
|
| Wind direction and speed (mph) |
E
6
|
E
6
|
E
6
|
E
6
|
E
6
|
E
6
|
E
7
|
E
7
|
E
8
|
ESE
9
|
ESE
9
|
ESE
10
|
SE
10
|
SE
10
|
SE
10
|
SE
11
|
SE
11
|
SE
10
|
SE
9
|
SE
9
|
SE
9
|
SE
10
|
SE
10
|
SE
10
|
| Wind gust (mph) |
12
|
12
|
13
|
13
|
13
|
15
|
15
|
17
|
19
|
21
|
23
|
25
|
25
|
24
|
24
|
24
|
24
|
21
|
19
|
20
|
21
|
21
|
20
|
20
|
| Visibility (description) |
G
|
G
|
VG
|
G
|
G
|
M
|
M
|
M
|
M
|
M
|
M
|
M
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
G
|
G
|
| Humidity |
80%
|
81%
|
84%
|
85%
|
88%
|
89%
|
91%
|
93%
|
93%
|
93%
|
91%
|
88%
|
83%
|
78%
|
71%
|
67%
|
64%
|
64%
|
68%
|
75%
|
80%
|
84%
|
85%
|
86%
|
| UV | - | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 2 | 2 | 3 | 3 | 2 | 1 | 1 | 1 | - | - | - | - | - |
Wednesday (30 September 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 | |
|
|
|
|
|
|
|
 |
|
|
|
|
|
 |
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
20%
|
40%
|
50%
|
60%
|
70%
|
70%
|
70%
|
80%
|
70%
|
60%
|
40%
|
30%
|
20%
|
20%
|
20%
|
10%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
19°
|
19°
|
19°
|
19°
|
19°
|
19°
|
19°
|
18°
|
18°
|
19°
|
19°
|
19°
|
20°
|
21°
|
21°
|
22°
|
22°
|
21°
|
19°
|
18°
|
17°
|
16°
|
15°
|
15°
|
| Feels like temperature (°C) |
18°
|
18°
|
18°
|
18°
|
18°
|
18°
|
18°
|
17°
|
17°
|
17°
|
18°
|
18°
|
19°
|
20°
|
21°
|
21°
|
21°
|
20°
|
19°
|
17°
|
16°
|
15°
|
14°
|
14°
|
| Wind direction and speed (mph) |
SE
10
|
SE
10
|
SE
10
|
SE
10
|
SSE
10
|
SSE
10
|
SSE
11
|
SSE
10
|
SSE
10
|
SSE
10
|
SSE
11
|
SSE
11
|
S
11
|
S
11
|
S
10
|
SSW
10
|
S
10
|
SSW
8
|
S
7
|
S
7
|
S
7
|
S
7
|
SSW
7
|
SSW
7
|
| Wind gust (mph) |
21
|
21
|
21
|
21
|
20
|
20
|
20
|
20
|
23
|
25
|
26
|
28
|
28
|
29
|
27
|
26
|
23
|
21
|
16
|
15
|
16
|
15
|
15
|
14
|
| Visibility (description) |
G
|
G
|
G
|
G
|
G
|
VG
|
G
|
G
|
G
|
G
|
M
|
M
|
M
|
M
|
M
|
M
|
G
|
M
|
G
|
G
|
G
|
VG
|
G
|
VG
|
| Humidity |
87%
|
88%
|
87%
|
88%
|
88%
|
87%
|
87%
|
88%
|
86%
|
85%
|
85%
|
84%
|
82%
|
83%
|
79%
|
74%
|
72%
|
74%
|
76%
|
83%
|
82%
|
80%
|
77%
|
78%
|
| UV | - | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | - | - | - | - | - |
Thursday (1 October 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 | |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
14°
|
13°
|
13°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
14°
|
15°
|
17°
|
18°
|
19°
|
19°
|
20°
|
19°
|
19°
|
17°
|
15°
|
14°
|
13°
|
12°
|
12°
|
| Feels like temperature (°C) |
13°
|
13°
|
12°
|
12°
|
11°
|
11°
|
11°
|
11°
|
12°
|
13°
|
15°
|
16°
|
17°
|
18°
|
18°
|
18°
|
18°
|
18°
|
17°
|
15°
|
14°
|
12°
|
12°
|
11°
|
| Wind direction and speed (mph) |
SSW
6
|
SSW
6
|
SSW
6
|
SSW
6
|
SSW
6
|
SSW
5
|
SSW
5
|
SSW
5
|
SW
5
|
SW
5
|
WSW
5
|
WSW
5
|
WSW
5
|
W
6
|
W
6
|
W
6
|
W
6
|
W
5
|
W
4
|
WSW
3
|
SW
3
|
SW
4
|
SW
4
|
SW
5
|
| Wind gust (mph) |
12
|
11
|
11
|
10
|
10
|
10
|
10
|
10
|
11
|
13
|
13
|
16
|
19
|
17
|
17
|
16
|
15
|
13
|
10
|
8
|
9
|
10
|
10
|
10
|
| Visibility (description) |
G
|
G
|
G
|
G
|
G
|
M
|
G
|
M
|
G
|
G
|
G
|
G
|
VG
|
VG
|
G
|
VG
|
VG
|
VG
|
VG
|
G
|
G
|
G
|
VG
|
VG
|
| Humidity |
84%
|
86%
|
89%
|
91%
|
91%
|
92%
|
92%
|
92%
|
92%
|
84%
|
77%
|
68%
|
59%
|
51%
|
45%
|
43%
|
44%
|
45%
|
57%
|
69%
|
72%
|
74%
|
77%
|
78%
|
| UV | - | - | - | - | - | - | - | 1 | 1 | 1 | 2 | 3 | 3 | 3 | 2 | 2 | 1 | 1 | 1 | - | - | - | - | - |
Friday (2 October 2026)
| Time |
00:00
|
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
11°
|
11°
|
10°
|
9°
|
14°
|
18°
|
19°
|
15°
|
13°
|
| Feels like temperature (°C) |
11°
|
10°
|
9°
|
8°
|
14°
|
17°
|
18°
|
15°
|
13°
|
| Wind direction and speed (mph) |
SW
5
|
SW
5
|
SW
5
|
SSW
5
|
SSW
5
|
SW
6
|
SW
6
|
SSW
3
|
S
3
|
| Wind gust (mph) |
10
|
10
|
10
|
12
|
18
|
17
|
15
|
10
|
10
|
| Visibility (description) |
VG
|
VG
|
VG
|
G
|
VG
|
VG
|
VG
|
VG
|
G
|
| Humidity |
79%
|
83%
|
86%
|
90%
|
73%
|
55%
|
53%
|
70%
|
79%
|
| UV | - | - | - | 1 | 2 | 3 | 1 | - | - |
Saturday (3 October 2026)
| Time |
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
20%
|
10%
|
10%
|
| Temperature (°C) |
12°
|
10°
|
9°
|
14°
|
18°
|
19°
|
15°
|
13°
|
| Feels like temperature (°C) |
12°
|
10°
|
9°
|
14°
|
18°
|
19°
|
15°
|
13°
|
| Wind direction and speed (mph) |
SSW
3
|
SSW
3
|
SSW
2
|
S
3
|
SW
5
|
WSW
4
|
S
3
|
SSE
3
|
| Wind gust (mph) |
9
|
9
|
9
|
13
|
14
|
12
|
9
|
9
|
| Visibility (description) |
G
|
G
|
P
|
G
|
VG
|
VG
|
VG
|
G
|
| Humidity |
87%
|
93%
|
96%
|
82%
|
62%
|
56%
|
79%
|
85%
|
| UV | - | - | 1 | 2 | 3 | 1 | - | - |
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Flood warnings in force for England
Flood warnings in force for England
East Midlands weather forecast
Headline:
Dry, warm and sunny on Monday, clouding over by Tuesday.
This Evening and Tonight:
Any remaining cloud and rain soon clearing. A dry and mostly clear night to follow with the wind easing to a light breeze. Feeling chilly in places, with fog patches and grass frost likely in rural areas. Minimum temperature 4 °C.
Monday:
Any fog soon clearing to leave a fine day with light winds and long sunny spells, the sunshine may turn hazy at times. Feeling warm in any afternoon sunshine. Maximum temperature 18 °C.
Outlook for Tuesday to Thursday:
Cloudy with patchy rain Tuesday morning, warm night to follow. Heavy rain followed by a clearer evening on Wednesday. Dry with sunny spells on Thursday. Temperatures remaining mostly above average.
Updated: