Grantham weather live forecast

Today's maximum temperature in Grantham is expected to be 63°F. Select a day from the live weather forecast for Grantham, England, UK for more weather parameters.

Thursday
25th Sep
63

43

5

3
Friday
26th Sep
61

43

2

2
Saturday
27th Sep
63

45

0

1
Sunday
28th Sep
61

45

7

2
Monday
29th Sep
61

45

9

2

5-day weather forecast updated at 04:03 on Thursday 25th September 2025 GMT

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The 5-day weather forecast for England (Grantham) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Grantham weather forecast by day

Below are the detailed weather forecasts for Grantham for the next 5 days.

Grantham weather for Thursday 25th September 2025

Expect broken clouds in Grantham, England with a maximum temperature of 63°F, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 15 mph from the north-east.

63
°F maximum temperature
43
°F minimum temperature
broken clouds
5
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
15
mph wind from NE

Grantham weather for Friday 26th September 2025

Expect broken clouds in Grantham, England with a maximum temperature of 61°F, maximum UV of 2 (Low) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 13 mph from the south-east.

61
°F maximum temperature
43
°F minimum temperature
broken clouds
2
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
13
mph wind from SE

Grantham weather for Saturday 27th September 2025

Expect mostly cloudy with light rain in Grantham, England with a maximum temperature of 63°F, maximum UV of 1 (Low) and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 27% chance of some rain and a gentle breeze of 11 mph from the south.

63
°F maximum temperature
45
°F minimum temperature
mostly cloudy with light rain
0
hours of sunshine
1
UV index (Low)
27
% chance of some rain
<2
mm of rainfall expected
63
°F wind chill
11
mph wind from S

Grantham weather for Sunday 28th September 2025

Expect sunshine and showers in Grantham, England with a maximum temperature of 61°F, maximum UV of 2 (Low) and 7 hours of bright sunshine. There are 2-5 mm of rainfall expected with 37% chance of some rain and a gentle breeze of 9 mph from the north-west.

61
°F maximum temperature
45
°F minimum temperature
sunshine and showers
7
hours of sunshine
2
UV index (Low)
37
% chance of some rain
<5
mm of rainfall expected
61
°F wind chill
9
mph wind from NW

Grantham weather for Monday 29th September 2025

Expect scattered clouds in Grantham, England with a maximum temperature of 61°F, maximum UV of 2 (Low) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 9 mph from the north.