Grantham weather live forecast

Today's maximum temperature in Grantham is expected to be 17°C. Select a day from the live weather forecast for Grantham, England, UK for more weather parameters.

Thursday
25th Sep
17

6

5

3
Friday
26th Sep
16

6

2

2
Saturday
27th Sep
17

7

0

1
Sunday
28th Sep
16

7

7

2
Monday
29th Sep
16

7

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 17°C, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 24 kph from the north-east.

17
°C maximum temperature
6
°C minimum temperature
broken clouds
5
hours of sunshine
3
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
24
kph wind from NE

Grantham weather for Friday 26th September 2025

Expect broken clouds in Grantham, England with a maximum temperature of 16°C, maximum UV of 2 (Low) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 21 kph from the south-east.

16
°C maximum temperature
6
°C minimum temperature
broken clouds
2
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
21
kph wind from SE

Grantham weather for Saturday 27th September 2025

Expect mostly cloudy with light rain in Grantham, England with a maximum temperature of 17°C, 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 17 kph from the south.

17
°C maximum temperature
7
°C 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
17
°C wind chill
17
kph wind from S

Grantham weather for Sunday 28th September 2025

Expect sunshine and showers in Grantham, England with a maximum temperature of 16°C, 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 15 kph from the north-west.

16
°C maximum temperature
7
°C minimum temperature
sunshine and showers
7
hours of sunshine
2
UV index (Low)
37
% chance of some rain
<5
mm of rainfall expected
16
°C wind chill
15
kph wind from NW

Grantham weather for Monday 29th September 2025

Expect scattered clouds in Grantham, England with a maximum temperature of 16°C, maximum UV of 2 (Low) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the north.