Grantham weather live forecast

Today's maximum temperature in Grantham is expected to be 9°C. Select a day from the live weather forecast for Grantham, England, UK for more weather parameters.

Tuesday
16th Dec
9

3

0

0
Wednesday
17th Dec
10

3

0

0
Thursday
18th Dec
11

8

0

0
Friday
19th Dec
9

5

4

0
Saturday
20th Dec
8

5

0

0

5-day weather forecast updated at 04:04 on Tuesday 16th December 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 Tuesday 16th December 2025

Expect mostly cloudy with light rain in Grantham, England with a maximum temperature of 9°C and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 36% chance of some rain and a gentle breeze of 17 kph from the north-west.

9
°C maximum temperature
3
°C minimum temperature
mostly cloudy with light rain
0
hours of sunshine
0
UV index (None)
36
% chance of some rain
<5
mm of rainfall expected
6
°C wind chill
17
kph wind from NW

Grantham weather for Wednesday 17th December 2025

Expect mostly cloudy with rain in Grantham, England with a maximum temperature of 10°C and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 81% chance of some rain and a fresh breeze of 35 kph from the south.

10
°C maximum temperature
3
°C minimum temperature
mostly cloudy with rain
0
hours of sunshine
0
UV index (None)
81
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
35
kph wind from S

Grantham weather for Thursday 18th December 2025

Expect cloudy with some rain in Grantham, England with a maximum temperature of 11°C and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 72% chance of some rain and a fresh breeze of 30 kph from the south-west.

11
°C maximum temperature
8
°C minimum temperature
cloudy with some rain
0
hours of sunshine
0
UV index (None)
72
% chance of some rain
<20
mm of rainfall expected
11
°C wind chill
30
kph wind from SW

Grantham weather for Friday 19th December 2025

Expect scattered clouds in Grantham, England with a maximum temperature of 9°C and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 28 kph from the south-west.

9
°C maximum temperature
5
°C minimum temperature
scattered clouds
4
hours of sunshine
0
UV index (None)
0
mm of rainfall expected
5
°C wind chill
28
kph wind from SW

Grantham weather for Saturday 20th December 2025

Expect mostly cloudy with light rain in Grantham, England with a maximum temperature of 8°C and no hours of bright sunshine. There are 0-2 mm of rainfall expected with 45% chance of some rain and a moderate breeze of 27 kph from the south.