Grantham weather live forecast

Today's maximum temperature in Grantham is expected to be 4°C. Select a day from the live weather forecast for Grantham, England, UK for more weather parameters.

Wednesday
18th Feb
4

0

1

1
Thursday
19th Feb
4

2

0

0
Friday
20th Feb
9

2

3

1
Saturday
21st Feb
12

9

1

1
Sunday
22nd Feb
12

9

4

1

5-day weather forecast updated at 04:06 on Wednesday 18th February 2026 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 Wednesday 18th February 2026

Expect cloudy with sleet or snow in Grantham, England with a maximum temperature of 4°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 2-5 mm of sleet/snow expected with 79% chance of some sleet or snow and a fresh breeze of 34 kph from the east.

4
°C maximum temperature
0
°C minimum temperature
cloudy with sleet or snow
1
hour of sunshine
1
UV index (Low)
79
% chance of some sleet or snow
<5
mm of sleet/snow expected
-1
°C wind chill
34
kph wind from E

Grantham weather for Thursday 19th February 2026

Expect cloudy with sleet or snow in Grantham, England with a maximum temperature of 4°C and no hours of bright sunshine. There are 5-10 mm of sleet/snow expected with 49% chance of some sleet or snow and a fresh breeze of 29 kph from the north-east.

4
°C maximum temperature
2
°C minimum temperature
cloudy with sleet or snow
0
hours of sunshine
0
UV index (None)
49
% chance of some sleet or snow
<10
mm of sleet/snow expected
-1
°C wind chill
29
kph wind from NE

Grantham weather for Friday 20th February 2026

Expect mostly cloudy with light rain in Grantham, England with a maximum temperature of 9°C, maximum UV of 1 (Low) and 3 hours of bright sunshine. There are 2-5 mm of rainfall expected with 54% chance of some rain and a fresh breeze of 30 kph from the south-west.

9
°C maximum temperature
2
°C minimum temperature
mostly cloudy with light rain
3
hours of sunshine
1
UV index (Low)
54
% chance of some rain
<5
mm of rainfall expected
6
°C wind chill
30
kph wind from SW

Grantham weather for Saturday 21st February 2026

Expect mostly cloudy with light rain in Grantham, England with a maximum temperature of 12°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 39% chance of some rain and a fresh breeze of 29 kph from the south-west.

12
°C maximum temperature
9
°C minimum temperature
mostly cloudy with light rain
1
hour of sunshine
1
UV index (Low)
39
% chance of some rain
<2
mm of rainfall expected
12
°C wind chill
29
kph wind from SW

Grantham weather for Sunday 22nd February 2026

Expect mostly cloudy with light rain in Grantham, England with a maximum temperature of 12°C, maximum UV of 1 (Low) and 4 hours of bright sunshine. There are 0-2 mm of rainfall expected with 44% chance of some rain and a fresh breeze of 29 kph from the south-west.