For this time of the year, Grantham is experiencing slightly cooler temperatures, gently falling below the seasonal average.
According to the long-range forecast, temperatures are expected to be 15.2 °C which is -1.2 °C lower than the historical average.
Select a month and click on a day for more information:
Friday
May 1
16° / 8°
Saturday
May 2
15° / 7°
Sunday
May 3
13° / 6°
Monday
May 4
14° / 6°
Tuesday
May 5
15° / 6°
Wednesday
May 6
14° / 6°
Thursday
May 7
15° / 5°
Friday
May 8
15° / 5°
Saturday
May 9
16° / 7°
Sunday
May 10
16° / 7°
Monday
May 11
16° / 6°
Tuesday
May 12
16° / 6°
Wednesday
May 13
10° / 4°
Thursday
May 14
11° / 2°
Friday
May 15
11° / 3°
Saturday
May 16
12° / 3°
Sunday
May 17
15° / 2°
Monday
May 18
14° / 8°
Tuesday
May 19
14° / 9°
Wednesday
May 20
18° / 8°
Thursday
May 21
19° / 10°
Friday
May 22
20° / 13°
Saturday
May 23
16° / 12°
Sunday
May 24
19° / 8°
Monday
May 25
17° / 10°
Tuesday
May 26
17° / 9°
Wednesday
May 27
17° / 7°
Thursday
May 28
15° / 6°
Friday
May 29
15° / 7°
Saturday
May 30
16° / 7°
Sunday
May 31
16° / 8°
Grantham 30 days weather forecast
Check out our estimated 30 days weather forecast for Grantham, this data is based on the average weather in Grantham in the last few years.
For a more accurate and detailed forecast, check out the 14 day weather for Grantham next to the desired date.