Grantham
25°76°
Drizzle and Humid
Feels Like: 24°75°
Min: 24°75°
Max: 31°87°
The next few hours will be partly cloudy, with tomorrow reaching 29°C and dropping to 23°C. The coming days will be light rain until night and possible thunderstorms in the afternoon.
Want a closer look at the weather?
Premium adds minute-by-minute rain timing, yesterday comparisons, and more detail across Airpult.
Air quality is satisfactory, and air pollution poses little or no risk.
06:04
Sunrise
17:42
Sunset
06:45
Moonrise
18:22
Moonset
Today
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
See moon phases, eclipses, and seasons for this year.
View astronomySee sky darkness, moon phase, and the best viewing window for Grantham.
View stargazing scoreWeather in Grantham tomorrow, October 12, 2026
Expect unsettled, showery conditions in Grantham on October 12, 2026 as rain moves through. The day opens on a wet note and needs flexible outdoor plans. Early hours look the most unsettled, with rain probability near 94% by 11:00. The thickest cloud arrives around 01:00, reaching about 65%.Expect unsettled, showery conditions in Grantham on October 12, 2026 as rain moves through. The day opens on a wet note and needs flexible outdoor plans. Early hours look the most unsettled, with rain probability near 94% by 11:00. The thickest cloud arrives around 01:00, reaching about 65%.
Expect highs of 29°C and cooler readings close to 23°C. Expect humidity between 73% and 100%, most humid near 01:00. Winds stay light, near 12 km/h by 10:00, so the day feels still more than breezy.Expect highs of 84°F and cooler readings close to 73°F. Expect humidity between 73% and 100%, most humid near 01:00. Winds stay light, near 8 mph by 10:00, so the day feels still more than breezy.
Afternoon showers stay in play, peaking near 96% around 14:00. Skies remain cluttered, with cover about 64% by 12:00. Horizontal visibility sits around 15.2 km, briefly nearer 6.8 km. Daylight runs from 06:04 to 17:42, lasting 11 hours 37 minutes of sunlight today.Afternoon showers stay in play, peaking near 96% around 14:00. Skies remain cluttered, with cover about 64% by 12:00. Horizontal visibility sits around 9.5 mi, briefly nearer 4.2 mi. Daylight runs from 06:04 to 17:42, lasting 11 hours 37 minutes of sunlight today.
In short, treat October 12, 2026 in Grantham as a damp day: pack covers, watch the wetter hours, and expect a high near 29°C.In short, treat October 12, 2026 in Grantham as a damp day: pack covers, watch the wetter hours, and expect a high near 84°F.
Frequently asked questions about weather in Grantham
How warm does it get in Grantham?
The warmest month in Grantham is August, with average high temperatures of 32°C. The average temperature during this period is around 28°C.The warmest month in Grantham is August, with average high temperatures of 89°F. The average temperature during this period is around 82°F.
How cold does it get in Grantham?
The coldest month in Grantham is January, with average low temperatures of 22°C. The average temperature during this period is around 24°C.The coldest month in Grantham is January, with average low temperatures of 71°F. The average temperature during this period is around 76°F.
What is the wettest time of year in Grantham?
The wettest month in Grantham is October, with an average of 198 mm of precipitation.The wettest month in Grantham is October, with an average of 7.8 in of precipitation.
What is the driest time of year in Grantham?
The driest month in Grantham is February, with an average of 39 mm of precipitation.The driest month in Grantham is February, with an average of 1.5 in of precipitation.