Live Weather & Forecast
Weather in Grantham
England, United Kingdom · Real-time conditions & 3-day outlook
4°C
Feels like 1°C
39°F / Feels 35°F
Clear
Grantham, England
🌙 Nighttime
Updated: 2026-04-13 03:45
Humidity
87%
Wind
10.4 km/h SW
Wind Gust
21.9 km/h
Pressure
1011 mb
Visibility
10 km
UV Index
0
(Low)
Precipitation
0 mm
Cloud Cover
0%
Dew Point
1.7°C
Wind Degree
228°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
168.9 μg/m³
NO₂
7.3 μg/m³
O₃
56 μg/m³
SO₂
1.5 μg/m³
PM 2.5
9.6 μg/m³
PM 10
15.1 μg/m³
Today's Hourly Forecast
24-hour breakdown for Grantham, England
12 AM
4°
Clear
1 AM
4°
Clear
2 AM
3°
Clear
3 AM
4°
Clear
4 AM
2°
Clear
5 AM
2°
Clear
6 AM
2°
Clear
7 AM
3°
Sunny
8 AM
5°
Sunny
9 AM
7°
Sunny
10 AM
9°
Sunny
11 AM
10°
Sunny
12 PM
11°
Sunny
1 PM
12°
Patchy rain nearby
2 PM
12°
Patchy rain nearby
3 PM
12°
Patchy rain nearby
4 PM
12°
Patchy rain nearby
5 PM
11°
Patchy rain nearby
6 PM
11°
Sunny
7 PM
9°
Patchy rain nearby
8 PM
7°
Clear
9 PM
6°
Patchy rain nearby
10 PM
5°
Clear
11 PM
5°
Clear
3-Day Forecast
Daily overview for Grantham, England
Today
Patchy rain nearby
12°
/
2°
🌧️ 89% chance of rain
💧 Avg. humidity: 77%
💨 Max wind: 13 km/h
🌧️ Total precip: 0.44 mm
☀️ UV Index: 0.8
🌅 Sunrise: 06:09 AM
🌇 Sunset: 07:58 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Partly Cloudy
14°
/
3°
🌧️ 0% chance of rain
💧 Avg. humidity: 77%
💨 Max wind: 19.4 km/h
🌧️ Total precip: 0.04 mm
☀️ UV Index: 0.9
🌅 Sunrise: 06:07 AM
🌇 Sunset: 08:00 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Wed, Apr 15
Patchy rain nearby
15°
/
8°
🌧️ 83% chance of rain
💧 Avg. humidity: 90%
💨 Max wind: 30.6 km/h
🌧️ Total precip: 2.6 mm
☀️ UV Index: 0.4
🌅 Sunrise: 06:04 AM
🌇 Sunset: 08:02 PM
🌙 Waning Crescent
🌑 Moon: 8% lit
Best Time to Visit Grantham
Plan your trip to Grantham, United Kingdom around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in Grantham?
Current conditions in Grantham: Clear, temperature 4°C, humidity 87%.
What is the best time to visit Grantham?
The best time to visit Grantham is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Grantham?
Grantham is located at approximately 52.9° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Grantham?
The wettest period in Grantham is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Grantham?
For visits to Grantham during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Grantham in?
Grantham is located in United Kingdom, in the state of England.
What are the public holidays in Grantham in 2026?
View the 2026 public holidays for Grantham on our Holidays page.
What are the GPS coordinates used for the weather forecast in Grantham?
The weather forecast for Grantham uses coordinates 52.9132, -0.6439.