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Weather in Grantham, United Kingdom 🇬🇧

Current Weather in Grantham

Partly Cloudy
13°C
Feels like 10°C. Partly Cloudy.
🌬️ 15 km/h W
💧 80% Humidity
🧭 1018 hPa
👁️ 10.0 km Visibility
☀️ UV Index: 0.0
🌡️ Dew Point: 10°C
🌅 Sunrise: 06:13 AM
🌇 Sunset: 07:52 PM
Map Overlays:

In Grantham right now it is 13°C and partly cloudy, feeling like 10°C. Humidity is 80% with winds around 15 km/h, and the UV index is 0 (low). In the days ahead, expect temperatures in Grantham from about 12°C to 23°C.

Hourly Forecast for Grantham

03:00
Partly Cloudy
13°
14%
04:00
Clear
12°
10%
05:00
Clear
12°
10%
06:00
Clear
12°
10%
07:00
Sunny
12°
10%
08:00
Overcast
13°
20%
09:00
Partly Cloudy
15°
8%
10:00
Cloudy
17°
11%
11:00
Overcast
18°
11%
12:00
Sunny
19°
2%
13:00
Sunny
20°
3%
14:00
Sunny
21°
2%
15:00
Overcast
21°
10%
16:00
Overcast
21°
10%
17:00
Overcast
21°
10%
18:00
Overcast
20°
11%
19:00
Overcast
18°
13%
20:00
Partly Cloudy
18°
6%
21:00
Overcast
17°
17%
22:00
Overcast
16°
19%
23:00
Overcast
16°
20%
00:00
Overcast
16°
21%
01:00
Overcast
15°
20%
02:00
Clear
15°
11%

14-Day Forecast for Grantham

Tue, Sep 01
Overcast Overcast
21° / 12°
Wed, Sep 02
Overcast Overcast
20° / 13°
Thu, Sep 03
Overcast Overcast
23° / 15°
Fri, Sep 04
Overcast Overcast
21° / 14°
Sat, Sep 05
Partly Cloudy Partly Cloudy
20° / 10°
Sun, Sep 06
Overcast Overcast
24° / 13°
Mon, Sep 07
Overcast Overcast
25° / 16°
Tue, Sep 08
Overcast Overcast
20° / 14°
Wed, Sep 09
Sunny Sunny
19° / 13°
Thu, Sep 10
Sunny Sunny
14° / 12°
Fri, Sep 11
Sunny Sunny
17° / 10°
Sat, Sep 12
Overcast Overcast
18° / 10°
Sun, Sep 13
Sunny Sunny
18° / 10°
Mon, Sep 14
Sunny Sunny
22° / 10°

Additional Forecasts for Grantham

Air Quality

💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 151.0 μg/m³
O₃ (Ozone) 50.0 μg/m³
NO₂ (Nitrogen Dioxide) 5.5 μg/m³
SO₂ (Sulphur Dioxide) 0.5 μg/m³
PM2.5 (Fine particles) 4.5 μg/m³
PM10 (Coarse particles) 7.9 μg/m³

Historical Weather

Weather Forecasts for Other Cities in United Kingdom

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Best Time to Be Outside in Grantham Today

The most comfortable window in Grantham today looks like 12:00 to 15:00, when it is around 20°C. It should stay dry through that window. No significant rain is expected in the next several hours.

Frequently Asked Questions about Weather in Grantham

What is the temperature in Grantham right now?

It is currently 13°C (56°F) in Grantham, partly cloudy (feels like 10°C).

What's the weather like in Grantham right now?

Right now Grantham has Partly Cloudy, humidity 80%, wind 15 km/h W.

What is today's forecast for Grantham?

Today in Grantham: high 21°C, low 12°C, overcast. Chance of rain: 9%.

What is the 7-day weather forecast for Grantham?

Daily highs and lows for Grantham:

  • 2026-09-01: 21°C / 12°C
  • 2026-09-02: 20°C / 13°C
  • 2026-09-03: 23°C / 15°C
  • 2026-09-04: 21°C / 14°C
  • 2026-09-05: 20°C / 10°C
  • 2026-09-06: 24°C / 13°C
  • 2026-09-07: 25°C / 16°C
Is it going to rain in Grantham today?

There is a 9% chance of rain in Grantham today.

What is the wind speed in Grantham right now?

Wind in Grantham is currently 15 km/h (9 mph) from the W.

What is the UV index in Grantham right now?

The UV index in Grantham is currently 0 (low). Sun protection is recommended when the index is 3 or higher.

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