Weather forecast for todayGrantham, United Kingdom

Weather forecast for today

Current condition 11:59 am BST

  • 12°C
  • Feels like:
    10°C
Partly Cloudy
Partly Cloudy
  • Precipitation: 0mm
  • Wind: 24km/hNNE 20°
  • Humidity: 68%
  • Dewpoint: 7°C
  • Pressure: 1032.51mbar
  • Visibility: 16.09km
  • UV index: 2
  • ▼
In Grantham, currently, the sky is partially covered with clouds, offering glimpses of blue.
The temperature is a crisp 12°C, the feels-like reading is estimated at a fresh 10°C. The current temperature is almost at the maximum anticipated 13°C for today.

Sunday 18. Oct 2026

  • 13°C
  • 9°C
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 24%
  • Precipitation: 10mm
  • Wind: 25km/hNNE 23°
  • Humidity: 63%
  • UV index: 2
  • Sunrise: 7:34 am BST
  • Sunset: 6:01 pm BST
  • ▼
On Sunday, 18th of October, a low, thick cloud deck is likely to persist.
With a low probability, light precipitation is anticipated for today. Minor temperature shifts are predicted, peaking at a maximum of a mild 13°C and dropping to a minimum of a brisk 9°C.
Today's maximum temperature is expected to reflect the standard October high of 14°C.
Sunrise was at 7:34 am and sunset will be at 6:01 pm; the daylight will last for 10h and 27min.

Hourly overview

Hourly temperatures

Warmest period: 12 pm - 4 pm 13°C.
Coldest period: 8 pm - 9 pm 10°C.

Chance of precipitation

Highest chance: 24%.

Hourly weather forecast

  • 12 pm
  • 13°C
  • Feels like:
    10°C
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0mm
  • Wind: 24km/hNNE 19°
  • Humidity: 67%
  • Pressure: 1032mbar
  • Visibility: 16km
  • UV index: 1
  • ▼
  • 1 pm
  • 13°C
  • Feels like:
    11°C
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 19%
  • Precipitation: 0mm
  • Wind: 25km/hNNE 24°
  • Humidity: 61%
  • Pressure: 1032mbar
  • Visibility: 16km
  • UV index: 1
  • ▼
  • 2 pm
  • 13°C
  • Feels like:
    11°C
Cloudy
Cloudy
  • Precip. probability: 2%
  • Precipitation: 0mm
  • Wind: 25km/hNNE 26°
  • Humidity: 61%
  • Pressure: 1031mbar
  • Visibility: 16km
  • UV index: 1
  • ▼
  • 3 pm
  • 13°C
  • Feels like:
    11°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 19%
  • Precipitation: 0mm
  • Wind: 24km/hNNE 26°
  • Humidity: 58%
  • Pressure: 1031mbar
  • Visibility: 16km
  • UV index: 1
  • ▼
  • 4 pm
  • 13°C
  • Feels like:
    10°C
Cloudy
Cloudy
  • Precip. probability: 21%
  • Precipitation: 0mm
  • Wind: 24km/hNNE 26°
  • Humidity: 59%
  • Pressure: 1031mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
  • 5 pm
  • 12°C
  • Feels like:
    10°C
Cloudy
Cloudy
  • Precip. probability: 24%
  • Precipitation: 0mm
  • Wind: 22km/hNNE 25°
  • Humidity: 62%
  • Pressure: 1031mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
  • 6 pm
  • 11°C
  • Feels like:
    9°C
Cloudy
Cloudy
  • Precip. probability: 1%
  • Precipitation: 0mm
  • Wind: 20km/hNNE 19°
  • Humidity: 64%
  • Pressure: 1030mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
Sunset: 6:01 pm
  • 7 pm
  • 11°C
  • Feels like:
    9°C
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0mm
  • Wind: 18km/hNNE 18°
  • Humidity: 68%
  • Pressure: 1030mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
  • 8 pm
  • 10°C
  • Feels like:
    8°C
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0mm
  • Wind: 17km/hNNE 14°
  • Humidity: 69%
  • Pressure: 1030mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
  • 9 pm
  • 10°C
  • Feels like:
    8°C
Cloudy
Cloudy
  • Precip. probability: 23%
  • Precipitation: 0mm
  • Wind: 18km/hN 10°
  • Humidity: 71%
  • Pressure: 1029mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
  • 10 pm
  • 10°C
  • Feels like:
    7°C
Light Rain
Light Rain
  • Precip. probability: 53%
  • Precipitation: 1mm
  • Wind: 18km/hN 6°
  • Humidity: 74%
  • Pressure: 1029mbar
  • Visibility: 8km
  • UV index: 0
  • ▼
  • 11 pm
  • 10°C
  • Feels like:
    7°C
Rain
Rain
  • Precip. probability: 66%
  • Precipitation: 1mm
  • Wind: 19km/hN 1°
  • Humidity: 80%
  • Pressure: 1029mbar
  • Visibility: 8km
  • UV index: 0
  • ▼
Today, primarily cloudy and occasionally rain-soaked weather is predicted.
With minimal precipitation of 1mm, rain is expected at 10 pm and 11 pm.
The temperature will be between the highest temperature of 13°C and the lowest temperature of 10°C. The warmest part of the day will be from noon to 4 pm.
Today, the high temperature will be alike with October's average. The night temperature will be also consistent with the standard October low of 8.3°C.
Updated: Oct 18, 2026 @ 10:59:48 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Currently (10:59 am GMT) it is 12°C in Grantham.

Today, in Grantham, expect a cloud-dominated atmosphere throughout.

Light precipitation of 10mm is forecasted in Grantham. The possibility of rainfall is 24%.

Today, the highest temperature in Grantham, United Kingdom, will be 13°C, while the lowest temperature will be 9°C.
The highest temperature today will be in line with the average maximum temperature in October. The lowest temperature will be also in line with the average low of 8.3°C.

On Sunday, in Grantham, sunrise was at 7:34 am and sunset will be at 6:01 pm (BST).

Today, the daylight will last for 10h and 27min.