Isle of Lewis weather
Loading live data…Rain,rain likely tomorrow
Met Office, the European and the American model agree on a high near 9° in Isle of Lewis today. Tomorrow: rain, around 9°, with a 100% chance of rain.
CheckWeather.io on iPhoneFree. No ads, no account.Isle of Lewis weather warnings
Met Office yellow, amber and red warnings for Highlands & Eilean SiarChecking the Met Office for warnings in force for Highlands & Eilean Siar…
Isle of Lewis weather in numbers
measured normals and 10 years of recorded weatherIsle of Lewis swings 12°C across the year, from 15°C highs in July to 3°C lows in January, and January is usually the wettest month in a year that brings about 1454 mm of precipitation. Over 10 years of recorded weather it averages 0 days a year at 25°C or above, 11 frost nights, and rain on 216 days.
Day counts are from the ERA5 reanalysis for Isle of Lewis’s grid square, 2016 to 2025, counted the same way for every city so the numbers compare. A reanalysis square is an area, not a weather station, so it is good for counting days and not for a single day’s record.
The weather map: all three models at once
Met Office, European, American side by side around Isle of Lewis and nearby towns.Live rain radar →Isle of Lewis hourly forecast: next 14 hours
consensus of the three modelsRain in the next 24 hours, model by model
each model's own hourly precipitation, side by sideLoading the three models…
Isle of Lewis 10-day forecast, out to 14 days
where the models agree, and where they splitIsle of Lewis, Scotland is at its warmest in Jul (average highs near 15°C) and coldest in Jan (lows around 3°C), with roughly 1454 mm of precipitation across the year. Below, compare what Met Office, European, American forecast for Isle of Lewis right now, and see exactly where they disagree.
We grade every model against the weather that actually happened, so you can see which forecast model is most accurate in United Kingdom before you trust any single number.
Isle of Lewis climate by month
average daytime high and overnight low across a typical year (1991-2020)Source: 1991-2020 averages, ERA5 for this place adjusted with NASA POWER.
How Isle of Lewis' weather has changed since 1995
30 years of daily data, 1995-2024, shown as changeAround Isle of Lewis, the difference between 1995-2004 and 2015-2024 is +0.2°C, within the normal swing from year to year.
Average wind
2015-2024 against 1995-2004. Within the normal year-to-year swing
Bars: each year against the area's 30-year average. Dashed lines: the average of the first and the last ten years.
See the numbers year by year
| Year | Temp vs average | Wind vs avg |
|---|---|---|
| 1995 | −0.4°C | +1% |
| 1996 | −0.7°C | −4% |
| 1997 | +0.3°C | −3% |
| 1998 | −0.1°C | +5% |
| 1999 | −0.2°C | +3% |
| 2000 | −0.1°C | −1% |
| 2001 | −0.4°C | −6% |
| 2002 | +0.3°C | −2% |
| 2003 | +0.5°C | −2% |
| 2004 | +0.4°C | +2% |
| 2005 | +0.2°C | +6% |
| 2006 | +0.3°C | +2% |
| 2007 | +0.3°C | +5% |
| 2008 | ±0.0°C | +3% |
| 2009 | +0.2°C | −1% |
| 2010 | −0.7°C | −10% |
| 2011 | +0.1°C | +5% |
| 2012 | −0.5°C | −1% |
| 2013 | −0.4°C | +1% |
| 2014 | +0.4°C | −2% |
| 2015 | −0.4°C | +11% |
| 2016 | ±0.0°C | −2% |
| 2017 | +0.2°C | +3% |
| 2018 | −0.2°C | −1% |
| 2019 | +0.2°C | −4% |
| 2020 | +0.1°C | +3% |
| 2021 | ±0.0°C | −8% |
| 2022 | +0.6°C | +2% |
| 2023 | +0.6°C | −8% |
| 2024 | +0.4°C | +2% |
Source: NASA POWER daily data from the MERRA-2 reanalysis, 1995-2024. Each value describes a grid square of about 50 km around Isle of Lewis, not a weather station, and a square that takes in sea or a large lake runs milder than the city itself. That is why this section shows change against the square's own 30-year average rather than counts you could compare with a local station. Rain and snow are left out because their long-term record in this dataset is not consistent over time. "Within the normal year-to-year swing" means the change is smaller than the usual differences between single years.
Which forecast is most accurate in Isle of Lewis?
CheckWeather Score, graded against the weather that actually happened
The CheckWeather Score blends temperature, wind and rain accuracy, each measured against ERA5 (the recorded weather) over the last 30 days across 1950 cities. Lower error means a higher score. See which forecast model is most accurate in United Kingdom, how we measure forecast accuracy, or which model each weather app uses.
What do you think of the forecasts?
your vote countsThe accuracy above is the measured record. This is your opinion: which forecast service do you trust most in United Kingdom? Give each 1 to 5 stars.
One vote per service. Anonymous: we store no personal data, only a one-way hash of your connection for a day to stop double votes.
Where the models disagree
temperature and rain, judged separatelyThe models often agree on temperature and still split on rain, and rain is usually what decides whether a plan survives. A wide rain range means the shower is genuinely uncertain, not that the forecast is wrong.